Update CONFIGURE_ARGS for how we pass CONFIGURE_TARGET to configure script.

Specifically, newer autoconf (> 2.13) has different semantic of the
configure target. In short, one should use --build=CONFIGURE_TARGET
instead of CONFIGURE_TARGET directly. Otherwise, you will get a warning
and the old semantic may be removed in later autoconf releases.

To workaround this issue, many ports hack the CONFIGURE_TARGET variable
so that it contains the ``--build='' prefix.

To solve this issue, under the fact that some ports still have
configure script generated by the old autoconf, we use runtime detection
in the do-configure target so that the proper argument can be used.

Changes to Mk/*:
 - Add runtime detection magic in bsd.port.mk
 - Remove CONFIGURE_TARGET hack in various bsd.*.mk
 - USE_GNOME=gnometarget is now an no-op

Changes to individual ports, other than removing the CONFIGURE_TARGET hack:

= pkg-plist changed (due to the ugly CONFIGURE_TARGET prefix in * executables)
  - comms/gnuradio
  - science/abinit
  - science/elmer-fem
  - science/elmer-matc
  - science/elmer-meshgen2d
  - science/elmerfront
  - science/elmerpost

= use x86_64 as ARCH
  - devel/g-wrap

= other changes
  - print/magicfilter
    GNU_CONFIGURE -> HAS_CONFIGURE since it's not generated by autoconf

Total # of ports modified:  1,027
Total # of ports affected: ~7,000 (set GNU_CONFIGURE to yes)

PR:		126524 (obsoletes 52917)
Submitted by:	rafan
Tested on:	two pointyhat 7-amd64 exp runs (by pav)
Approved by:	portmgr (pav)

15 files changed, 1 insertions, 15 deletions

diff --git a/x11-toolkits/SoXt/Makefile b/x11-toolkits/SoXt/Makefile
index 167cc8b9cb9d..a00f27e103bb 100644
--- a/x11-toolkits/SoXt/Makefile
+++ b/x11-toolkits/SoXt/Makefile
@@ -23,7 +23,6 @@ GNU_CONFIGURE=	yes
 CONFIGURE_ENV+=	LIBS="${PTHREAD_LIBS}"
 CONFIGURE_ARGS+=	--with-pthread=yes --with-coin=${LOCALBASE}
 # avoid renaming of soxt-config and soxt-config.1
-CONFIGURE_TARGET=	--target=""
 USE_LDCONFIG=	yes
 MAN1=		soxt-config.1
 
diff --git a/x11-toolkits/fltk/Makefile b/x11-toolkits/fltk/Makefile
index 0c6b5ccfcba5..ef94c867e90a 100644
--- a/x11-toolkits/fltk/Makefile
+++ b/x11-toolkits/fltk/Makefile
@@ -36,7 +36,6 @@ VERSION=	1.1.7
 USE_BZIP2=	yes
 USE_LDCONFIG=	yes
 GNU_CONFIGURE=	yes
-CONFIGURE_TARGET=	--build=${MACHINE_ARCH}-portbld-freebsd${OSREL}
 CONFIGURE_ARGS+=--enable-shared --enable-xft
 # configure ignores ${CXX} and keeps on linking C++ code with ${CC}
 CONFIGURE_ENV+=	CC="${CXX}" CPPFLAGS="${CPPFLAGS} -I${LOCALBASE}/include" \
diff --git a/x11-toolkits/fltk2/Makefile b/x11-toolkits/fltk2/Makefile
index ff0381e4d9a0..fa0e7af77be4 100644
--- a/x11-toolkits/fltk2/Makefile
+++ b/x11-toolkits/fltk2/Makefile
@@ -54,7 +54,6 @@ CONFIGURE_ARGS+=	--enable-jpeg --enable-png --enable-gl --enable-xft \
 # after possibly incompatible updates to fltk2.
 CONFIGURE_ARGS+=	--disable-shared
 CONFIGURE_ENV+=	CPPFLAGS="${CPPFLAGS}" LDFLAGS="${LDFLAGS}"
-CONFIGURE_TARGET=	--build=${MACHINE_ARCH}-portbuild-freebsd${OSREL}
 
 DOCSDIR=	${PREFIX}/share/doc/fltk2
 PORTDOCS=	*
diff --git a/x11-toolkits/fox14/Makefile b/x11-toolkits/fox14/Makefile
index 83e62a50cc5f..3c0de3fd2d67 100644
--- a/x11-toolkits/fox14/Makefile
+++ b/x11-toolkits/fox14/Makefile
@@ -32,7 +32,6 @@ PLIST_SUB+=	MAJORVER=${MAJORVER} SHVER=${SHVER}
 USE_AUTOTOOLS=	libtool:15
 USE_GL=		yes
 GNU_CONFIGURE=	yes
-CONFIGURE_TARGET=	--build=${MACHINE_ARCH}-portbld-freebsd${OSREL}
 CONFIGