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-rw-r--r--math/goblin/Makefile26
-rw-r--r--math/goblin/files/patch-Makefile26
-rw-r--r--math/goblin/files/patch-Makefile.conf20
-rw-r--r--math/goblin/files/patch-destructors395
-rw-r--r--math/goblin/files/patch-managedObject364
-rw-r--r--math/goblin/files/patch-tcl864214
6 files changed, 5009 insertions, 36 deletions
diff --git a/math/goblin/Makefile b/math/goblin/Makefile
index 0e90e9171c9e..b7c889f0c541 100644
--- a/math/goblin/Makefile
+++ b/math/goblin/Makefile
@@ -1,10 +1,5 @@
-# ex:ts=8
-# Ports collection makefile for: goblin
-# Date created: Mar 3, 2002
-# Whom: ijliao
-#
+# Created by: ijliao
# $FreeBSD$
-#
PORTNAME= goblin
DISTVERSION= 2.8b30
@@ -16,14 +11,18 @@ EXTRACT_SUFX= .tgz
MAINTAINER= gahr@FreeBSD.org
COMMENT= A Graph Object Library for Network Programming Problems
-USE_TK= 84+
-USE_TCL= 84+
+CONFLICTS= glpk-*
+
+USE_GCC= any
+NO_CCACHE= yes
+USE_TK= yes
USE_GMAKE= yes
USE_LDCONFIG= yes
MAKE_ARGS= CC="${CC}" CCFLAGS="${CFLAGS}" \
CXX="${CXX}" CXXFLAGS="${CXXFLAGS}" \
LD="${CXX}" LIBS="-lm ${LDFLAGS}" \
- libtcl=${USE_TCL} libtk=${USE_TK} prefix=${PREFIX}
+ libtcl=${USE_TCL} libtk=${USE_TK} \
+ prefix=${PREFIX}
ALL_TARGET= all shared
PLIST_SUB+= VERSION=${PORTVERSION:R}
@@ -38,9 +37,10 @@ CFLAGS+= -fPIC
.endif
post-patch:
- ${REINPLACE_CMD} -e 's|-lpthread|${PTHREAD_LIBS}|g' ${WRKSRC}/Makefile
${REINPLACE_CMD} -e 's|/usr/bin/wish|${WISH}|g' ${WRKSRC}/display
- ${REINPLACE_CMD} -e 's|%%WISH%%|${WISH}|g;s|%%PREFIX%%|${PREFIX}|g' \
+ ${REINPLACE_CMD} -e \
+ 's|%%WISH%%|${WISH}|g; \
+ s|%%PREFIX%%|${PREFIX}|g' \
${WRKSRC}/Makefile.conf
${REINPLACE_CMD} -e 's|\./gosh|${PREFIX}/bin/gosh|; \
s|\[pwd\] tcl|${PREFIX}/lib/goblin|g' \
@@ -56,10 +56,10 @@ do-install:
(cd ${WRKSRC}/include && ${COPYTREE_SHARE} \*.h ${PREFIX}/include/${PORTNAME})
${INSTALL} -d ${PREFIX}/lib/${PORTNAME}
(cd ${WRKSRC}/tcl && ${COPYTREE_SHARE} \* ${PREFIX}/lib/${PORTNAME})
- ${INSTALL_DATA} ${WRKSRC}/lib/libglpk.a ${PREFIX}/lib
${INSTALL_DATA} ${WRKSRC}/lib/libgoblin.a ${PREFIX}/lib
- ${INSTALL_DATA} ${WRKSRC}/libglpk.so ${PREFIX}/lib
${INSTALL_DATA} ${WRKSRC}/libgoblin.so ${PREFIX}/lib
+ ${INSTALL_DATA} ${WRKSRC}/lib/libglpk.a ${PREFIX}/lib
+ ${INSTALL_DATA} ${WRKSRC}/libglpk.so ${PREFIX}/lib
.if !defined(NOPORTDOCS)
${INSTALL} -d ${DOCSDIR}
${INSTALL} -d ${DOCSDIR}/html
diff --git a/math/goblin/files/patch-Makefile b/math/goblin/files/patch-Makefile
index e066327156cb..83231f08c38c 100644
--- a/math/goblin/files/patch-Makefile
+++ b/math/goblin/files/patch-Makefile
@@ -1,26 +1,6 @@
---- Makefile.orig 2010-05-28 10:41:25.000000000 +0000
-+++ Makefile 2010-05-28 10:41:41.000000000 +0000
-@@ -335,19 +335,11 @@
- shared : intro $(shared_objects)
-
- libgoblin.$(so_suffix) : $(lib_objects) $(shell_objects)
--ifeq ($(CC),gcc)
- $(LD) -shared -Wl,-soname,$@ -o $@ $^ $(LDFLAGS) $(LIBS)
--else
-- $(LD) -G -o $@ $^ $(LDFLAGS) $(LIBS)
--endif
- @echo "...Shared object ($@) has been successfully linked"
-
- libglpk.$(so_suffix) : $(glpk_objects) $(wrap_objects)
--ifeq ($(CC),gcc)
- $(LD) -shared -Wl,-soname,$@ -o $@ $(shell_objects) $^ -L. $(LDFLAGS) $(LIBS) -lgoblin
--else
-- $(LD) -G -o $@ $(shell_objects) $^ -L. $(LDFLAGS) $(LIBS) -lgoblin
--endif
- @echo "...Shared object ($@) has been successfully linked"
-
-
-@@ -367,11 +359,7 @@
+--- Makefile.orig 2009-10-11 02:10:45.000000000 +0200
++++ Makefile 2013-06-05 09:47:06.000000000 +0200
+@@ -367,11 +367,7 @@
else
gosh : $(gosh_objects) $(shared_objects)
diff --git a/math/goblin/files/patch-Makefile.conf b/math/goblin/files/patch-Makefile.conf
new file mode 100644
index 000000000000..eed8b2880fea
--- /dev/null
+++ b/math/goblin/files/patch-Makefile.conf
@@ -0,0 +1,20 @@
+--- Makefile.conf.orig 2013-06-04 14:27:38.000000000 +0200
++++ Makefile.conf 2013-06-04 14:27:57.000000000 +0200
+@@ -44,7 +44,7 @@
+ ifeq ($(os),solaris)
+ wish_name = /opt/csw/bin/wish
+ else
+- wish_name = /usr/bin/wish
++ wish_name = %%WISH%%
+ endif
+
+
+@@ -126,7 +126,7 @@
+ ifeq ($(os),solaris)
+ prefix = /opt/goblin/$(rel)
+ else
+- prefix = /usr
++ prefix = %%PREFIX%%
+ endif
+
+ goblin_include_path = $(prefix)/include
diff --git a/math/goblin/files/patch-destructors b/math/goblin/files/patch-destructors
new file mode 100644
index 000000000000..9a15aae73dd5
--- /dev/null
+++ b/math/goblin/files/patch-destructors
@@ -0,0 +1,395 @@
+--- include/investigator.h.orig 2013-06-04 14:33:44.000000000 +0200
++++ include/investigator.h 2013-06-04 14:34:16.000000000 +0200
+@@ -69,6 +69,8 @@
+ /// \retval true There are unvisited arcs in the incidence list of v
+ virtual bool Active(TNode v) const throw(ERRange) = 0;
+
++ virtual ~investigator() throw() {}
++
+ };
+
+ /// @}
+--- include/mixedGraph.h.orig 2013-06-04 14:34:21.000000000 +0200
++++ include/mixedGraph.h 2013-06-04 14:37:20.000000000 +0200
+@@ -79,6 +79,8 @@
+
+ lineGraph(abstractMixedGraph& G,TOption = LG_DIRECTED) throw(ERRejected);
+
++ ~lineGraph() throw() {};
++
+ };
+
+ /// \brief Subgraph of a given mixed graph induced by a specified node or arc set
+@@ -96,6 +98,7 @@
+ inducedSubgraph(abstractMixedGraph&,const indexSet<TNode>&,
+ const indexSet<TArc>&,const TOption = OPT_PARALLELS)
+ throw(ERRejected);
++ ~inducedSubgraph() throw() {}
+
+ };
+
+@@ -110,6 +113,7 @@
+ public:
+
+ colourContraction(abstractMixedGraph&,const TOption = 0) throw();
++ ~colourContraction () throw() {}
+
+ };
+
+@@ -125,6 +129,7 @@
+
+ explicitSurfaceGraph(abstractMixedGraph&,nestedFamily<TNode>&,
+ TFloat*,TArc*) throw();
++ ~explicitSurfaceGraph () throw() {}
+
+ };
+
+@@ -136,6 +141,7 @@
+ public:
+
+ explicitSubdivision(abstractMixedGraph&,const TOption = 0) throw();
++ ~explicitSubdivision () throw() {}
+
+ };
+
+--- include/sparseGraph.h.orig 2013-06-04 14:37:25.000000000 +0200
++++ include/sparseGraph.h 2013-06-04 14:43:39.000000000 +0200
+@@ -77,6 +77,7 @@
+ public:
+
+ complementaryGraph(abstractMixedGraph& G,TOption = 0) throw(ERRejected);
++ ~complementaryGraph() throw() {}
+
+ };
+
+@@ -96,6 +97,7 @@
+ public:
+
+ planarLineGraph(abstractMixedGraph& G,TOption = 0) throw(ERRejected);
++ ~planarLineGraph() throw() {}
+
+ };
+
+@@ -112,6 +114,7 @@
+ public:
+
+ vertexTruncation(abstractMixedGraph& _G,TOption = 0) throw(ERRejected);
++ ~vertexTruncation() throw() {}
+
+ };
+
+@@ -135,6 +138,7 @@
+ };
+
+ facetSeparation(abstractMixedGraph& G,TOptRotation mode = ROT_NONE) throw(ERRejected);
++ ~facetSeparation() throw() {}
+
+ };
+
+@@ -151,6 +155,7 @@
+ public:
+
+ dualGraph(abstractMixedGraph& G,TOption = 0) throw(ERRejected);
++ ~dualGraph() throw() {}
+
+ };
+
+@@ -170,6 +175,7 @@
+ public:
+
+ spreadOutRegular(abstractMixedGraph& G,TOption = 0) throw(ERRejected);
++ ~spreadOutRegular() throw() {}
+
+ };
+
+@@ -208,6 +214,8 @@
+ /// \param _CT The controller to handle this object
+ mycielskianGraph(unsigned k,goblinController& _CT = goblinDefaultContext) throw(ERRejected);
+
++ ~mycielskianGraph() throw() {}
++
+ };
+
+ /// @}
+@@ -256,6 +264,7 @@
+
+ triangularGraph(TNode cardinality,
+ goblinController& _CT = goblinDefaultContext) throw();
++ ~triangularGraph() throw() {}
+
+ };
+
+@@ -300,6 +309,8 @@
+ TNode minimumIntersection,TNode maximumIntersection,
+ goblinController& _CT = goblinDefaultContext) throw();
+
++ ~intersectionGraph() throw() {}
++
+ };
+
+
+@@ -311,6 +322,7 @@
+
+ sierpinskiTriangle(TNode depth,
+ goblinController& _CT = goblinDefaultContext) throw();
++ ~sierpinskiTriangle() throw() {}
+ };
+
+
+@@ -333,6 +345,7 @@
+ /// \param _CT The controller object to manage the created graph
+ openGrid(TNode _k,TNode _l,TOptGrid shape,
+ goblinController& _CT = goblinDefaultContext) throw(ERRejected);
++ ~openGrid() throw() {}
+
+ };
+
+@@ -358,6 +371,8 @@
+ polarGrid(TNode _k,TNode _l,TNode _p,TOptPolar facets,TOptPolar dim,
+ goblinController& _CT = goblinDefaultContext) throw(ERRejected);
+
++ ~polarGrid() throw() {}
++
+ };
+
+
+@@ -456,6 +471,8 @@
+ toroidalGrid(unsigned short hSkew,unsigned short vSize,short vSkew,unsigned short hSize,
+ TOptTorus facets,goblinController& _CT = goblinDefaultContext) throw(ERRejected);
+
++ ~toroidalGrid() throw() {}
++
+ };
+
+
+@@ -467,6 +484,8 @@
+
+ moebiusLadder(TNode _k,goblinController& _CT = goblinDefaultContext) throw(ERRejected);
+
++ ~moebiusLadder() throw() {}
++
+ };
+
+
+@@ -508,6 +527,8 @@
+ /// - <code>generalizedPetersen(10,3)</code> is known as the Desargues graph.
+ generalizedPetersen(TNode perimeter,TNode skew,goblinController& _CT = goblinDefaultContext) throw(ERRejected);
+
++ ~generalizedPetersen() throw() {}
++
+ };
+
+
+@@ -532,6 +553,8 @@
+ gridCompletion(TNode dim,TOptShape shape,
+ goblinController& _CT = goblinDefaultContext) throw(ERRejected);
+
++ ~gridCompletion() throw() {}
++
+ };
+
+
+@@ -581,6 +604,8 @@
+ /// interval [randMin,..,randMax] are assumed.
+ void GenerateThis(TFloat threshold,TFloat* nodeWeight,long randMin,long randMax) throw();
+
++ ~thresholdGraph() throw() {}
++
+ };
+
+
+@@ -601,6 +626,8 @@
+ /// is generated.
+ permutationGraph(TNode numNodes,TNode* map = NULL,goblinController& _CT = goblinDefaultContext) throw();
+
++ ~permutationGraph() throw() {}
++
+ };
+
+
+@@ -650,6 +677,8 @@
+ /// intervals are specified, random intervals are generated.
+ void GenerateThis(TFloat* minRange,TFloat* maxRange,TIndex valueRange) throw();
+
++ ~intervalGraph() throw() {}
++
+ };
+
+ /// @}
+--- include/sparseBigraph.h.orig 2013-06-04 14:43:47.000000000 +0200
++++ include/sparseBigraph.h 2013-06-04 14:44:05.000000000 +0200
+@@ -80,6 +80,8 @@
+ inducedBigraph(abstractMixedGraph&,const indexSet<TNode>&,
+ const indexSet<TNode>&,const TOption = OPT_PARALLELS) throw(ERRejected);
+
++ ~inducedBigraph() throw() {}
++
+ };
+
+ /// @}
+--- include/sparseDigraph.h.orig 2013-06-04 14:44:29.000000000 +0200
++++ include/sparseDigraph.h 2013-06-04 14:46:58.000000000 +0200
+@@ -116,6 +116,8 @@
+
+ inducedOrientation(abstractMixedGraph &G,TOption options = 0) throw(ERRejected);
+
++ ~inducedOrientation() throw() {}
++
+ };
+
+
+@@ -151,6 +153,8 @@
+ /// non-adjacent.
+ void MapEdgeCut() throw();
+
++ ~nodeSplitting() throw() {}
++
+ };
+
+ /// @}
+@@ -168,6 +172,8 @@
+ regularTree(TNode _depth,TNode deg,TNode _n = NoNode,
+ goblinController& thisContext = goblinDefaultContext) throw(ERRejected);
+
++ ~regularTree() throw() {}
++
+ };
+
+
+@@ -194,6 +200,8 @@
+ /// \param thisContext The context to which this graph object is attached
+ butterflyGraph(TNode length,TNode base=2,goblinController& thisContext = goblinDefaultContext) throw();
+
++ ~butterflyGraph() throw() {}
++
+ };
+
+
+@@ -215,6 +223,8 @@
+ /// \param thisContext The context to which this graph object is attached
+ cyclicButterfly(TNode length,TNode base=2,goblinController& thisContext = goblinDefaultContext) throw();
+
++ ~cyclicButterfly() throw() {}
++
+ };
+
+ /// @}
+@@ -239,6 +249,8 @@
+
+ directedDual(abstractMixedGraph &G,TOption options = 0) throw(ERRejected);
+
++ ~directedDual() throw() {}
++
+ };
+
+ /// @}
+@@ -258,6 +270,8 @@
+
+ transitiveClosure(abstractDiGraph &G,TOption options = 0) throw(ERRejected);
+
++ ~transitiveClosure() throw() {}
++
+ };
+
+
+@@ -272,6 +286,8 @@
+
+ intransitiveReduction(abstractDiGraph &G,TOption options = 0) throw(ERRejected);
+
++ ~intransitiveReduction() throw() {}
++
+ };
+
+ /// @}
+--- include/balancedDigraph.h.orig 2013-06-04 14:47:05.000000000 +0200
++++ include/balancedDigraph.h 2013-06-04 14:47:25.000000000 +0200
+@@ -72,6 +72,8 @@
+ TNode DefaultSourceNode() const throw() {return n-1;};
+ TNode DefaultTargetNode() const throw() {return n-2;};
+
++ ~splitGraph() throw() {}
++
+ };
+
+ #endif
+--- include/denseGraph.h.orig 2013-06-04 14:47:31.000000000 +0200
++++ include/denseGraph.h 2013-06-04 14:47:50.000000000 +0200
+@@ -95,6 +95,8 @@
+
+ metricGraph(abstractGraph &G) throw(ERRejected);
+
++ ~metricGraph() throw() {}
++
+ };
+
+ /// @}
+--- include/branchScheme.h.orig 2013-06-04 14:48:23.000000000 +0200
++++ include/branchScheme.h 2013-06-04 14:48:43.000000000 +0200
+@@ -131,7 +131,9 @@
+ {
+ public:
+
+- branchTree(goblinController &) throw();
++ branchTree(goblinController &) throw();
++
++ ~branchTree() throw() {}
+
+ };
+
+--- include/abstractSubgraph.h.orig 2013-06-04 14:48:50.000000000 +0200
++++ include/abstractSubgraph.h 2013-06-04 14:49:12.000000000 +0200
+@@ -102,7 +102,9 @@
+ virtual TArc M() const throw() = 0; //!<returns the number of edges
+ virtual unsigned long Allocated() const throw();
+
+- virtual TArc Reverse(TArc a) const throw(ERRange);
++ virtual TArc Reverse(TArc a) const throw(ERRange);
++
++ ~abstractSubgraph() throw() {}
+
+ };
+
+--- include/denseDigraph.h.orig 2013-06-04 14:51:07.000000000 +0200
++++ include/denseDigraph.h 2013-06-04 14:51:30.000000000 +0200
+@@ -92,6 +92,8 @@
+
+ distanceGraph(abstractMixedGraph &G) throw(ERRejected);
+
++ ~distanceGraph() throw() {}
++
+ };
+
+ /// @}
+--- include/goblinQueue.h.orig 2013-06-05 09:19:40.000000000 +0200
++++ include/goblinQueue.h 2013-06-05 09:22:11.000000000 +0200
+@@ -66,6 +66,8 @@
+ /// \return The queue cardinality
+ virtual TItem Cardinality() const throw() = 0;
+
++ ~goblinQueue() throw() {}
++
+ };
+
+ /// @}
+--- include/movingLineModel.h.orig 2013-06-05 09:41:41.000000000 +0200
++++ include/movingLineModel.h 2013-06-05 09:42:12.000000000 +0200
+@@ -66,6 +66,8 @@
+ /// \brief Modify the drawing of the original graph in terms of a closed walk in the stripe dissection model
+ void PerformBlockMove() throw();
+
++ ~movingLineModel() throw() {}
++
+ };
+
+ /// @}
+--- include/stripeDissectionModel.h.orig 2013-06-05 09:42:36.000000000 +0200
++++ include/stripeDissectionModel.h 2013-06-05 09:42:48.000000000 +0200
+@@ -51,6 +51,8 @@
+ /// \brief Update the drawing of the original graph in terms of an st-flow of the stripe dissection model
+ void UpdateDrawing() throw();
+
++ ~stripeDissectionModel() throw() {}
++
+ };
+
+ /// @}
diff --git a/math/goblin/files/patch-managedObject b/math/goblin/files/patch-managedObject
new file mode 100644
index 000000000000..2aab0444ebb0
--- /dev/null
+++ b/math/goblin/files/patch-managedObject
@@ -0,0 +1,364 @@
+--- include/managedObject.h.orig 2013-06-05 09:27:06.000000000 +0200
++++ include/managedObject.h 2013-06-05 09:27:19.000000000 +0200
+@@ -193,8 +193,8 @@
+ };
+
+
+-#define InternalError(scope,event) {sprintf(this->CT.logBuffer,"%s (%s, line: %d)",event,__FILE__,__LINE__); Error(ERR_INTERNAL,scope,this->CT.logBuffer);}
+-#define InternalError1(scope) {sprintf(this->CT.logBuffer,"%s (%s, line: %d)",this->CT.logBuffer,__FILE__,__LINE__); Error(ERR_INTERNAL,scope,this->CT.logBuffer);}
++#define InternalError(scope,event) {sprintf(this->CT.logBuffer,"%s (%s, line: %d)",event,__FILE__,__LINE__); this->Error(ERR_INTERNAL,scope,this->CT.logBuffer);}
++#define InternalError1(scope) {sprintf(this->CT.logBuffer,"%s (%s, line: %d)",this->CT.logBuffer,__FILE__,__LINE__); this->Error(ERR_INTERNAL,scope,this->CT.logBuffer);}
+
+
+ #endif
+--- lib_src/dynamicStack.cpp.orig 2013-06-05 09:24:05.000000000 +0200
++++ lib_src/dynamicStack.cpp 2013-06-05 09:23:48.000000000 +0200
+@@ -97,7 +97,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (w>=n) NoSuchItem("Insert",w);
++ if (w>=n) this->NoSuchItem("Insert",w);
+
+ #endif
+
+--- lib_src/dynamicQueue.cpp.orig 2013-06-05 09:24:43.000000000 +0200
++++ lib_src/dynamicQueue.cpp 2013-06-05 09:24:50.000000000 +0200
+@@ -97,7 +97,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (w>=n) NoSuchItem("Insert",w);
++ if (w>=n) this->NoSuchItem("Insert",w);
+
+ #endif
+
+--- lib_src/fibonacciHeap.cpp.orig 2013-06-05 09:25:25.000000000 +0200
++++ lib_src/fibonacciHeap.cpp 2013-06-05 09:29:46.000000000 +0200
+@@ -194,7 +194,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (v>=n || status[v]==NOT_QUEUED) NoSuchItem("Display",v);
++ if (v>=n || status[v]==NOT_QUEUED) this->NoSuchItem("Display",v);
+
+ #endif
+
+@@ -267,7 +267,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (w>=n) NoSuchItem("Insert",w);
++ if (w>=n) this->NoSuchItem("Insert",w);
+
+ #endif
+
+@@ -281,13 +281,13 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (w>=n) NoSuchItem("Insert",w);
++ if (w>=n) this->NoSuchItem("Insert",w);
+
+ if (status[w]!=NOT_QUEUED)
+ {
+ sprintf(this->CT.logBuffer,"Already on queue: %lu",
+ static_cast<unsigned long>(w));
+- Error(ERR_REJECTED,"Insert",this->CT.logBuffer);
++ this->Error(ERR_REJECTED,"Insert",this->CT.logBuffer);
+ }
+
+ #endif
+@@ -394,7 +394,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (v>=n) NoSuchItem("Link",v);
++ if (v>=n) this->NoSuchItem("Link",v);
+
+ if (status[v]!=ROOT_NODE)
+ {
+@@ -403,7 +403,7 @@
+ this -> Error(ERR_REJECTED,"Link",this->CT.logBuffer);
+ }
+
+- if (w>=n) NoSuchItem("Link",w);
++ if (w>=n) this->NoSuchItem("Link",w);
+
+ if (status[w]!=ROOT_NODE)
+ {
+@@ -459,7 +459,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (v>=n) NoSuchItem("Cut",v);
++ if (v>=n) this->NoSuchItem("Cut",v);
+
+ if (status[v]!=UNMARKED_CHILD && status[v]!=MARKED_CHILD)
+ {
+@@ -514,7 +514,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (w>=n || status[w]==NOT_QUEUED) NoSuchItem("Delete",w);
++ if (w>=n || status[w]==NOT_QUEUED) this->NoSuchItem("Delete",w);
+
+ #endif
+
+@@ -586,7 +586,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (w>=n || status[w]==NOT_QUEUED) NoSuchItem("Key",w);
++ if (w>=n || status[w]==NOT_QUEUED) this->NoSuchItem("Key",w);
+
+ #endif
+
+@@ -599,7 +599,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (w>=n || status[w]==NOT_QUEUED) NoSuchItem("ChangeKey",w);
++ if (w>=n || status[w]==NOT_QUEUED) this->NoSuchItem("ChangeKey",w);
+
+ #endif
+
+--- lib_src/basicHeap.cpp.orig 2013-06-05 09:30:16.000000000 +0200
++++ lib_src/basicHeap.cpp 2013-06-05 09:31:06.000000000 +0200
+@@ -140,7 +140,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (w>=n) NoSuchItem("Insert",w);
++ if (w>=n) this->NoSuchItem("Insert",w);
+
+ if (maxIndex>=n)
+ this -> Error(ERR_REJECTED,"Insert","Buffer is full");
+@@ -187,7 +187,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (w>=n) NoSuchItem("Delete",w);
++ if (w>=n) this->NoSuchItem("Delete",w);
+
+ #endif
+
+@@ -199,7 +199,7 @@
+ {
+ sprintf(this->CT.logBuffer,"Not a member: %lu",
+ static_cast<unsigned long>(w));
+- Error(ERR_REJECTED,"Delete",this->CT.logBuffer);
++ this->Error(ERR_REJECTED,"Delete",this->CT.logBuffer);
+ }
+
+ #endif
+@@ -244,7 +244,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (w>=n) NoSuchItem("Key",w);
++ if (w>=n) this->NoSuchItem("Key",w);
+
+ #endif
+
+@@ -257,13 +257,13 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (w>=n) NoSuchItem("ChangeKey",w);
++ if (w>=n) this->NoSuchItem("ChangeKey",w);
+
+ if (key[w]==InfFloat)
+ {
+ sprintf(this->CT.logBuffer,"Not a member: %lu",
+ static_cast<unsigned long>(w));
+- Error(ERR_REJECTED,"ChangeKey",this->CT.logBuffer);
++ this->Error(ERR_REJECTED,"ChangeKey",this->CT.logBuffer);
+ }
+
+ #endif
+--- lib_src/binaryHeap.cpp.orig 2013-06-05 09:31:39.000000000 +0200
++++ lib_src/binaryHeap.cpp 2013-06-05 09:34:23.000000000 +0200
+@@ -142,7 +142,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (i>maxIndex || i==0) NoSuchIndex("Display",i);
++ if (i>maxIndex || i==0) this->NoSuchIndex("Display",i);
+
+ if (i!=index[v[i]])
+ {
+@@ -201,7 +201,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (i>maxIndex || i==0) NoSuchIndex("UpHeap",i);
++ if (i>maxIndex || i==0) this->NoSuchIndex("UpHeap",i);
+
+ #endif
+
+@@ -226,7 +226,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (i>maxIndex || i==0) NoSuchIndex("DownHeap",i);
++ if (i>maxIndex || i==0) this->NoSuchIndex("DownHeap",i);
+
+ #endif
+
+@@ -262,7 +262,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (w>=n) NoSuchIndex("Insert",w);
++ if (w>=n) this->NoSuchIndex("Insert",w);
+
+ if (maxIndex>=n) this -> Error(ERR_REJECTED,"Insert","Heap overflow");
+
+@@ -299,7 +299,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (w>=n || index[w]==UITEM_MAX()) NoSuchItem("Delete",w);
++ if (w>=n || index[w]==UITEM_MAX()) this->NoSuchItem("Delete",w);
+
+ #endif
+
+@@ -381,7 +381,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (w>=n || index[w]==UITEM_MAX()) NoSuchItem("Key",w);
++ if (w>=n || index[w]==UITEM_MAX()) this->NoSuchItem("Key",w);
+
+ #endif
+
+@@ -394,7 +394,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (w>=n || index[w]==UITEM_MAX()) NoSuchItem("ChangeKey",w);
++ if (w>=n || index[w]==UITEM_MAX()) this->NoSuchItem("ChangeKey",w);
+
+ #endif
+
+--- lib_src/matrix.cpp.orig 2013-06-05 09:34:55.000000000 +0200
++++ lib_src/matrix.cpp 2013-06-05 09:36:49.000000000 +0200
+@@ -291,10 +291,10 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (!this->transp && i>=this->k) NoSuchIndex("Coeff",i);
+- if (!this->transp && j>=this->l) NoSuchIndex("Coeff",j);
+- if (this->transp && i>=this->l) NoSuchIndex("Coeff",i);
+- if (this->transp && j>=this->k) NoSuchIndex("Coeff",j);
++ if (!this->transp && i>=this->k) this->NoSuchIndex("Coeff",i);
++ if (!this->transp && j>=this->l) this->NoSuchIndex("Coeff",j);
++ if (this->transp && i>=this->l) this->NoSuchIndex("Coeff",i);
++ if (this->transp && j>=this->k) this->NoSuchIndex("Coeff",j);
+
+ #endif
+
+@@ -309,10 +309,10 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (!this->transp && i>=this->k) NoSuchIndex("Coeff",i);
+- if (!this->transp && j>=this->l) NoSuchIndex("Coeff",j);
+- if (this->transp && i>=this->l) NoSuchIndex("SetCoeff",i);
+- if (this->transp && j>=this->k) NoSuchIndex("SetCoeff",j);
++ if (!this->transp && i>=this->k) this->NoSuchIndex("Coeff",i);
++ if (!this->transp && j>=this->l) this->NoSuchIndex("Coeff",j);
++ if (this->transp && i>=this->l) this->NoSuchIndex("SetCoeff",i);
++ if (this->transp && j>=this->k) this->NoSuchIndex("SetCoeff",j);
+
+ if (a>=InfFloat || a<=-InfFloat)
+ this->Error(ERR_RANGE,"SetCoeff","Finite matrix coefficients required");
+@@ -388,10 +388,10 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (!this->transp && i>=this->k) NoSuchIndex("Coeff",i);
+- if (!this->transp && j>=this->l) NoSuchIndex("Coeff",j);
+- if (this->transp && i>=this->l) NoSuchIndex("Coeff",i);
+- if (this->transp && j>=this->k) NoSuchIndex("Coeff",j);
++ if (!this->transp && i>=this->k) this->NoSuchIndex("Coeff",i);
++ if (!this->transp && j>=this->l) this->NoSuchIndex("Coeff",j);
++ if (this->transp && i>=this->l) this->NoSuchIndex("Coeff",i);
++ if (this->transp && j>=this->k) this->NoSuchIndex("Coeff",j);
+
+ #endif
+
+@@ -406,10 +406,10 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (!this->transp && i>=this->k) NoSuchIndex("SetCoeff",i);
+- if (!this->transp && j>=this->l) NoSuchIndex("SetCoeff",j);
+- if (this->transp && i>=this->l) NoSuchIndex("SetCoeff",i);
+- if (this->transp && j>=this->k) NoSuchIndex("SetCoeff",j);
++ if (!this->transp && i>=this->k) this->NoSuchIndex("SetCoeff",i);
++ if (!this->transp && j>=this->l) this->NoSuchIndex("SetCoeff",j);
++ if (this->transp && i>=this->l) this->NoSuchIndex("SetCoeff",i);
++ if (this->transp && j>=this->k) this->NoSuchIndex("SetCoeff",j);
+
+ if (a>=InfFloat || a<=-InfFloat)
+ this->Error(ERR_RANGE,"SetCoeff","Finite matrix coefficients required");
+--- lib_src/staticStack.cpp.orig 2013-06-05 09:43:13.000000000 +0200
++++ lib_src/staticStack.cpp 2013-06-05 09:44:06.000000000 +0200
+@@ -143,7 +143,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (w>=n) NoSuchItem("Insert",w);
++ if (w>=n) this->NoSuchItem("Insert",w);
+
+ #endif
+
+@@ -246,7 +246,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (i>=n) NoSuchItem("IsMember",i);
++ if (i>=n) this->NoSuchItem("IsMember",i);
+
+ #endif
+
+@@ -272,7 +272,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (i>=n) NoSuchItem("Successor",i);
++ if (i>=n) this->NoSuchItem("Successor",i);
+
+ #endif
+
+--- lib_src/staticQueue.cpp.orig 2013-06-05 09:45:07.000000000 +0200
++++ lib_src/staticQueue.cpp 2013-06-05 09:45:38.000000000 +0200
+@@ -143,7 +143,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (w>=n) NoSuchItem("Insert",w);
++ if (w>=n) this->NoSuchItem("Insert",w);
+
+ #endif
+
+@@ -248,7 +248,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (i>=n) NoSuchItem("IsMember",i);
++ if (i>=n) this->NoSuchItem("IsMember",i);
+
+ #endif
+
+@@ -272,7 +272,7 @@
+ {
+ #if defined(_FAILSAVE_)
+
+- if (i>=n) NoSuchItem("Successor",i);
++ if (i>=n) this->NoSuchItem("Successor",i);
+
+ #endif
+
diff --git a/math/goblin/files/patch-tcl86 b/math/goblin/files/patch-tcl86
new file mode 100644
index 000000000000..6f874f39466a
--- /dev/null
+++ b/math/goblin/files/patch-tcl86
@@ -0,0 +1,4214 @@
+--- shell_src/goshGraph.cpp.orig 2013-06-04 14:51:44.000000000 +0200
++++ shell_src/goshGraph.cpp 2013-06-04 16:26:04.000000000 +0200
+@@ -173,7 +173,7 @@
+ {
+ TNode u = atol(argv[2]);
+ TNode v = G -> SwapNode(u);
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(v));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(v)));
+ return TCL_OK;
+ }
+
+@@ -384,12 +384,12 @@
+
+ try
+ {
+- sprintf(interp->result,"%f",G->FlowValue(sourceNode,sourceNode^1));
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(G->FlowValue(sourceNode,sourceNode^1)));
+ return TCL_OK;
+ }
+ catch (ERCheck)
+ {
+- sprintf(interp->result,"Flow is corrupted");
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Flow is corrupted", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -400,12 +400,12 @@
+ try
+ {
+ G -> FlowValue(sourceNode,sourceNode^1);
+- sprintf(interp->result,"%f",ret);
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(ret));
+ return TCL_OK;
+ }
+ catch (ERCheck)
+ {
+- interp->result = "Flow is corrupted";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Flow is corrupted", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -453,6 +453,8 @@
+ int Goblin_Sparse_Cmd (abstractMixedGraph *G,Tcl_Interp* interp,int argc,
+ _CONST_QUAL_ char* argv[]) throw(ERRejected,ERRange)
+ {
++ Tcl_ResetResult(interp);
++
+ if (strcmp(argv[1],"reorder")==0)
+ {
+ if (argc!=4)
+@@ -466,29 +468,27 @@
+ if (strcmp(argv[3],"-planar")==0)
+ {
+ if (G->PlanarizeIncidenceOrder())
+- interp->result = "1";
+- else interp->result = "0";
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(1));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(0));
+ return GOSH_OK;
+ }
+
+ if (strcmp(argv[3],"-shuffle")==0)
+ {
+ G -> RandomizeIncidenceOrder();
+- interp->result = "";
+ return GOSH_OK;
+ }
+
+ if (strcmp(argv[3],"-geometric")==0)
+ {
+ G -> IncidenceOrderFromDrawing();
+- interp->result = "";
+ return GOSH_OK;
+ }
+
+ if (strcmp(argv[3],"-outerplanar")==0)
+ {
+ G -> GrowExteriorFace();
+- interp->result = "";
+ return GOSH_OK;
+ }
+
+@@ -517,14 +517,13 @@
+ else
+ {
+ delete[] keyValue;
+- interp->result = "Missing key value specification";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing key value specification", -1));
+ return TCL_OK;
+ }
+
+ GR -> ReorderNodeIndices(keyValue);
+
+ delete[] keyValue;
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -550,18 +549,17 @@
+ else
+ {
+ delete[] keyValue;
+- interp->result = "Missing key value specification";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing key value specification", -1));
+ return TCL_OK;
+ }
+
+ GR -> ReorderEdgeIndices(keyValue);
+
+ delete[] keyValue;
+- interp->result = "";
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: %s reorder %s",argv[0],argv[2]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[0], " reorder ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -600,12 +598,11 @@
+ sourceNode,targetNode)
+ )
+ {
+- interp->result = "";
+ return GOSH_OK;
+ }
+ else
+ {
+- interp->result = "Graph is not edge series parallel";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Graph is not edge series parallel", -1));
+ return GOSH_ERROR;
+ }
+ }
+@@ -625,7 +622,7 @@
+ return TCL_ERROR;
+ }
+
+- sprintf(interp->result,"%lu",static_cast<unsigned long>((G->N1())));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>((G->N1()))));
+ return TCL_OK;
+ }
+
+@@ -637,7 +634,7 @@
+ return TCL_ERROR;
+ }
+
+- sprintf(interp->result,"%lu",static_cast<unsigned long>((G->N2())));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>((G->N2()))));
+ return TCL_OK;
+ }
+
+@@ -648,9 +645,11 @@
+ int Goblin_Undirected_Cmd (abstractGraph *G,Tcl_Interp* interp,int argc,
+ _CONST_QUAL_ char* argv[]) throw(ERRejected,ERRange)
+ {
++ Tcl_ResetResult(interp);
++
+ if (argc<2)
+ {
+- interp->result = "Missing arguments";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing arguments", -1));
+ return TCL_ERROR;
+ }
+
+@@ -669,7 +668,6 @@
+ Goblin_Sparse_Graph_Cmd,reinterpret_cast<ClientData>(H),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -687,7 +685,6 @@
+ Goblin_Dense_Graph_Cmd,reinterpret_cast<ClientData>(H),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Dense_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -701,7 +698,7 @@
+
+ TFloat ret = G -> MaximumMatching();
+
+- sprintf(interp->result,"%f",ret);
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(ret));
+ return TCL_OK;
+ }
+
+@@ -715,12 +712,12 @@
+
+ if (G -> MinCMatching())
+ {
+- sprintf(interp->result,"%f",G->Weight());
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(G->Weight()));
+ return TCL_OK;
+ }
+ else
+ {
+- interp->result = "No such structure exists";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("No such structure exists", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -735,7 +732,7 @@
+
+ TFloat ret = G -> MinCEdgeCover();
+
+- sprintf(interp->result,"%f",ret);
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(ret));
+ return TCL_OK;
+ }
+
+@@ -750,12 +747,12 @@
+ try
+ {
+ G -> MinCTJoin(demandNodes(*G));
+- sprintf(interp->result,"%f",G->Weight());
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(G->Weight()));
+ return TCL_OK;
+ }
+ catch (ERRejected)
+ {
+- interp->result = "No such structure exists";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("No such structure exists", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -767,9 +764,11 @@
+ int Goblin_Directed_Cmd (abstractDiGraph *G,Tcl_Interp* interp,int argc,
+ _CONST_QUAL_ char* argv[]) throw(ERRejected,ERRange)
+ {
++ Tcl_ResetResult(interp);
++
+ if (argc<2)
+ {
+- interp->result = "Missing arguments";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing arguments", -1));
+ return TCL_ERROR;
+ }
+
+@@ -788,7 +787,6 @@
+ Goblin_Sparse_Digraph_Cmd,reinterpret_cast<ClientData>(H),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Digraph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -806,7 +804,6 @@
+ Goblin_Sparse_Digraph_Cmd,reinterpret_cast<ClientData>(H),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Digraph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -824,7 +821,6 @@
+ Goblin_Sparse_Digraph_Cmd,reinterpret_cast<ClientData>(H),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Digraph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -842,7 +838,6 @@
+ Goblin_Ilp_Cmd,reinterpret_cast<ClientData>(XLP),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Ilp);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -860,7 +855,6 @@
+ Goblin_Balanced_FNW_Cmd,reinterpret_cast<ClientData>(H),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Balanced_FNW);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -876,11 +870,10 @@
+
+ if (v==NoNode)
+ {
+- interp->result = "*";
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(v));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(v)));
+ return TCL_OK;
+ }
+
+@@ -896,11 +889,11 @@
+
+ if (v==NoNode)
+ {
+- interp->result = "Graph is not a DAG";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Graph is not a DAG", -1));
+ return TCL_ERROR;
+ }
+
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(v));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(v)));
+ return TCL_OK;
+ }
+
+@@ -916,7 +909,7 @@
+ }
+
+ TCap ret = G->TreePacking(rootNode);
+- sprintf(interp->result,"%f",ret);
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(ret));
+ return TCL_OK;
+ }
+
+@@ -927,9 +920,11 @@
+ int Goblin_Generic_Graph_Cmd (abstractMixedGraph *G,Tcl_Interp* interp,int argc,
+ _CONST_QUAL_ char* argv[]) throw(ERRejected,ERRange)
+ {
++ Tcl_ResetResult(interp);
++
+ if (argc<2)
+ {
+- interp->result = "Missing arguments";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing arguments", -1));
+ return TCL_ERROR;
+ }
+
+@@ -947,7 +942,6 @@
+ Goblin_Graph_Display_Proxy_Cmd,reinterpret_cast<ClientData>(DP),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Graph_Display_Proxy);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -966,7 +960,6 @@
+ Goblin_Mixed_Graph_Cmd,reinterpret_cast<ClientData>(H),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Mixed_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1003,7 +996,6 @@
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Mixed_Graph);
+ }
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1032,7 +1024,6 @@
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Digraph);
+ }
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1050,7 +1041,6 @@
+ Goblin_Sparse_Graph_Cmd,reinterpret_cast<ClientData>(H),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1068,7 +1058,6 @@
+ Goblin_Sparse_Graph_Cmd,reinterpret_cast<ClientData>(H),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1099,7 +1088,6 @@
+ Goblin_Sparse_Graph_Cmd,reinterpret_cast<ClientData>(H),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1117,7 +1105,6 @@
+ Goblin_Sparse_Graph_Cmd,reinterpret_cast<ClientData>(H),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1135,7 +1122,6 @@
+ Goblin_Sparse_Graph_Cmd,reinterpret_cast<ClientData>(H),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1153,7 +1139,6 @@
+ Goblin_Sparse_Graph_Cmd,reinterpret_cast<ClientData>(H),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1204,7 +1189,6 @@
+ Goblin_Mixed_Graph_Cmd,reinterpret_cast<ClientData>(H),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Mixed_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1222,7 +1206,6 @@
+ Goblin_Sparse_Digraph_Cmd,reinterpret_cast<ClientData>(H),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Digraph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1252,7 +1235,6 @@
+ Goblin_Sparse_Bigraph_Cmd,reinterpret_cast<ClientData>(H),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Bigraph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1270,7 +1252,6 @@
+ Goblin_Mixed_Graph_Cmd,reinterpret_cast<ClientData>(H),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Mixed_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1288,7 +1269,6 @@
+ Goblin_Sparse_Digraph_Cmd,reinterpret_cast<ClientData>(H),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Digraph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1306,7 +1286,6 @@
+ Goblin_Sparse_Digraph_Cmd,reinterpret_cast<ClientData>(H),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Digraph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1324,7 +1303,6 @@
+ Goblin_Mixed_Graph_Cmd,reinterpret_cast<ClientData>(H),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Mixed_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1342,7 +1320,6 @@
+ Goblin_Dense_Digraph_Cmd,reinterpret_cast<ClientData>(H),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Dense_Digraph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1361,7 +1338,6 @@
+ Goblin_Ilp_Cmd,reinterpret_cast<ClientData>(XLP),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Ilp);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1378,7 +1354,7 @@
+
+ if (!X->IsGraphObject())
+ {
+- sprintf(interp->result,"Not a graph object ID: %s",argv[argc-1]);
++ Tcl_AppendResult(interp, "Not a graph object ID: ", argv[argc-1], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -1386,7 +1362,7 @@
+
+ if (Y==NULL || !(Y->IsSparse()))
+ {
+- interp->result = "Unhandled object type";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Unhandled object type", -1));
+ return TCL_ERROR;
+ }
+
+@@ -1417,7 +1393,6 @@
+ G -> AddGraphByNodes(*Y,mergeLayoutMode);
+ }
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1443,7 +1418,7 @@
+ {
+ if (argc==5)
+ {
+- interp->result = "Missing coordinate values";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing coordinate values", -1));
+ return TCL_ERROR;
+ }
+
+@@ -1454,7 +1429,6 @@
+ G->Representation() -> SetC(p,TDim(i-5),pos);
+ }
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1462,13 +1436,13 @@
+ {
+ if (!G->IsSparse())
+ {
+- interp->result = "Operation applies to sparse graphs only";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Operation applies to sparse graphs only", -1));
+ return TCL_ERROR;
+ }
+
+ sparseRepresentation* GR = static_cast<sparseRepresentation*>(G->Representation());
+
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(GR->InsertThreadSuccessor(p)));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(GR->InsertThreadSuccessor(p))));
+ return TCL_OK;
+ }
+
+@@ -1476,27 +1450,27 @@
+ {
+ if (strcmp(argv[5],"-cx")==0)
+ {
+- sprintf(interp->result,"%f",G->C(p,0));
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(G->C(p,0)));
+ }
+ else if (strcmp(argv[5],"-cy")==0)
+ {
+- sprintf(interp->result,"%f",G->C(p,1));
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(G->C(p,1)));
+ }
+ else if (strcmp(argv[5],"-successor")==0)
+ {
+ if (G->ThreadSuccessor(p)!=NoNode)
+ {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(G->ThreadSuccessor(p)));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(G->ThreadSuccessor(p))));
+ }
+- else interp->result = "*";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
+ }
+ else if (strcmp(argv[5],"-hidden")==0)
+ {
+- sprintf(interp->result,"%d",G->HiddenNode(p));
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(G->HiddenNode(p)));
+ }
+ else
+ {
+- sprintf(interp->result,"Unknown layout point attribute: %s",argv[5]);
++ Tcl_AppendResult(interp, "Unknown layout point attribute: ", argv[5], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -1507,13 +1481,12 @@
+ if (strcmp(argv[2],"alignWithOrigin")==0)
+ {
+ G -> Layout_AlignWithOrigin();
+- interp->result = "";
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[2],"#points")==0)
+ {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(G->L()));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(G->L())));
+ return TCL_OK;
+ }
+
+@@ -1522,21 +1495,18 @@
+ if (strcmp(argv[3],"freeze")==0)
+ {
+ G -> Layout_FreezeBoundingBox();
+- interp->result = "";
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"default")==0)
+ {
+ G -> Layout_DefaultBoundingBox();
+- interp->result = "";
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"release")==0)
+ {
+ G -> Layout_ReleaseBoundingBox();
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1546,7 +1516,7 @@
+
+ if (pos<=0 || pos>=argc-1)
+ {
+- interp->result = "Missing value for parameter \"-coordinate\"";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing value for parameter \"-coordinate\"", -1));
+ return TCL_ERROR;
+ }
+
+@@ -1554,7 +1524,7 @@
+
+ if (coordinate>=G->Dim())
+ {
+- interp->result = "Invalid coordinate index";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Invalid coordinate index", -1));
+ return TCL_ERROR;
+ }
+
+@@ -1564,7 +1534,7 @@
+
+ if (pos<=0 || pos>=argc-2)
+ {
+- interp->result = "Missing values for parameter \"-range\"";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing values for parameter \"-range\"", -1));
+ return TCL_ERROR;
+ }
+
+@@ -1572,7 +1542,6 @@
+ TFloat cMax = TFloat(atol(argv[pos+2]));
+
+ G -> Layout_TransformCoordinate(coordinate,cMin,cMax);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1585,7 +1554,7 @@
+
+ if (pos>0 && pos<argc)
+ {
+- sprintf(interp->result,"%f",cMax);
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(cMax));
+ return TCL_OK;
+ }
+
+@@ -1593,7 +1562,7 @@
+
+ if (pos>0 && pos<argc)
+ {
+- sprintf(interp->result,"%f",cMin);
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(cMin));
+ return TCL_OK;
+ }
+
+@@ -1603,15 +1572,15 @@
+ {
+ TFloat spacing = 1.0;
+ G -> GetLayoutParameter(TokLayoutBendSpacing,spacing);
+- sprintf(interp->result,"%lu",static_cast<unsigned long>((cMax-cMin)/spacing));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>((cMax-cMin)/spacing)));
+ return TCL_OK;
+ }
+
+- interp->result = "Missing parameter specification";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing parameter specification", -1));
+ return TCL_ERROR;
+ }
+
+- sprintf(interp->result,"Unknown option: %s layout boundingBox %s",argv[0],argv[3]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[0], " layout boundingBox ", argv[3], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -1630,15 +1599,14 @@
+ if ( argv[keyCount][0]!='-'
+ || !G->SetLayoutParameter(&(argv[keyCount][1]),argv[keyCount+1]))
+ {
+- sprintf(interp->result,"Invalid assignment: %s layout configure %s %s",
+- argv[0],argv[keyCount],argv[keyCount+1]);
++ Tcl_AppendResult(interp, "Invalid assignment: ", argv[0], " layout configure ",
++ argv[keyCount], argv[keyCount+1], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+ keyCount += 2;
+ }
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1654,16 +1622,16 @@
+ {
+ if (G->Dim()>0 && G->CMax(0)>-100000 && G->CMax(1)>-100000)
+ {
+- interp->result = "1";
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(1));
+ }
+ else
+ {
+- interp->result = "0";
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(0));
+ }
+ }
+- else if (!G->GetLayoutParameter(&(argv[3][1]),interp->result))
++ else if (!G->GetLayoutParameter(&(argv[3][1]),(char *)Tcl_GetStringResult(interp)))
+ {
+- sprintf(interp->result,"Unknown layout parameter %s",argv[3]);
++ Tcl_AppendResult(interp, "Unknown layout parameter ", argv[3], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -1681,7 +1649,7 @@
+ }
+ else
+ {
+- interp->result = "Missing value for parameter \"-spacing\"";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing value for parameter \"-spacing\"", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -1690,13 +1658,12 @@
+ {
+ if (!G->IsSparse())
+ {
+- interp->result = "Operation applies to sparse graphs only";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Operation applies to sparse graphs only", -1));
+ return TCL_ERROR;
+ }
+
+ static_cast<sparseRepresentation*>(G->Representation()) -> Layout_ArcRouting(spacing);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1715,7 +1682,7 @@
+ }
+ else
+ {
+- interp->result = "Missing value for parameter \"-dx\"";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing value for parameter \"-dx\"", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -1730,7 +1697,7 @@
+ }
+ else
+ {
+- interp->result = "Missing value for parameter \"-dy\"";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing value for parameter \"-dy\"", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -1761,7 +1728,6 @@
+ }
+ catch (ERRejected) {}
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1800,7 +1766,6 @@
+ abstractMixedGraph::FDP_DEFAULT,int(spacing));
+ }
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1869,7 +1834,6 @@
+ G -> Layout_Layered(method,dx,dy);
+ }
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1887,7 +1851,7 @@
+ {
+ if (!(G->Layout_Outerplanar(spacing)))
+ {
+- interp->result = "No outerplanar embedding given";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("No outerplanar embedding given", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -1896,7 +1860,6 @@
+ G -> Layout_Circular(spacing);
+ }
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1904,7 +1867,6 @@
+ {
+ G -> Layout_Equilateral(spacing);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1916,7 +1878,7 @@
+ if (pos<argc-1) grid = atol(argv[pos+1]);
+ else
+ {
+- interp->result = "Missing value for parameter \"-grid\"";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing value for parameter \"-grid\"", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -1932,7 +1894,7 @@
+ if (pos<argc-1) aBasis = atol(argv[pos+1]);
+ else
+ {
+- interp->result = "Missing value for parameter \"-basis\"";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing value for parameter \"-basis\"", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -1946,7 +1908,6 @@
+ G -> Layout_StraightLineDrawing(aBasis,grid);
+ }
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1963,7 +1924,7 @@
+ if (pos<argc-1) rootNode = atol(argv[pos+1]);
+ else
+ {
+- interp->result = "Missing value for parameter \"-rootNode\"";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing value for parameter \"-rootNode\"", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -1995,7 +1956,6 @@
+ G -> Layout_Kandinsky(abstractMixedGraph::ORTHO_DEFAULT,grid);
+ }
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -2024,11 +1984,10 @@
+ abstractMixedGraph::ORTHO_VISIBILITY_TRIM,grid);
+ }
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: %s layout %s",argv[0],argv[2]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[0], " layout ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -2054,11 +2013,11 @@
+ try
+ {
+ G -> ExtractTree(rootNode);
+- interp->result = "1";
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(1));
+ }
+ catch (ERCheck)
+ {
+- interp->result = "Invalid input data";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Invalid input data", -1));
+ return TCL_ERROR;
+ }
+
+@@ -2087,11 +2046,11 @@
+ try
+ {
+ G -> ExtractPath(sourceNode,targetNode);
+- interp->result = "1";
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(1));
+ }
+ catch (ERCheck)
+ {
+- interp->result = "Invalid input data";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Invalid input data", -1));
+ return TCL_ERROR;
+ }
+
+@@ -2108,11 +2067,11 @@
+ {
+ try
+ {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(G->ExtractCycles()));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(G->ExtractCycles())));
+ }
+ catch (ERCheck)
+ {
+- interp->result = "Invalid input data";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Invalid input data", -1));
+ return TCL_ERROR;
+ }
+
+@@ -2121,7 +2080,7 @@
+
+ try
+ {
+- interp->result = "1";
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(1));
+
+ if (strcmp(argv[2],"matching")==0)
+ {
+@@ -2159,20 +2118,20 @@
+ return TCL_OK;
+ }
+
+- interp->result = "1";
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(1));
+ }
+ catch (ERCheck)
+ {
+- interp->result = "Invalid input data";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Invalid input data", -1));
+ return TCL_ERROR;
+ }
+ catch (ERRejected)
+ {
+- interp->result = "Invalid input data";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Invalid input data", -1));
+ return TCL_ERROR;
+ }
+
+- sprintf(interp->result,"Unknown option: %s extract %s",argv[0],argv[2]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[0], " extract ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -2185,7 +2144,6 @@
+ }
+
+ Tcl_DeleteCommand(interp,argv[0]);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -2223,12 +2181,11 @@
+ }
+ else
+ {
+- sprintf(interp->result,"Unknown register attribute: %s",argv[i]);
++ Tcl_AppendResult(interp, "Unknown register attribute: ", argv[1], (char *)NULL);
+ return TCL_ERROR;
+ }
+ }
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -2240,7 +2197,7 @@
+ return TCL_ERROR;
+ }
+
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(G->N()));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(G->N())));
+ return TCL_OK;
+ }
+
+@@ -2252,7 +2209,7 @@
+ return TCL_ERROR;
+ }
+
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(G->M()));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(G->M())));
+ return TCL_OK;
+ }
+
+@@ -2270,74 +2227,83 @@
+ {
+ TNode s = G->DefaultSourceNode();
+
+- if (s==NoNode) interp->result = "*";
+- else sprintf(interp->result,"%lu",static_cast<unsigned long>(s));
++ if (s==NoNode) {
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
++ } else {
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(s)));
++ }
+ }
+ else if (strcmp(argv[2],"-targetNode")==0)
+ {
+ TNode t = G->DefaultTargetNode();
+
+- if (t==NoNode) interp->result = "*";
+- else sprintf(interp->result,"%lu",static_cast<unsigned long>(t));
++ if (t==NoNode) {
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
++ } else {
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(t)));
++ }
+ }
+ else if (strcmp(argv[2],"-rootNode")==0)
+ {
+ TNode r = G->DefaultRootNode();
+
+- if (r==NoNode) interp->result = "*";
+- else sprintf(interp->result,"%lu",static_cast<unsigned long>(r));
++ if (r==NoNode) {
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
++ } else {
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(r)));
++ }
+ }
+ else if (strcmp(argv[2],"-metricType")==0)
+ {
+- sprintf(interp->result,"%d",G->MetricType());
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(G->MetricType()));
+ }
+ else if (strcmp(argv[2],"-sparse")==0)
+ {
+- sprintf(interp->result,"%s", (G->IsSparse()) ? "1" : "0");
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(G->IsSparse() ? 1 : 0));
+ }
+ else if (strcmp(argv[2],"-directed")==0)
+ {
+- sprintf(interp->result,"%s", (G->IsDirected()) ? "1" : "0");
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(G->IsDirected() ? 1 : 0));
+ }
+ else if (strcmp(argv[2],"-undirected")==0)
+ {
+- sprintf(interp->result,"%s", (G->IsUndirected()) ? "1" : "0");
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(G->IsUndirected() ? 1 : 0));
+ }
+ else if (strcmp(argv[2],"-bipartite")==0)
+ {
+- sprintf(interp->result,"%s", (G->IsBipartite()) ? "1" : "0");
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(G->IsBipartite() ? 1 : 0));
+ }
+ else if (strcmp(argv[2],"-planar")==0)
+ {
+- sprintf(interp->result,"%s", (G->IsPlanar()) ? "1" : "0");
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(G->IsPlanar() ? 1 : 0));
+ }
+ else if (strcmp(argv[2],"-chordal")==0)
+ {
+- sprintf(interp->result,"%s", (G->IsChordal()) ? "1" : "0");
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(G->IsChordal() ? 1 : 0));
+ }
+ else if (strcmp(argv[2],"-co-chordal")==0)
+ {
+- sprintf(interp->result,"%s", (G->IsChordal(abstractMixedGraph::PERFECT_COMPLEMENT)) ? "1" : "0");
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(G->IsChordal(abstractMixedGraph::PERFECT_COMPLEMENT) ? 1 : 0));
+ }
+ else if (strcmp(argv[2],"-balanced")==0)
+ {
+- sprintf(interp->result,"%s", (G->IsBalanced()) ? "1" : "0");
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(G->IsBalanced() ? 1 : 0));
+ }
+ else if (strcmp(argv[2],"-graphObject")==0)
+ {
+- interp->result = "1";
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(1));
+ }
+ else if (strcmp(argv[2],"-cardinality")==0)
+ {
+- sprintf(interp->result,"%f",G->Cardinality());
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(G->Cardinality()));
+ }
+ else if (strcmp(argv[2],"-edgeLength")==0)
+ {
+- sprintf(interp->result,"%f",G->Length());
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(G->Length()));
+ }
+ else if (strcmp(argv[2],"-subgraphWeight")==0)
+ {
+- sprintf(interp->result,"%f",G->Weight());
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(G->Weight()));
+ }
+ else
+ {
+@@ -2354,12 +2320,11 @@
+ {
+ if (!G->IsSparse())
+ {
+- interp->result = "Operation applies to sparse graphs only";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Operation applies to sparse graphs only", -1));
+ return TCL_ERROR;
+ }
+
+ static_cast<sparseRepresentation*>(G->Representation()) -> ExplicitParallels();
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -2471,7 +2436,6 @@
+ }
+ }
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -2484,7 +2448,6 @@
+ }
+
+ G -> Write(argv[2]);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -2531,18 +2494,17 @@
+
+ if (targetNode!=NoNode && G->Dist(targetNode)<InfFloat)
+ {
+- sprintf(interp->result,"%f",G->Dist(targetNode));
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(G->Dist(targetNode)));
+ return TCL_OK;
+ }
+ else
+ {
+- interp->result = "*";
+ return TCL_OK;
+ }
+ }
+ catch (...) {}
+
+- interp->result = "Unable to assign distance labels";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Unable to assign distance labels", -1));
+ return TCL_ERROR;
+ }
+
+@@ -2609,7 +2571,7 @@
+ }
+ }
+
+- sprintf(interp->result,"%f",retCap);
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(retCap));
+ return TCL_OK;
+ }
+
+@@ -2632,11 +2594,11 @@
+
+ if (strongConnnectivity)
+ {
+- sprintf(interp->result,"%d",G->StronglyEdgeConnected(kappa));
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(G->StronglyEdgeConnected(kappa)));
+ }
+ else
+ {
+- sprintf(interp->result,"%d",G->EdgeConnected(kappa));
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(G->EdgeConnected(kappa)));
+ }
+
+ return TCL_OK;
+@@ -2680,12 +2642,11 @@
+
+ if (feasible)
+ {
+- interp->result = "";
+ return TCL_OK;
+ }
+ else
+ {
+- interp->result = "Graph is not 2-connected";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Graph is not 2-connected", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -2702,7 +2663,7 @@
+
+ if (threshold<=0)
+ {
+- sprintf(interp->result,"Invalid bound specification: %s",argv[pos+1]);
++ Tcl_AppendResult(interp, "Invalid bound specification: ", argv[pos+1], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -2712,12 +2673,12 @@
+
+ if (chi>0)
+ {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(chi));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(chi)));
+ return TCL_OK;
+ }
+ else
+ {
+- interp->result = "No such structure exists";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("No such structure exists", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -2734,7 +2695,7 @@
+
+ if (threshold<=0)
+ {
+- sprintf(interp->result,"Invalid bound specification: %s",argv[pos+1]);
++ Tcl_AppendResult(interp, "Invalid bound specification: ", argv[pos+1], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -2744,12 +2705,12 @@
+
+ if (chi>0)
+ {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(chi));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(chi)));
+ return TCL_OK;
+ }
+ else
+ {
+- interp->result = "No such structure exists";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("No such structure exists", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -2766,7 +2727,7 @@
+
+ if (threshold<=0)
+ {
+- sprintf(interp->result,"Invalid bound specification: %s",argv[pos+1]);
++ Tcl_AppendResult(interp, "Invalid bound specification: ", argv[pos+1], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -2776,12 +2737,12 @@
+
+ if (chi>0)
+ {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(chi));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(chi)));
+ return TCL_OK;
+ }
+ else
+ {
+- interp->result = "No such structure exists";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("No such structure exists", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -2794,7 +2755,7 @@
+ return TCL_ERROR;
+ }
+
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(G->StableSet()));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(G->StableSet())));
+ return TCL_OK;
+ }
+
+@@ -2806,7 +2767,7 @@
+ return TCL_ERROR;
+ }
+
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(G->Clique()));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(G->Clique())));
+ return TCL_OK;
+ }
+
+@@ -2818,7 +2779,7 @@
+ return TCL_ERROR;
+ }
+
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(G->VertexCover()));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(G->VertexCover())));
+ return TCL_OK;
+ }
+
+@@ -2830,13 +2791,13 @@
+ return TCL_ERROR;
+ }
+
+- sprintf(interp->result,"%d",G->EulerianCycle());
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(G->EulerianCycle()));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[1],"feedbackArcSet")==0)
+ {
+- sprintf(interp->result,"%f",G->FeedbackArcSet());
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(G->FeedbackArcSet()));
+ return TCL_OK;
+ }
+
+@@ -2855,12 +2816,12 @@
+
+ if (ret!=InfFloat)
+ {
+- sprintf(interp->result,"%f",ret);
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(ret));
+ return TCL_OK;
+ }
+ else
+ {
+- interp->result = "Graph is non-Hamiltonian";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Graph is non-Hamiltonian", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -2892,12 +2853,12 @@
+
+ if (ret!=InfFloat)
+ {
+- sprintf(interp->result,"%f",ret);
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(ret));
+ return TCL_OK;
+ }
+ else
+ {
+- interp->result = "Graph is disconnected";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Graph is disconnected", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -2917,12 +2878,12 @@
+
+ if (ret!=InfFloat)
+ {
+- sprintf(interp->result,"%f",ret);
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(ret));
+ return TCL_OK;
+ }
+ else
+ {
+- interp->result = "Terminal nodes are disconnected";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Terminal nodes are disconnected", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -2949,12 +2910,11 @@
+ {
+ if (G->AdmissibleBFlow())
+ {
+- interp->result = "";
+ return TCL_OK;
+ }
+ else
+ {
+- interp->result = "No such structure exists";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("No such structure exists", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -2964,12 +2924,12 @@
+
+ try
+ {
+- sprintf(interp->result,"%f",flowValue);
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(flowValue));
+ return TCL_OK;
+ }
+ catch (ERCheck)
+ {
+- sprintf(interp->result,"Flow is corrupted");
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("FLow is corrupted", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -2978,12 +2938,12 @@
+ try
+ {
+ TFloat ret = G->MinCostBFlow();
+- sprintf(interp->result,"%f",ret);
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(ret));
+ return TCL_OK;
+ }
+ catch (ERRejected)
+ {
+- interp->result = "No such structure exists";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("No such structure exists", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -2992,12 +2952,12 @@
+ try
+ {
+ TFloat ret = G -> MinCostSTFlow(sourceNode,targetNode);
+- sprintf(interp->result,"%f",ret);
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(ret));
+ return TCL_OK;
+ }
+ catch (ERCheck)
+ {
+- interp->result = "Flow is corrupted";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Flow is corrupted", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -3013,7 +2973,7 @@
+ }
+
+ G -> ChinesePostman(adjustUCap);
+- sprintf(interp->result,"%f",G->Weight());
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(G->Weight()));
+ return TCL_OK;
+ }
+
+@@ -3034,7 +2994,7 @@
+ targetNode = atol(argv[pos+1]);
+ }
+
+- sprintf(interp->result,"%f",G->MaxCut(sourceNode,targetNode));
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(G->MaxCut(sourceNode,targetNode)));
+
+ G -> InitSubgraph();
+
+@@ -3068,40 +3028,44 @@
+ if (G->MaxDemand()!=InfCap)
+ {
+ if (G->MaxDemand()!=(long int)(G->MaxDemand()))
+- sprintf(interp->result,"%f",G->MaxDemand());
+- else sprintf(interp->result,"%ld",(long int)G->MaxDemand());
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(G->MaxDemand()));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(G->MaxDemand()));
+ }
+- else interp->result = "*";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
+ }
+ else if (strcmp(argv[2],"-lowerBound")==0)
+ {
+ if (G->MaxLCap()!=(long int)(G->MaxLCap()))
+- sprintf(interp->result,"%f",G->MaxLCap());
+- else sprintf(interp->result,"%ld",(long int)G->MaxLCap());
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(G->MaxLCap()));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(G->MaxLCap()));
+ }
+ else if (strcmp(argv[2],"-upperBound")==0)
+ {
+ if (G->MaxUCap()!=InfCap)
+ {
+ if (G->MaxUCap()!=(long int)(G->MaxUCap()))
+- sprintf(interp->result,"%f",G->MaxUCap());
+- else sprintf(interp->result,"%ld",(long int)G->MaxUCap());
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(G->MaxUCap()));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(G->MaxUCap()));
+ }
+- else interp->result = "*";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
+ }
+ else if (strcmp(argv[2],"-edgeLength")==0)
+ {
+ if (G->MaxLength()!=InfFloat)
+ {
+ if (G->MaxLength()!=(long int)(G->MaxLength()))
+- sprintf(interp->result,"%f",G->MaxLength());
+- else sprintf(interp->result,"%ld",(long int)G->MaxLength());
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(G->MaxLength()));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(G->MaxLength()));
+ }
+- else interp->result = "*";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
+ }
+ else
+ {
+- sprintf(interp->result,"Unknown graph attribute: %s",argv[2]);
++ Tcl_AppendResult(interp, "Unknown graph attribute: ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -3119,23 +3083,23 @@
+
+ if (strcmp(argv[2],"-nodeDemand")==0)
+ {
+- sprintf(interp->result,"%d",G->CDemand());
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(G->CDemand()));
+ }
+ else if (strcmp(argv[2],"-lowerBound")==0)
+ {
+- sprintf(interp->result,"%d",G->CLCap());
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(G->CLCap()));
+ }
+ else if (strcmp(argv[2],"-upperBound")==0)
+ {
+- sprintf(interp->result,"%d",G->CUCap());
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(G->CUCap()));
+ }
+ else if (strcmp(argv[2],"-edgeLength")==0)
+ {
+- sprintf(interp->result,"%d",G->CLength());
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(G->CLength()));
+ }
+ else
+ {
+- sprintf(interp->result,"Unknown graph attribute: %s",argv[2]);
++ Tcl_AppendResult(interp, "Unknown graph attribute: ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -3219,7 +3183,7 @@
+ }
+ else
+ {
+- sprintf(interp->result,"Unknown metric type: %s",argv[i+1]);
++ Tcl_AppendResult(interp, "Unknown metric type: ", argv[i+1], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -3229,17 +3193,15 @@
+ {
+ TArc a = (strcmp(argv[i+1],"*")!=0) ? TArc(atol(argv[i+1])) : NoArc;
+ G -> MarkExteriorFace(a);
+- interp->result = "";
+ return GOSH_OK;
+ }
+ else
+ {
+- sprintf(interp->result,"Unknown graph attribute: %s",argv[i]);
++ Tcl_AppendResult(interp, "Unknown graph attribute: ", argv[i], (char *)NULL);
+ return TCL_ERROR;
+ }
+ }
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -3248,7 +3210,7 @@
+ {
+ if (argc!=4)
+ {
+- interp->result = "Missing end nodes";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing end nodes", -1));
+ return TCL_ERROR;
+ }
+
+@@ -3256,8 +3218,8 @@
+ TNode v = (TArc)atol(argv[3]);
+ TArc a = G->Adjacency(u,v);
+
+- if (a==NoArc) interp->result = "*";
+- else sprintf(interp->result,"%lu",static_cast<unsigned long>(a));
++ if (a==NoArc) Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
++ else Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(a)));
+
+ return TCL_OK;
+ }
+@@ -3275,6 +3237,8 @@
+ int Goblin_Node_Cmd (abstractMixedGraph *G,Tcl_Interp* interp,int argc,
+ _CONST_QUAL_ char* argv[]) throw(ERRejected,ERRange)
+ {
++ Tcl_ResetResult(interp);
++
+ if (argc<3)
+ {
+ WrongNumberOfArguments(interp,argc,argv);
+@@ -3289,7 +3253,7 @@
+ return TCL_ERROR;
+ }
+
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(G->InsertNode()));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(G->InsertNode())));
+ return TCL_OK;
+ }
+
+@@ -3304,7 +3268,6 @@
+ if (strcmp(argv[3],"delete")==0)
+ {
+ G->DeleteNode(v);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -3313,62 +3276,58 @@
+ if (strcmp(argv[4],"-firstIncidence")==0)
+ {
+ if (G->First(v)!=NoArc)
+- {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(G->First(v)));
+- }
+- else interp->result = "*";
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(G->First(v))));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
+ }
+ else if (strcmp(argv[4],"-nodeDemand")==0)
+ {
+- sprintf(interp->result,"%g",static_cast<double>(G->Demand(v)));
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(static_cast<double>(G->Demand(v))));
+ }
+ else if (strcmp(argv[4],"-cx")==0)
+ {
+- sprintf(interp->result,"%f",static_cast<double>(G->C(v,0)));
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(static_cast<double>(G->C(v,0))));
+ }
+ else if (strcmp(argv[4],"-cy")==0)
+ {
+- sprintf(interp->result,"%f",static_cast<double>(G->C(v,1)));
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(static_cast<double>(G->C(v,1))));
+ }
+ else if (strcmp(argv[4],"-distance")==0)
+ {
+ if (G->Dist(v)!=InfFloat)
+- {
+- sprintf(interp->result,"%g",static_cast<double>(G->Dist(v)));
+- }
+- else interp->result = "*";
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(static_cast<double>(G->Dist(v))));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
+ }
+ else if (strcmp(argv[4],"-potential")==0)
+ {
+- sprintf(interp->result,"%g",static_cast<double>(G->Pi(v)));
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(static_cast<double>(G->Pi(v))));
+ }
+ else if (strcmp(argv[4],"-nodeColour")==0)
+ {
+ if (G->NodeColour(v)!=NoNode)
+- {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(G->NodeColour(v)));
+- }
+- else interp->result = "*";
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(G->NodeColour(v))));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
+ }
+ else if (strcmp(argv[4],"-predecessorArc")==0)
+ {
+ if (G->Pred(v)!=NoArc)
+- {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(G->Pred(v)));
+- }
+- else interp->result = "*";
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(G->Pred(v))));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
+ }
+ else if (strcmp(argv[4],"-degree")==0)
+ {
+- sprintf(interp->result,"%g",G->Deg(v));
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(G->Deg(v)));
+ }
+ else if (strcmp(argv[4],"-hidden")==0)
+ {
+- sprintf(interp->result,"%d",G->HiddenNode(v));
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(G->HiddenNode(v)));
+ }
+ else
+ {
+- sprintf(interp->result,"Unknown node attribute: %s",argv[4]);
++ Tcl_AppendResult(interp, "Unknown node attribute: ", argv[4], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -3383,7 +3342,7 @@
+ {
+ if (!G->IsSparse())
+ {
+- interp->result = "Operation applies to sparse graphs only";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Operation applies to sparse graphs only", -1));
+ return TCL_ERROR;
+ }
+
+@@ -3422,16 +3381,15 @@
+ }
+ else
+ {
+- sprintf(interp->result,"Unknown node attribute: %s",argv[i]);
++ Tcl_AppendResult(interp, "Unknown node attribute: ", argv[i], (char *)NULL);
+ return TCL_ERROR;
+ }
+ }
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: %s node %s",argv[0],argv[2]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[0], " node ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -3449,14 +3407,14 @@
+ {
+ if (argc!=5)
+ {
+- interp->result = "Missing end nodes";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing end nodes", -1));
+ return TCL_ERROR;
+ }
+
+ TNode u = TArc(atol(argv[3]));
+ TNode v = TArc(atol(argv[4]));
+
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(G->InsertArc(u,v)));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(G->InsertArc(u,v))));
+ return TCL_OK;
+ }
+
+@@ -3466,12 +3424,11 @@
+ {
+ if (!G->IsSparse())
+ {
+- interp->result = "Operation applies to sparse graphs only";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Operation applies to sparse graphs only", -1));
+ return TCL_ERROR;
+ }
+
+ static_cast<sparseRepresentation*>(G->Representation()) -> DeleteArc(a);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -3479,12 +3436,11 @@
+ {
+ if (!G->IsSparse())
+ {
+- interp->result = "Operation applies to sparse graphs only";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Operation applies to sparse graphs only", -1));
+ return TCL_ERROR;
+ }
+
+ static_cast<sparseRepresentation*>(G->Representation()) -> ContractArc(a);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -3492,12 +3448,11 @@
+ {
+ if (!G->IsSparse())
+ {
+- interp->result = "Operation applies to sparse graphs only";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Operation applies to sparse graphs only", -1));
+ return TCL_ERROR;
+ }
+
+ static_cast<sparseRepresentation*>(G->Representation()) -> ReleaseEdgeControlPoints(a);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -3505,12 +3460,11 @@
+ {
+ if (!G->IsSparse())
+ {
+- interp->result = "Operation applies to sparse graphs only";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Operation applies to sparse graphs only", -1));
+ return TCL_ERROR;
+ }
+
+ static_cast<sparseRepresentation*>(G->Representation()) -> FlipArc(a);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -3518,75 +3472,70 @@
+ {
+ if (strcmp(argv[4],"-righthandArc")==0)
+ {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(G->Right(a,G->StartNode(a))));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(G->Right(a,G->StartNode(a)))));
+ }
+ else if (strcmp(argv[4],"-endNode")==0)
+ {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(G->EndNode(a)));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(G->EndNode(a))));
+ }
+ else if (strcmp(argv[4],"-startNode")==0)
+ {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(G->StartNode(a)));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(G->StartNode(a))));
+ }
+ else if (strcmp(argv[4],"-directed")==0)
+ {
+- sprintf(interp->result,"%d",G->Orientation(a));
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(G->Orientation(a)));
+ }
+ else if (strcmp(argv[4],"-upperBound")==0)
+ {
+ if (G->UCap(a)!=InfCap)
+- {
+- sprintf(interp->result,"%g",static_cast<double>(G->UCap(a)));
+- }
+- else sprintf(interp->result,"*");
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(G->UCap(a)));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
+ }
+ else if (strcmp(argv[4],"-lowerBound")==0)
+ {
+- sprintf(interp->result,"%g",static_cast<double>(G->LCap(a)));
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(static_cast<double>(G->LCap(a))));
+ }
+ else if (strcmp(argv[4],"-edgeLength")==0)
+ {
+ if (G->Length(a)!=InfFloat)
+- {
+- sprintf(interp->result,"%g",static_cast<double>(G->Length(a)));
+- }
+- else interp->result = "*";
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(G->Length(a)));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
+ }
+ else if (strcmp(argv[4],"-edgeColour")==0)
+ {
+ if (G->EdgeColour(a)!=NoArc)
+- {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(G->EdgeColour(a)));
+- }
+- else interp->result = "*";
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(G->EdgeColour(a))));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
+ }
+ else if (strcmp(argv[4],"-subgraph")==0)
+ {
+- sprintf(interp->result,"%g",static_cast<double>(G->Sub(a)));
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(G->Sub(a)));
+ }
+ else if (strcmp(argv[4],"-labelAnchorPoint")==0)
+ {
+ if (G->ArcLabelAnchor(a)!=NoNode)
+- {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(G->ArcLabelAnchor(a)));
+- }
+- else interp->result = "*";
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(G->ArcLabelAnchor(a))));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
+ }
+ else if (strcmp(argv[4],"-portNode")==0)
+ {
+ if (G->PortNode(a)!=NoNode)
+- {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(G->PortNode(a)));
+- }
+- else interp->result = "*";
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(G->PortNode(a))));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
+ }
+ else if (strcmp(argv[4],"-hidden")==0)
+ {
+- sprintf(interp->result,"%d",G->HiddenArc(a));
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(G->HiddenArc(a)));
+ }
+ else
+ {
+- sprintf(interp->result,"Unknown node attribute: %s",argv[4]);
++ Tcl_AppendResult(interp, "Unknown node attribute: ", argv[4], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -3619,7 +3568,7 @@
+ {
+ if (!G->IsSparse())
+ {
+- interp->result = "Operation applies to sparse graphs only";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Operation applies to sparse graphs only", -1));
+ return TCL_ERROR;
+ }
+
+@@ -3644,12 +3593,11 @@
+ }
+ else
+ {
+- sprintf(interp->result,"Unknown arc attribute: %s",argv[i]);
++ Tcl_AppendResult(interp, "Unknown arc attribute: ", argv[i], (char *)NULL);
+ return TCL_ERROR;
+ }
+ }
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -3663,7 +3611,7 @@
+
+ if (!G->IsSparse())
+ {
+- interp->result = "Operation applies to sparse graphs only";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Operation applies to sparse graphs only", -1));
+ return TCL_ERROR;
+ }
+
+@@ -3671,20 +3619,20 @@
+
+ if (strcmp(argv[4],"-labelAnchorPoint")==0)
+ {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(GR->ProvideArcLabelAnchor(a)));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(GR->ProvideArcLabelAnchor(a))));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[4],"-portNode")==0)
+ {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(GR->ProvidePortNode(a)));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(GR->ProvidePortNode(a))));
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown layout point type: %s",argv[4]);
++ Tcl_AppendResult(interp, "Unknown layout point type: ", argv[4], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+- sprintf(interp->result,"Unknown option: %s arc %s",argv[0],argv[2]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[0], " arc ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+--- shell_src/goshLin.cpp.orig 2013-06-04 16:26:29.000000000 +0200
++++ shell_src/goshLin.cpp 2013-06-04 16:49:40.000000000 +0200
+@@ -16,6 +16,8 @@
+ int Goblin_Ilp_Cmd (ClientData clientData,Tcl_Interp* interp,
+ int argc,_CONST_QUAL_ char* argv[])
+ {
++ Tcl_ResetResult(interp);
++
+ mipInstance* XLP = reinterpret_cast<mipInstance*>(clientData);
+
+ if (setjmp(goblinThreadData[Goblin_MyThreadIndex()].jumpBuffer) != 0)
+@@ -27,14 +29,12 @@
+ if (argc==2 && strcmp(argv[1],"delete")==0)
+ {
+ Tcl_DeleteCommand(interp,argv[0]);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+ if (argc==2 && strcmp(argv[1],"reset")==0)
+ {
+ XLP -> ResetBasis();
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -59,7 +59,6 @@
+
+ XLP -> Write(argv[argc-1],f);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -74,7 +73,6 @@
+ if (strcmp(argv[2],"bas")==0 || strcmp(argv[2],"basis")==0)
+ {
+ XLP -> ReadBASFile(argv[3]);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -82,17 +80,15 @@
+ {
+ if (XLP->K()>0 || XLP->L()>0)
+ {
+- interp->result = "Instance must be initial";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Instance must be initial", -1));
+ return TCL_ERROR;
+ }
+
+ XLP -> ReadMPSFile(argv[3]);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: %s read %s",
+- argv[0],argv[2]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[0], " read ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -104,7 +100,7 @@
+ return TCL_ERROR;
+ }
+
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(XLP->K()));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(XLP->K())));
+ return TCL_OK;
+ }
+
+@@ -116,7 +112,7 @@
+ return TCL_ERROR;
+ }
+
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(XLP->L()));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(XLP->L())));
+ return TCL_OK;
+ }
+
+@@ -130,7 +126,7 @@
+
+ if (strcmp(argv[2],"-mipObject")==0)
+ {
+- interp->result = "1";
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(1));
+ return TCL_OK;
+ }
+
+@@ -149,8 +145,9 @@
+ mipFactory *theMipFactory = (mipFactory*)CT->pMipFactory;
+
+ if (theMipFactory->Orientation()==mipFactory::ROW_ORIENTED)
+- interp->result = "row";
+- else interp->result = "column";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("row", -1));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("column", -1));
+
+ return TCL_OK;
+ }
+@@ -164,10 +161,11 @@
+ }
+
+ if (XLP->ObjectSense()==managedObject::MAXIMIZE)
+- interp->result = "maximize";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("maximize", -1));
+ else if (XLP->ObjectSense()==managedObject::MINIMIZE)
+- interp->result = "minimize";
+- else interp->result = "flat";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("minimize", -1));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("flat", -1));
+
+ return TCL_OK;
+ }
+@@ -181,7 +179,6 @@
+ }
+
+ XLP -> SetObjectSense(managedObject::MAXIMIZE);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -194,7 +191,6 @@
+ }
+
+ XLP -> SetObjectSense(managedObject::MINIMIZE);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -207,7 +203,6 @@
+ }
+
+ XLP -> FlipObjectSense();
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -220,7 +215,6 @@
+ }
+
+ XLP -> SetObjectSense(managedObject::NO_OBJECTIVE);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -233,7 +227,6 @@
+ }
+
+ XLP -> Strip();
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -249,7 +242,6 @@
+ TIndex l = TIndex(atol(argv[3]));
+ TIndex nz = TIndex(atol(argv[4]));
+ XLP -> Resize(k,l,nz);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -263,7 +255,7 @@
+
+ TIndex i = TIndex(atol(argv[2]));
+ TIndex j = TIndex(atol(argv[3]));
+- sprintf(interp->result,"%g", XLP -> Coeff(i,j));
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(XLP -> Coeff(i,j)));
+ return TCL_OK;
+ }
+
+@@ -285,11 +277,11 @@
+
+ TIndex j = TIndex(atol(argv[3]));
+ TIndex i = TIndex(atol(argv[4]));
+- sprintf(interp->result,"%g", XLP->Tableau(j,i));
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(XLP->Tableau(j,i)));
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: %s tableau %s",argv[0],argv[2]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[0], " tableau ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -311,11 +303,11 @@
+
+ TIndex i = TIndex(atol(argv[3]));
+ TIndex j = TIndex(atol(argv[4]));
+- sprintf(interp->result,"%g", XLP->BaseInverse(i,j));
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(XLP->BaseInverse(i,j)));
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: %s inverse %s",argv[0],argv[2]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[0], " inverse ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -329,17 +321,17 @@
+
+ if (strcmp(argv[2],"primal")==0)
+ {
+- sprintf(interp->result,"%d",XLP->PrimalFeasible());
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(XLP->PrimalFeasible()));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[2],"dual")==0)
+ {
+- sprintf(interp->result,"%d",XLP->DualFeasible());
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(XLP->DualFeasible()));
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: %s feasible %s",argv[0],argv[2]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[0], " feasible ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -357,7 +349,6 @@
+ TIndex j = TIndex(atol(argv[4]));
+ TFloat a = TFloat(atof(argv[5]));
+ XLP -> SetCoeff(i,j,a);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -376,7 +367,6 @@
+ XLP -> SetIndex(i,j,mipInstance::UPPER);
+ else XLP -> SetIndex(i,j,mipInstance::LOWER);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+ }
+@@ -387,8 +377,10 @@
+ {
+ TRestr i = XLP-> PivotRow();
+
+- if (i==NoRestr) interp->result = "*";
+- else sprintf(interp->result,"%ld",i);
++ if (i==NoRestr)
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(i));
+
+ return TCL_OK;
+ }
+@@ -398,12 +390,12 @@
+ TRestr i = XLP-> PivotRow();
+ mipInstance::TLowerUpper tp = XLP-> PivotDirection();
+
+- if (i==NoRestr) interp->result = "";
+- else
++ if (i!=NoRestr)
+ {
+ if (tp==mipInstance::LOWER)
+- interp->result = "lower";
+- else interp->result = "upper";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("lower", -1));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("upper", -1));
+ }
+
+ return TCL_OK;
+@@ -413,8 +405,10 @@
+ {
+ TVar i =XLP-> PivotColumn();
+
+- if (i==NoVar) interp->result = "*";
+- else sprintf(interp->result,"%ld",i);
++ if (i==NoVar)
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(i));
+
+ return TCL_OK;
+ }
+@@ -433,7 +427,6 @@
+ if (strcmp(argv[4],"lower")==0) tp = mipInstance::LOWER;
+
+ XLP -> Pivot(i,j,tp);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -441,7 +434,7 @@
+ {
+ if (argc==2 || strcmp(argv[2],"primal")==0)
+ {
+- sprintf(interp->result,"%g", XLP->ObjVal());
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(XLP->ObjVal()));
+ return TCL_OK;
+ }
+
+@@ -453,11 +446,11 @@
+
+ if (strcmp(argv[2],"dual")==0)
+ {
+- interp->result = "Not implemented yet";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Not implemented yet", -1));
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: %s objective %s",argv[0],argv[2]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[0], " objective ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -472,32 +465,28 @@
+ if (strcmp(argv[2],"lp")==0)
+ {
+ XLP -> SolveLP();
+- interp->result = "";
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[2],"primal")==0)
+ {
+ XLP -> SolvePrimal();
+- interp->result = "";
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[2],"dual")==0)
+ {
+ XLP -> SolveDual();
+- interp->result = "";
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[2],"mixed")==0 || strcmp(argv[2],"mip")==0)
+ {
+ XLP -> SolveMIP();
+- interp->result = "";
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: %s solve %s",argv[0],argv[2]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[0], " solve ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -512,18 +501,16 @@
+ if (strcmp(argv[2],"primal")==0)
+ {
+ XLP -> StartPrimal();
+- interp->result = "";
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[2],"dual")==0)
+ {
+ XLP -> StartDual();
+- interp->result = "";
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: %s start %s",argv[0],argv[2]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[0], " start ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -541,7 +528,6 @@
+ Goblin_Ilp_Cmd,reinterpret_cast<ClientData>(YLP),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Ilp);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -559,7 +545,6 @@
+ Goblin_Ilp_Cmd,reinterpret_cast<ClientData>(YLP),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Ilp);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -577,7 +562,6 @@
+ Goblin_Ilp_Cmd,reinterpret_cast<ClientData>(YLP),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Ilp);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -618,7 +602,7 @@
+ TFloat l = TFloat(atof(argv[3]));
+ TFloat u = TFloat(atof(argv[4]));
+
+- sprintf(interp->result,"%ld",XLP->AddRestr(l,u));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(XLP->AddRestr(l,u)));
+ return TCL_OK;
+ }
+
+@@ -632,8 +616,10 @@
+
+ TRestr i = XLP->RestrIndex((char*)argv[3]);
+
+- if (i==NoRestr) interp->result = "*";
+- else sprintf(interp->result,"%ld",i);
++ if (i==NoRestr)
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(i));
+
+ return TCL_OK;
+ }
+@@ -643,51 +629,55 @@
+ if (strcmp(argv[3],"cancel")==0)
+ {
+ XLP -> DeleteRestr(i);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"ubound")==0)
+ {
+- if (XLP->UBound(i)==InfFloat) sprintf(interp->result,"*");
+- else sprintf(interp->result,"%g",XLP->UBound(i));
++ if (XLP->UBound(i)==InfFloat)
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(XLP->UBound(i)));
+
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"lbound")==0)
+ {
+- if (XLP->LBound(i)==-InfFloat) sprintf(interp->result,"*");
+- else sprintf(interp->result,"%g",XLP->LBound(i));
++ if (XLP->LBound(i)==-InfFloat)
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(XLP->LBound(i)));
+
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"label")==0)
+ {
+- sprintf(interp->result,"%s",
+- XLP->RestrLabel(i,managedObject::OWNED_BY_RECEIVER));
++ Tcl_SetObjResult(interp, Tcl_NewStringObj(XLP->RestrLabel(i,managedObject::OWNED_BY_RECEIVER), -1));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"type")==0)
+ {
+ if (XLP->RestrType(i)==mipInstance::NON_BASIC)
+- interp->result = "non_basic";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("non_basic", -1));
+ if (XLP->RestrType(i)==mipInstance::BASIC_UB)
+- interp->result = "upper";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("upper", -1));
+ if (XLP->RestrType(i)==mipInstance::BASIC_LB)
+- interp->result = "lower";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("lower", -1));
+ if (XLP->RestrType(i)==mipInstance::RESTR_CANCELED)
+- interp->result = "canceled";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("canceled", -1));
+
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"index")==0)
+ {
+- if (XLP->RevIndex(i)==NoIndex) sprintf(interp->result,"*");
+- else sprintf(interp->result,"%ld",XLP->RevIndex(i));
++ if (XLP->RevIndex(i)==NoIndex)
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(XLP->RevIndex(i)));
+
+ return TCL_OK;
+ }
+@@ -702,18 +692,25 @@
+
+ if (strcmp(argv[4],"lower")==0)
+ {
+- sprintf(interp->result,"%g",XLP->Y(i,mipInstance::LOWER));
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(XLP->Y(i,mipInstance::LOWER)));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[4],"upper")==0)
+ {
+- sprintf(interp->result,"%g",XLP->Y(i,mipInstance::UPPER));
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(XLP->Y(i,mipInstance::UPPER)));
+ return TCL_OK;
+ }
+
++#if TCL_MAJOR_VERSION > 8 || (TCL_MAJOR_VERSION == 8 && TCL_MINOR_VERSION > 5)
++ Tcl_Obj *resObj = Tcl_NewObj();
++ Tcl_AppendPrintfToObj(resObj, "Unknown option: %s row %ld value %s",
++ argv[0],i,argv[4]);
++ Tcl_SetObjResult(interp, resObj);
++#else
+ sprintf(interp->result,"Unknown option: %s row %ld value %s",
+ argv[0],i,argv[4]);
++#endif
+ return TCL_ERROR;
+ }
+
+@@ -727,18 +724,25 @@
+
+ if (strcmp(argv[4],"lower")==0)
+ {
+- sprintf(interp->result,"%g",XLP->Slack(i,mipInstance::LOWER));
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(XLP->Slack(i,mipInstance::LOWER)));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[4],"upper")==0)
+ {
+- sprintf(interp->result,"%g",XLP->Slack(i,mipInstance::UPPER));
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(XLP->Slack(i,mipInstance::UPPER)));
+ return TCL_OK;
+ }
+
++#if TCL_MAJOR_VERSION > 8 || (TCL_MAJOR_VERSION == 8 && TCL_MINOR_VERSION > 5)
++ Tcl_Obj *resObj = Tcl_NewObj();
++ Tcl_AppendPrintfToObj(resObj, "Unknown option: %s rebound %ld value %s",
++ argv[0],i,argv[4]);
++ Tcl_SetObjResult(interp, resObj);
++#else
+ sprintf(interp->result,"Unknown option: %s redbound %ld value %s",
+ argv[0],i,argv[4]);
++#endif
+ return TCL_ERROR;
+ }
+
+@@ -757,7 +761,6 @@
+ if (strcmp(argv[5],"*")!=0) uu = TFloat(atof(argv[5]));
+
+ XLP -> SetUBound(i,uu);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -768,22 +771,20 @@
+ if (strcmp(argv[5],"*")!=0) ll = TFloat(atof(argv[5]));
+
+ XLP -> SetLBound(i,ll);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[4],"label")==0)
+ {
+ XLP -> SetRestrLabel(i,(char*)argv[5],managedObject::OWNED_BY_SENDER);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: %s row %s set %s",argv[0],argv[2],argv[4]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[0], " row ", argv[2], " set ", argv[4], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+- sprintf(interp->result,"Unknown option: %s row %s",argv[0],argv[2]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[0], " row ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -815,12 +816,12 @@
+ {
+ if (strcmp(argv[3],"float")!=0)
+ {
+- interp->result = "Unknown variable type";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Unknown variable type", -1));
+ return TCL_ERROR;
+ }
+ }
+
+- sprintf(interp->result,"%ld",XLP->AddVar(l,u,tp));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(XLP->AddVar(l,u,tp)));
+ return TCL_OK;
+ }
+
+@@ -834,8 +835,10 @@
+
+ TVar i = XLP->VarIndex((char*)argv[3]);
+
+- if (i==NoVar) interp->result = "*";
+- else sprintf(interp->result,"%ld",i);
++ if (i==NoVar)
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(i));
+
+ return TCL_OK;
+ }
+@@ -845,14 +848,15 @@
+ if (strcmp(argv[3],"cancel")==0)
+ {
+ XLP -> DeleteVar(i);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"urange")==0)
+ {
+- if (XLP->URange(i)==InfFloat) sprintf(interp->result,"*");
+- else sprintf(interp->result,"%g",XLP->URange(i));
++ if (XLP->URange(i)==InfFloat)
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(XLP->URange(i)));
+
+ return TCL_OK;
+ }
+@@ -860,46 +864,47 @@
+
+ if (strcmp(argv[3],"lrange")==0)
+ {
+- if (XLP->LRange(i)==-InfFloat) sprintf(interp->result,"*");
+- else sprintf(interp->result,"%g",XLP->LRange(i));
++ if (XLP->LRange(i)==-InfFloat)
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("*", -1));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(XLP->LRange(i)));
+
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"cost")==0)
+ {
+- sprintf(interp->result,"%g",XLP->Cost(i));
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(XLP->Cost(i)));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"type")==0)
+ {
+ if (XLP->VarType(i)==mipInstance::VAR_INT)
+- interp->result = "integer";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("integer", -1));
+ if (XLP->VarType(i)==mipInstance::VAR_FLOAT)
+- interp->result = "float";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("float", -1));
+ if (XLP->VarType(i)==mipInstance::VAR_CANCELED)
+- interp->result = "canceled";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("canceled", -1));
+
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"label")==0)
+ {
+- sprintf(interp->result,"%s",
+- XLP->VarLabel(i,managedObject::OWNED_BY_RECEIVER));
++ Tcl_SetObjResult(interp, Tcl_NewStringObj(XLP->VarLabel(i,managedObject::OWNED_BY_RECEIVER), -1));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"index")==0)
+ {
+- sprintf(interp->result,"%ld",XLP->Index(i));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(XLP->Index(i)));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"value")==0)
+ {
+- sprintf(interp->result,"%g",XLP->X(i));
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(XLP->X(i)));
+ return TCL_OK;
+ }
+
+@@ -908,18 +913,16 @@
+ if (strcmp(argv[4],"int")==0 || strcmp(argv[4],"integer")==0)
+ {
+ XLP -> SetVarType(i,mipInstance::VAR_INT);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[4],"float")==0)
+ {
+ XLP -> SetVarType(i,mipInstance::VAR_FLOAT);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: %s variable %s mark %s",argv[0],argv[2],argv[4]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[0], " variable ", argv[2], " mark ", argv[4], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -938,7 +941,6 @@
+ if (strcmp(argv[5],"*")!=0) uu = TFloat(atof(argv[5]));
+
+ XLP -> SetURange(i,uu);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -947,7 +949,6 @@
+ TFloat ll = -InfFloat;
+ if (strcmp(argv[5],"*")!=0) ll = TFloat(atof(argv[5]));
+ XLP -> SetLRange(i,ll);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -955,22 +956,20 @@
+ {
+ TFloat cc = TFloat(atof(argv[5]));
+ XLP -> SetCost(i,cc);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[4],"label")==0)
+ {
+ XLP -> SetVarLabel(i,(char*)argv[5],managedObject::OWNED_BY_SENDER);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: %s variable %s set %s",argv[0],argv[2],argv[4]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[0], " variable ", argv[2], " set ", argv[4], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+- sprintf(interp->result,"Unknown option: %s variable %s",argv[0],argv[2]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[0], " variable ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+--- shell_src/goshMain.cpp.orig 2013-06-04 17:06:23.000000000 +0200
++++ shell_src/goshMain.cpp 2013-06-04 17:26:19.000000000 +0200
+@@ -298,7 +298,7 @@
+
+ if (Tcl_EvalFile(interp2,(char*)scriptName)==TCL_ERROR)
+ {
+- sprintf(CT->logBuffer,"...Thread exit status: %s",interp2->result);
++ sprintf(CT->logBuffer,"...Thread exit status: %s",Tcl_GetStringResult(interp2));
+ CT -> LogEntry(LOG_IO,NoHandle,CT->logBuffer);
+ }
+
+@@ -337,6 +337,8 @@
+ int Goblin_Cmd (ClientData clientData,Tcl_Interp* interp,int argc,
+ _CONST_QUAL_ char* argv[])
+ {
++ Tcl_ResetResult(interp);
++
+ if (argc<2)
+ {
+ WrongNumberOfArguments(interp,argc,argv);
+@@ -366,7 +368,6 @@
+ Goblin_Mixed_Graph_Cmd,reinterpret_cast<ClientData>(G),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Mixed_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -384,7 +385,6 @@
+ Goblin_Sparse_Graph_Cmd,reinterpret_cast<ClientData>(G),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -410,7 +410,6 @@
+ Goblin_Sparse_Bigraph_Cmd,reinterpret_cast<ClientData>(G),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Bigraph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -428,7 +427,6 @@
+ Goblin_Sparse_Digraph_Cmd,reinterpret_cast<ClientData>(G),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Digraph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -446,7 +444,6 @@
+ Goblin_Dense_Graph_Cmd,reinterpret_cast<ClientData>(G),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Dense_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -470,7 +467,6 @@
+ Goblin_Dense_Bigraph_Cmd,reinterpret_cast<ClientData>(G),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Dense_Bigraph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -488,7 +484,6 @@
+ Goblin_Dense_Digraph_Cmd,reinterpret_cast<ClientData>(G),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Dense_Digraph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -539,7 +534,6 @@
+ Goblin_Sparse_Graph_Cmd,reinterpret_cast<ClientData>(G),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -589,7 +583,6 @@
+ Goblin_Sparse_Graph_Cmd,reinterpret_cast<ClientData>(G),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -676,7 +669,6 @@
+ Goblin_Sparse_Graph_Cmd,reinterpret_cast<ClientData>(G),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -739,7 +731,6 @@
+ Goblin_Sparse_Graph_Cmd,reinterpret_cast<ClientData>(G),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -755,7 +746,6 @@
+ Goblin_Sparse_Graph_Cmd,reinterpret_cast<ClientData>(G),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -773,7 +763,6 @@
+ Goblin_Sparse_Graph_Cmd,reinterpret_cast<ClientData>(G),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -795,7 +784,6 @@
+ Goblin_Sparse_Digraph_Cmd,reinterpret_cast<ClientData>(G),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Digraph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -818,7 +806,6 @@
+ Goblin_Sparse_Digraph_Cmd,reinterpret_cast<ClientData>(G),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Digraph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -836,7 +823,6 @@
+ Goblin_Sparse_Digraph_Cmd,reinterpret_cast<ClientData>(G),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Digraph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -851,7 +837,6 @@
+ Goblin_Sparse_Graph_Cmd,reinterpret_cast<ClientData>(G),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -866,7 +851,6 @@
+ Goblin_Sparse_Graph_Cmd,reinterpret_cast<ClientData>(G),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -881,7 +865,6 @@
+ Goblin_Sparse_Graph_Cmd,reinterpret_cast<ClientData>(G),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -921,7 +904,6 @@
+ Goblin_Sparse_Graph_Cmd,reinterpret_cast<ClientData>(G),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -937,7 +919,6 @@
+ Goblin_Sparse_Graph_Cmd,reinterpret_cast<ClientData>(G),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -962,7 +943,6 @@
+ Goblin_Sparse_Graph_Cmd,reinterpret_cast<ClientData>(G),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -980,7 +960,6 @@
+ Goblin_Sparse_Graph_Cmd,reinterpret_cast<ClientData>(G),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Sparse_Graph);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -990,7 +969,7 @@
+ {
+ if (goblinController::pMipFactory==NULL)
+ {
+- interp->result = "No LP solver loaded";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("No LP solver loaded", -1));
+ return TCL_ERROR;
+ }
+
+@@ -1016,7 +995,6 @@
+ Goblin_Ilp_Cmd,reinterpret_cast<ClientData>(XLP),
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Ilp);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1054,7 +1032,7 @@
+
+ if (!X)
+ {
+- interp->result = "Unknown format specification";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Unknown format specification", -1));
+ return TCL_ERROR;
+ }
+
+@@ -1141,7 +1119,6 @@
+ (Tcl_CmdDeleteProc *)Goblin_Delete_Mixed_Graph);
+ }
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1162,13 +1139,12 @@
+ Tcl_CreateCommand(interp,const_cast<char*>(argv[2]),
+ Goblin_Ilp_Cmd,reinterpret_cast<ClientData>(Y),NULL);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+ if (!X->IsGraphObject())
+ {
+- sprintf(interp->result,"Not a graph object ID: %s",argv[3]);
++ Tcl_AppendResult(interp, "Not a graph object ID: ", argv[3], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -1179,7 +1155,6 @@
+ Tcl_CreateCommand(interp,const_cast<char*>(argv[2]),
+ Goblin_Mixed_Graph_Cmd,reinterpret_cast<ClientData>(Y),NULL);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1190,7 +1165,6 @@
+ Tcl_CreateCommand(interp,const_cast<char*>(argv[2]),
+ Goblin_Sparse_Graph_Cmd,reinterpret_cast<ClientData>(Y),NULL);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1201,7 +1175,6 @@
+ Tcl_CreateCommand(interp,const_cast<char*>(argv[2]),
+ Goblin_Dense_Graph_Cmd,reinterpret_cast<ClientData>(Y),NULL);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1212,7 +1185,6 @@
+ Tcl_CreateCommand(interp,const_cast<char*>(argv[2]),
+ Goblin_Sparse_Bigraph_Cmd,reinterpret_cast<ClientData>(Y),NULL);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1223,7 +1195,6 @@
+ Tcl_CreateCommand(interp,const_cast<char*>(argv[2]),
+ Goblin_Dense_Bigraph_Cmd,reinterpret_cast<ClientData>(Y),NULL);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1234,7 +1205,6 @@
+ Tcl_CreateCommand(interp,const_cast<char*>(argv[2]),
+ Goblin_Sparse_Digraph_Cmd,reinterpret_cast<ClientData>(Y),NULL);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1245,7 +1215,6 @@
+ Tcl_CreateCommand(interp,const_cast<char*>(argv[2]),
+ Goblin_Dense_Digraph_Cmd,reinterpret_cast<ClientData>(Y),NULL);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1256,11 +1225,10 @@
+ Tcl_CreateCommand(interp,const_cast<char*>(argv[2]),
+ Goblin_Balanced_FNW_Cmd,reinterpret_cast<ClientData>(Y),NULL);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+- interp->result = "Unknown object type";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Unknown object type", -1));
+ return TCL_ERROR;
+ }
+
+@@ -1293,7 +1261,7 @@
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: goblin export %s",argv[2]);
++ Tcl_AppendResult(interp, "Unknown option: goblin export ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -1316,7 +1284,6 @@
+ else CT->LogEntry(MSG_ECHO,NoHandle,(char*)argv[2]);
+ }
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1334,7 +1301,7 @@
+
+ if (threadIndex>=MAX_NUM_THREADS)
+ {
+- interp->result = "No more thread handle available";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("No more thread handle available", -1));
+ return TCL_ERROR;
+ }
+
+@@ -1344,7 +1311,6 @@
+ pthread_create(&goblinThreadData[threadIndex].threadID,
+ NULL,Goblin_Thread,(void*)scriptName);
+
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1360,7 +1326,6 @@
+
+ sprintf(returnCode,"%s",argv[3]);
+ errorCode = TCL_OK;
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1376,7 +1341,6 @@
+
+ sprintf(returnCode,"%s",argv[3]);
+ errorCode = TCL_ERROR;
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1389,15 +1353,15 @@
+ if (strcmp(argv[2],"stop")==0)
+ {
+ MSG -> SolverSignalStop();
+- interp->result = "";
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[2],"idle")==0)
+ {
+ if (MSG->SolverIdle())
+- interp->result = "1";
+- else interp->result = "0";
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(1));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(0));
+
+ return TCL_OK;
+ }
+@@ -1405,8 +1369,9 @@
+ if (strcmp(argv[2],"running")==0)
+ {
+ if (MSG->SolverRunning())
+- interp->result = "1";
+- else interp->result = "0";
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(1));
++ else
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(0));
+
+ return TCL_OK;
+ }
+@@ -1421,19 +1386,18 @@
+ {
+ #if defined(_PROGRESS_)
+
+- sprintf(interp->result,"%g",
+- static_cast<double>(CT->ProgressCounter()));
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(static_cast<double>(CT->ProgressCounter())));
+
+ #else
+
+- interp->result = "1.0";
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(1.0));
+
+ #endif
+
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: goblin solver %s",argv[2]);
++ Tcl_AppendResult(interp, "Unknown option: goblin solver ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -1450,12 +1414,14 @@
+ try
+ {
+ unsigned long lineNumber = atol(argv[3]);
+- MSG->GetLineByNumber(transscriptName,interp->result, TCL_RESULT_SIZE,lineNumber);
++ const char *s = Tcl_GetStringResult(interp);
++ size_t slen = strlen(s);
++ MSG->GetLineByNumber(transscriptName,(char *)s,slen,lineNumber);
+ return TCL_OK;
+ }
+ catch (ERRejected)
+ {
+- interp->result = "Could not access transcript file";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Could not access transcript file", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -1466,12 +1432,11 @@
+ {
+ unsigned long lineNumber = atol(argv[3]);
+ MSG->LoadBuffer(transscriptName,lineNumber);
+- interp->result = "";
+ return TCL_OK;
+ }
+ catch (ERRejected)
+ {
+- interp->result = "Could not access transcript file";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Could not access transcript file", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -1484,39 +1449,37 @@
+
+ if (strcmp(argv[2],"#bufferSize")==0)
+ {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(MSG->GetBufferSize()));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(MSG->GetBufferSize())));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[2],"#numLines")==0)
+ {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(MSG->GetNumLines(transscriptName)));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(MSG->GetNumLines(transscriptName))));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[2],"restart")==0)
+ {
+ MSG -> Restart();
+- interp->result = "";
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[2],"reset")==0)
+ {
+ MSG -> MsgReset();
+- interp->result = "";
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[2],"eof")==0)
+ {
+- interp->result = const_cast<char*>((MSG->MsgEndOfBuffer()) ? "1" : "0");
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(MSG->MsgEndOfBuffer() ? 1 : 0));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[2],"void")==0)
+ {
+- interp->result = const_cast<char*>((MSG->MsgVoid()) ? "1" : "0");
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(MSG->MsgVoid() ? 1 : 0));
+ return TCL_OK;
+ }
+
+@@ -1525,12 +1488,11 @@
+ try
+ {
+ MSG -> MsgSkip();
+- interp->result = "";
+ return TCL_OK;
+ }
+ catch (ERRejected)
+ {
+- interp->result = "Message queue is empty";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Message queue is empty", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -1539,12 +1501,13 @@
+ {
+ try
+ {
+- MSG->MsgText(interp->result, TCL_RESULT_SIZE);
++ const char *s = Tcl_GetStringResult(interp);
++ MSG->MsgText((char *)s, strlen(s));
+ return TCL_OK;
+ }
+ catch (ERRejected)
+ {
+- interp->result = "Message queue is empty";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Message queue is empty", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -1554,12 +1517,12 @@
+ try
+ {
+ msgType ret = MSG->MsgClass();
+- sprintf(interp->result,"%d",ret);
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(ret));
+ return TCL_OK;
+ }
+ catch (ERRejected)
+ {
+- interp->result = "Message queue is empty";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Message queue is empty", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -1569,12 +1532,12 @@
+ try
+ {
+ TModule ret = MSG->MsgModule();
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(ret));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(ret)));
+ return TCL_OK;
+ }
+ catch (ERRejected)
+ {
+- interp->result = "Message queue is empty";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Message queue is empty", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -1584,12 +1547,12 @@
+ try
+ {
+ THandle ret = MSG->MsgHandle();
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(ret));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(ret)));
+ return TCL_OK;
+ }
+ catch (ERRejected)
+ {
+- interp->result = "Message queue is empty";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Message queue is empty", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -1599,12 +1562,12 @@
+ try
+ {
+ int ret = MSG->MsgLevel();
+- sprintf(interp->result,"%d",ret);
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(ret));
+ return TCL_OK;
+ }
+ catch (ERRejected)
+ {
+- interp->result = "Message queue is empty";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Message queue is empty", -1));
+ return TCL_ERROR;
+ }
+ }
+@@ -1617,16 +1580,18 @@
+ return TCL_ERROR;
+ }
+
+- size_t numChars = MSG->TraceFilename(interp->result, TCL_RESULT_SIZE);
++ const char *s = Tcl_GetStringResult(interp);
++ size_t slen = strlen(s);
++ size_t numChars = MSG->TraceFilename((char *)s, slen);
+
+ if (numChars==0)
+ {
+- interp->result = "Tcl result size overflow";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Tcl result size overflow", -1));
+ return TCL_ERROR;
+ }
+- else if (numChars>=TCL_RESULT_SIZE)
++ else if (numChars>=slen)
+ {
+- interp->result = "No more queued trace files";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("No more queued trace files", -1));
+ return TCL_ERROR;
+ }
+
+@@ -1635,25 +1600,23 @@
+
+ if (strcmp(argv[2],"blocked")==0)
+ {
+- interp->result = const_cast<char*>((MSG->TraceEvent()) ? "1" : "0");
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(MSG->TraceEvent() ? 1 : 0));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[2],"unblock")==0)
+ {
+ MSG -> TraceUnblock();
+- interp->result = "";
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: goblin messenger %s",argv[2]);
++ Tcl_AppendResult(interp, "Unknown option: goblin messenger ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+ if (strcmp(argv[1],"configure")==0)
+ {
+ CT->Configure(argc,(const char**)argv);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1670,7 +1633,6 @@
+ if (strcmp(argv[2],"reset")==0)
+ {
+ CT -> ResetTimers();
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -1678,7 +1640,7 @@
+
+ if (i>=NoTimer)
+ {
+- sprintf(interp->result,"No such timer: %u",i);
++ Tcl_AppendResult(interp, "No such timer: ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -1694,12 +1656,11 @@
+
+ if (j>=NoTimer)
+ {
+- sprintf(interp->result,"No such Timer: %u",j);
++ Tcl_AppendResult(interp, "No such timer: ", argv[4], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+- sprintf(interp->result,"%g",
+- static_cast<double>(CT->globalTimer[i]->ChildTime(TTimer(j))));
++ Tcl_SetObjResult(interp, Tcl_NewDoubleObj(static_cast<double>(CT->globalTimer[i]->ChildTime(TTimer(j)))));
+ return TCL_OK;
+ }
+
+@@ -1712,67 +1673,58 @@
+ if (strcmp(argv[3],"reset")==0)
+ {
+ CT -> globalTimer[i] -> Reset();
+- interp->result = "";
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"enable")==0)
+ {
+ CT -> globalTimer[i] -> Enable();
+- interp->result = "";
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"disable")==0)
+ {
+ CT -> globalTimer[i] -> Disable();
+- interp->result = "";
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"label")==0)
+ {
+- sprintf(interp->result,"%s",
+- listOfTimers[i].timerName);
++ Tcl_SetObjResult(interp, Tcl_NewStringObj(listOfTimers[i].timerName, -1));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"acc")==0)
+ {
+- sprintf(interp->result,"%lu",
+- static_cast<unsigned long>(CT->globalTimer[i]->AccTime()));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(CT->globalTimer[i]->AccTime())));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"av")==0)
+ {
+- sprintf(interp->result,"%lu",
+- static_cast<unsigned long>(CT->globalTimer[i]->AvTime()));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(CT->globalTimer[i]->AvTime())));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"max")==0)
+ {
+- sprintf(interp->result,"%lu",
+- static_cast<unsigned long>(CT->globalTimer[i]->MaxTime()));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(CT->globalTimer[i]->MaxTime())));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"min")==0)
+ {
+- sprintf(interp->result,"%lu",
+- static_cast<unsigned long>(CT->globalTimer[i]->MinTime()));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(CT->globalTimer[i]->MinTime())));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"prev")==0)
+ {
+- sprintf(interp->result,"%lu",
+- static_cast<unsigned long>(CT->globalTimer[i]->PrevTime()));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(CT->globalTimer[i]->PrevTime())));
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: goblin timer <index> %s",argv[3]);
++ Tcl_AppendResult(interp, "Unknown option: goblin timer <index> ", argv[3], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -1790,71 +1742,65 @@
+
+ if (i>=NoModule)
+ {
+- sprintf(interp->result,"No such module: %d",i);
++ Tcl_AppendResult(interp, "No such module: ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+ if (strcmp(argv[3],"name")==0)
+ {
+- sprintf(interp->result,"%s",listOfModules[i].moduleName);
++ Tcl_SetObjResult(interp, Tcl_NewStringObj(listOfModules[i].moduleName, -1));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"timer")==0)
+ {
+- sprintf(interp->result,"%lu",
+- static_cast<unsigned long>(listOfModules[i].moduleTimer));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(listOfModules[i].moduleTimer)));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"implementor1")==0)
+ {
+- sprintf(interp->result,"%lu",
+- static_cast<unsigned long>(listOfModules[i].implementor1));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(listOfModules[i].implementor1)));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"implementor2")==0)
+ {
+- sprintf(interp->result,"%lu",
+- static_cast<unsigned long>(listOfModules[i].implementor2));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(listOfModules[i].implementor2)));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"encoding_date")==0)
+ {
+- sprintf(interp->result,"%s",listOfModules[i].encodingDate);
++ Tcl_SetObjResult(interp, Tcl_NewStringObj(listOfModules[i].encodingDate, -1));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"revision_date")==0)
+ {
+- sprintf(interp->result,"%s",listOfModules[i].revisionDate);
++ Tcl_SetObjResult(interp, Tcl_NewStringObj(listOfModules[i].revisionDate, -1));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"original_reference")==0)
+ {
+- sprintf(interp->result,"%lu",
+- static_cast<unsigned long>(listOfModules[i].originalReference));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(listOfModules[i].originalReference)));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"authors_reference")==0)
+ {
+- sprintf(interp->result,"%lu",
+- static_cast<unsigned long>(listOfModules[i].authorsReference));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(listOfModules[i].authorsReference)));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"text_book")==0)
+ {
+- sprintf(interp->result,"%lu",
+- static_cast<unsigned long>(listOfModules[i].textBook));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(listOfModules[i].textBook)));
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: goblin module <index> %s",argv[3]);
++ Tcl_AppendResult(interp, "Unknown option: goblin module <index> ", argv[3], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -1870,29 +1816,29 @@
+
+ if (i>=NoAuthor)
+ {
+- sprintf(interp->result,"No such author: %d",i);
++ Tcl_AppendResult(interp, "No such author: ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+ if (strcmp(argv[3],"name")==0)
+ {
+- sprintf(interp->result,"%s",listOfAuthors[i].name);
++ Tcl_SetObjResult(interp, Tcl_NewStringObj(listOfAuthors[i].name, -1));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"affiliation")==0)
+ {
+- sprintf(interp->result,"%s",listOfAuthors[i].affiliation);
++ Tcl_SetObjResult(interp, Tcl_NewStringObj(listOfAuthors[i].affiliation, -1));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"e_mail")==0)
+ {
+- sprintf(interp->result,"%s",listOfAuthors[i].e_mail);
++ Tcl_SetObjResult(interp, Tcl_NewStringObj(listOfAuthors[i].e_mail, -1));
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: goblin author <index> %s",argv[3]);
++ Tcl_AppendResult(interp, "Unknown option: goblin author <index> ", argv[3], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -1908,67 +1854,65 @@
+
+ if (i>=NoReference)
+ {
+- sprintf(interp->result,"No such reference: %d",i);
++ Tcl_AppendResult(interp, "No such reference: ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+ if (strcmp(argv[3],"key")==0)
+ {
+- sprintf(interp->result,"%s",listOfReferences[i].refKey);
++ Tcl_SetObjResult(interp, Tcl_NewStringObj(listOfReferences[i].refKey, -1));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"authors")==0)
+ {
+- sprintf(interp->result,"%s",listOfReferences[i].authors);
++ Tcl_SetObjResult(interp, Tcl_NewStringObj(listOfReferences[i].authors, -1));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"title")==0)
+ {
+- sprintf(interp->result,"%s",listOfReferences[i].title);
++ Tcl_SetObjResult(interp, Tcl_NewStringObj(listOfReferences[i].title, -1));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"type")==0)
+ {
+- sprintf(interp->result,"%s",listOfReferences[i].type);
++ Tcl_SetObjResult(interp, Tcl_NewStringObj(listOfReferences[i].type, -1));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"collection")==0)
+ {
+- sprintf(interp->result,"%s",listOfReferences[i].collection);
++ Tcl_SetObjResult(interp, Tcl_NewStringObj(listOfReferences[i].collection, -1));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"editors")==0)
+ {
+- sprintf(interp->result,"%s",listOfReferences[i].editors);
++ Tcl_SetObjResult(interp, Tcl_NewStringObj(listOfReferences[i].editors, -1));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"volume")==0)
+ {
+- sprintf(interp->result,"%lu",
+- static_cast<unsigned long>(listOfReferences[i].volume));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(listOfReferences[i].volume)));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"publisher")==0)
+ {
+- sprintf(interp->result,"%s",listOfReferences[i].publisher);
++ Tcl_SetObjResult(interp, Tcl_NewStringObj(listOfReferences[i].publisher, -1));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[3],"year")==0)
+ {
+- sprintf(interp->result,"%lu",
+- static_cast<unsigned long>(listOfReferences[i].year));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(listOfReferences[i].year)));
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: goblin reference <index> %s",argv[3]);
++ Tcl_AppendResult(interp, "Unknown option: goblin reference <index> ", argv[3], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -1982,31 +1926,31 @@
+
+ if (strcmp(argv[1],"size")==0)
+ {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(goblinHeapSize));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(goblinHeapSize)));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[1],"maxsize")==0)
+ {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(goblinMaxSize));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(goblinMaxSize)));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[1],"#allocs")==0)
+ {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(goblinNAllocs));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(goblinNAllocs)));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[1],"#objects")==0)
+ {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(goblinNObjects));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(goblinNObjects)));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[1],"#fragments")==0)
+ {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(goblinNFragments));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(goblinNFragments)));
+ return TCL_OK;
+ }
+
+@@ -2014,25 +1958,25 @@
+
+ if (strcmp(argv[1],"#timers")==0)
+ {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(NoTimer));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(NoTimer)));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[1],"#authors")==0)
+ {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(NoAuthor));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(NoAuthor)));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[1],"#modules")==0)
+ {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(NoModule));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(NoModule)));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[1],"#references")==0)
+ {
+- sprintf(interp->result,"%lu",static_cast<unsigned long>(NoReference));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(static_cast<unsigned long>(NoReference)));
+ return TCL_OK;
+ }
+
+@@ -2044,7 +1988,6 @@
+ CT->logStream = new ofstream(transscriptName);
+ MSG -> Restart();
+
+- interp->result = "";
+ return TCL_OK;
+ }
+ }
+@@ -2053,7 +1996,7 @@
+ return Goblin_Propagate_Exception(interp);
+ }
+
+- sprintf(interp->result,"Unknown option: goblin %s",argv[1]);
++ Tcl_AppendResult(interp, "Unknown option: goblin ", argv[1], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -2083,9 +2026,11 @@
+ int Goblin_Generic_Cmd (managedObject *X,Tcl_Interp* interp,int argc,
+ _CONST_QUAL_ char* argv[]) throw(ERRejected,ERRange)
+ {
++ Tcl_ResetResult(interp);
++
+ if (argc<2)
+ {
+- interp->result = "Missing arguments";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing arguments", -1));
+ return TCL_ERROR;
+ }
+
+@@ -2098,7 +2043,6 @@
+ }
+
+ CT -> SetMaster(X->Handle());
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -2110,7 +2054,7 @@
+ return TCL_ERROR;
+ }
+
+- sprintf(interp->result,"%ld",X->Handle());
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(X->Handle()));
+ return TCL_OK;
+ }
+
+@@ -2123,7 +2067,6 @@
+ }
+
+ X -> Display();
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -2144,11 +2087,11 @@
+ strcmp(argv[2],"-balanced")==0
+ )
+ {
+- interp->result = "0";
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(0));
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown object attribute: %s",argv[2]);
++ Tcl_AppendResult(interp, "Unknown object attribute: ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -2163,11 +2106,10 @@
+ if (strcmp(argv[2],"name")==0)
+ {
+ X -> SetLabel((char*)argv[3]);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: %s set %s",argv[0],argv[2]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[0], " set ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -2186,46 +2128,43 @@
+ if (argc>4) opt = atol(argv[4]);
+
+ X -> ExportToAscii(argv[3],opt);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[2],"goblet")==0 || strcmp(argv[2],"tk")==0)
+ {
+ X -> ExportToTk(argv[3]);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[2],"xfig")==0)
+ {
+ X -> ExportToXFig(argv[3]);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[2],"dot")==0)
+ {
+ X -> ExportToDot(argv[3]);
+- interp->result = "";
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown export format: %s",argv[2]);
++ Tcl_AppendResult(interp, "Unknown export format: ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+- sprintf(interp->result,"Unknown option: %s",argv[1]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[1], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+
+ int Goblin_Propagate_Exception (Tcl_Interp* interp) throw()
+ {
++ Tcl_ResetResult(interp);
++
+ if (CT->savedErrorMsgType != NO_MSG)
+ {
+- sprintf(interp->result,"%s - %s",
+- CT->savedErrorMethodName,CT->savedErrorDescription);
++ Tcl_AppendResult(interp, CT->savedErrorMethodName, " - ", CT->savedErrorDescription, (char *)NULL);
+
+ CT->savedErrorMsgType = NO_MSG;
+ }
+@@ -2233,7 +2172,7 @@
+ {
+ CT->Error(MSG_WARN,NoHandle,"Goblin_Propagate_Exception",
+ "An unknown exception has occured");
+- sprintf(interp->result,"An unknown exception has occured");
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("An unknown exception has occured", -1));
+ }
+
+ CT -> logLevel = 0;
+@@ -2243,14 +2182,16 @@
+
+ void WrongNumberOfArguments(Tcl_Interp* interp,int argc,_CONST_QUAL_ char* argv[]) throw()
+ {
+- sprintf(interp->result,"Wrong number of arguments for command \"%s",argv[0]);
++ Tcl_ResetResult(interp);
++
++ Tcl_AppendResult(interp, "Wrong number of arguments for command \"", argv[0], (char *)NULL);
+
+ for (int i=1;i<argc;++i)
+ {
+- sprintf(interp->result + strlen(interp->result)," %s",argv[i]);
++ Tcl_AppendResult(interp, " ", argv[i], (char *)NULL);
+ }
+
+- sprintf(interp->result + strlen(interp->result),"\"");
++ Tcl_AppendResult(interp, "\"", (char *)NULL);
+ }
+
+
+@@ -2264,7 +2205,7 @@
+ }
+ else
+ {
+- interp->result = "Missing number of graph nodes";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing number of graph nodes", -1));
+ return NoNode;
+ }
+ }
+--- shell_src/goshDisplayProxy.cpp.orig 2013-06-04 18:16:00.000000000 +0200
++++ shell_src/goshDisplayProxy.cpp 2013-06-04 18:16:07.000000000 +0200
+@@ -17,6 +17,8 @@
+ int Goblin_Graph_Display_Proxy_Cmd (ClientData clientData,Tcl_Interp* interp,
+ int argc,_CONST_QUAL_ char* argv[])
+ {
++ Tcl_ResetResult(interp);
++
+ graphDisplayProxy* DP = reinterpret_cast<graphDisplayProxy*>(clientData);
+
+ if (setjmp(goblinThreadData[Goblin_MyThreadIndex()].jumpBuffer) != 0)
+@@ -25,7 +27,7 @@
+ }
+ else if (argc==1)
+ {
+- interp->result = "Missing object command";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing object command", -1));
+ return TCL_ERROR;
+ }
+ else try
+@@ -33,7 +35,6 @@
+ if (strcmp(argv[1],"synchronize")==0)
+ {
+ DP -> Synchronize();
+- interp->result = "";
+ return TCL_OK;
+ }
+
+@@ -41,23 +42,23 @@
+ {
+ if (strcmp(argv[2],"-canvasWidth")==0)
+ {
+- sprintf(interp->result,"%ld",DP->CanvasWidth());
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(DP->CanvasWidth()));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[2],"-canvasHeight")==0)
+ {
+- sprintf(interp->result,"%ld",DP->CanvasHeight());
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(DP->CanvasHeight()));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[2],"-canvasArrowSize")==0)
+ {
+- sprintf(interp->result,"%g",DP->CanvasArrowSize());
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(DP->CanvasArrowSize()));
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: %s",argv[2]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[2], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -65,7 +66,7 @@
+ {
+ if (argc==2)
+ {
+- interp->result = "Missing node index";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing node index", -1));
+ return TCL_ERROR;
+ }
+
+@@ -73,7 +74,7 @@
+
+ if (argc<4)
+ {
+- interp->result = "Missing command option";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing command option", -1));
+ return TCL_ERROR;
+ }
+
+@@ -81,39 +82,43 @@
+ {
+ if (strcmp(argv[4],"-mapped")==0)
+ {
+- sprintf(interp->result,"%s",DP->IsNodeMapped(v) ? "1" : "0");
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(DP->IsNodeMapped(v) ? 1 : 0));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[4],"-canvasWidth")==0)
+ {
+- sprintf(interp->result,"%ld",DP->CanvasNodeWidth(v));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(DP->CanvasNodeWidth(v)));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[4],"-canvasHeight")==0)
+ {
+- sprintf(interp->result,"%ld",DP->CanvasNodeHeight(v));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(DP->CanvasNodeHeight(v)));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[4],"-label")==0)
+ {
+- DP -> CompoundNodeLabel(interp->result,256,v);
++ char tmp[256];
++ DP -> CompoundNodeLabel(tmp,256,v);
++ Tcl_SetObjResult(interp, Tcl_NewStringObj(tmp, -1));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[4],"-colour")==0)
+ {
+- DP -> CanvasNodeColour(interp->result,v);
++ char tmp[256];
++ DP -> CanvasNodeColour(tmp,v);
++ Tcl_SetObjResult(interp, Tcl_NewStringObj(tmp, -1));
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: %s",argv[4]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[4], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+- sprintf(interp->result,"Unknown option: %s",argv[3]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[3], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -121,7 +126,7 @@
+ {
+ if (argc==2)
+ {
+- interp->result = "Missing arc index";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing arc index", -1));
+ return TCL_ERROR;
+ }
+
+@@ -129,7 +134,7 @@
+
+ if (argc<4)
+ {
+- interp->result = "Missing command option";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing command option", -1));
+ return TCL_ERROR;
+ }
+
+@@ -137,44 +142,48 @@
+ {
+ if (strcmp(argv[4],"-mapped")==0)
+ {
+- sprintf(interp->result,"%s",DP->IsArcMapped(a) ? "1" : "0");
++ Tcl_SetObjResult(interp, Tcl_NewIntObj(DP->IsArcMapped(a) ? 1 : 0));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[4],"-canvasPortX")==0)
+ {
+- sprintf(interp->result,"%ld",DP->CanvasCXOfPort(a));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(DP->CanvasCXOfPort(a)));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[4],"-canvasPortY")==0)
+ {
+- sprintf(interp->result,"%ld",DP->CanvasCYOfPort(a));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(DP->CanvasCYOfPort(a)));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[4],"-label")==0)
+ {
+- DP -> CompoundArcLabel(interp->result,256,a);
++ char tmp[256];
++ DP -> CompoundArcLabel(tmp,256,a);
++ Tcl_SetObjResult(interp, Tcl_NewStringObj(tmp, -1));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[4],"-colour")==0)
+ {
+- DP -> CanvasArcColour(interp->result,a);
++ char tmp[256];
++ DP -> CanvasArcColour(tmp,a);
++ Tcl_SetObjResult(interp, Tcl_NewStringObj(tmp, -1));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[4],"-width")==0)
+ {
+- sprintf(interp->result,"%ld",DP->CanvasArcWidth(a));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(DP->CanvasArcWidth(a)));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[4],"-dash")==0)
+ {
+ const char* dashMode[] = {""," -dash ."," -dash -"," -dash -."};
+- sprintf(interp->result,"%s",dashMode[DP->CanvasArcDashMode(a)]);
++ Tcl_SetObjResult(interp, Tcl_NewStringObj(dashMode[DP->CanvasArcDashMode(a)], -1));
+ return TCL_OK;
+ }
+
+@@ -184,35 +193,41 @@
+ {
+ case ARROW_BOTH:
+ {
+- interp->result = "both";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("both", -1));
+ return TCL_OK;
+ }
+ case ARROW_FORWARD:
+ {
+- interp->result = "last";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("last", -1));
+ return TCL_OK;
+ }
+ case ARROW_BACKWARD:
+ {
+- interp->result = "first";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("first", -1));
+ return TCL_OK;
+ }
+ case ARROW_NONE:
+ {
+- interp->result = "none";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("none", -1));
+ return TCL_OK;
+ }
+ }
+
++#if TCL_MAJOR_VERSION > 8 || (TCL_MAJOR_VERSION == 8 && TCL_MINOR_VERSION > 5)
++ Tcl_Obj *resObj = Tcl_NewObj();
++ Tcl_AppendPrintfToObj(resObj, "Unknown arrow display mode: %d",DP->ArrowDirections(a));
++ Tcl_SetObjResult(interp, resObj);
++#else
+ sprintf(interp->result,"Unknown arrow display mode: %d",DP->ArrowDirections(a));
++#endif
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: %s",argv[4]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[4], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+- sprintf(interp->result,"Unknown option: %s",argv[3]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[3], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -220,7 +235,7 @@
+ {
+ if (argc==2)
+ {
+- interp->result = "Missing layout point index";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing layout point index", -1));
+ return TCL_ERROR;
+ }
+
+@@ -228,7 +243,7 @@
+
+ if (argc<4)
+ {
+- interp->result = "Missing command option";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing command option", -1));
+ return TCL_ERROR;
+ }
+
+@@ -236,17 +251,17 @@
+ {
+ if (strcmp(argv[4],"-canvasX")==0)
+ {
+- sprintf(interp->result,"%ld",DP->CanvasCXOfPoint(p));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(DP->CanvasCXOfPoint(p)));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[4],"-canvasY")==0)
+ {
+- sprintf(interp->result,"%ld",DP->CanvasCYOfPoint(p));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(DP->CanvasCYOfPoint(p)));
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: %s",argv[4]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[4], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -254,16 +269,15 @@
+ {
+ if (argc<6)
+ {
+- interp->result = "Missing coordinate values";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing coordinate values", -1));
+ return TCL_ERROR;
+ }
+
+ DP -> PlaceLayoutPoint(p,atol(argv[4]),atol(argv[5]));
+- interp->result = "";
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: %s",argv[3]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[3], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -271,7 +285,7 @@
+ {
+ if (argc==2)
+ {
+- interp->result = "Missing arc index";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing arc index", -1));
+ return TCL_ERROR;
+ }
+
+@@ -279,7 +293,7 @@
+
+ if (argc<4)
+ {
+- interp->result = "Missing command option";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing command option", -1));
+ return TCL_ERROR;
+ }
+
+@@ -287,17 +301,17 @@
+ {
+ if (strcmp(argv[4],"-canvasX")==0)
+ {
+- sprintf(interp->result,"%ld",DP->CanvasCXOfArcLabelAnchor(a));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(DP->CanvasCXOfArcLabelAnchor(a)));
+ return TCL_OK;
+ }
+
+ if (strcmp(argv[4],"-canvasY")==0)
+ {
+- sprintf(interp->result,"%ld",DP->CanvasCYOfArcLabelAnchor(a));
++ Tcl_SetObjResult(interp, Tcl_NewLongObj(DP->CanvasCYOfArcLabelAnchor(a)));
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: %s",argv[4]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[4], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+@@ -305,20 +319,19 @@
+ {
+ if (argc<6)
+ {
+- interp->result = "Missing coordinate values";
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("Missing coordinate values", -1));
+ return TCL_ERROR;
+ }
+
+ DP -> PlaceArcLabelAnchor(a,atol(argv[4]),atol(argv[5]));
+- interp->result = "";
+ return TCL_OK;
+ }
+
+- sprintf(interp->result,"Unknown option: %s",argv[3]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[3], (char *)NULL);
+ return TCL_ERROR;
+ }
+
+- sprintf(interp->result,"Unknown option: %s",argv[1]);
++ Tcl_AppendResult(interp, "Unknown option: ", argv[1], (char *)NULL);
+ return TCL_ERROR;
+ }
+ catch (...)
+--- glpk_wrap/glpkInit.cpp.orig 2013-06-05 09:18:26.000000000 +0200
++++ glpk_wrap/glpkInit.cpp 2013-06-05 09:19:08.000000000 +0200
+@@ -29,7 +29,7 @@
+
+ if (Tcl_PkgRequire(interp,"goblin","2.6",0)==NULL)
+ {
+- sprintf(interp->result,"GOBLIN must be loaded before the GLPK plugin");
++ Tcl_SetObjResult(interp, Tcl_NewStringObj("GOBLIN must be loaded before the GLPK plugin", -1));
+ return TCL_ERROR;
+ }
+
generated by cgit v1.2.3 (git 2.25.1) at 2025-09-01 00:36:48 +0000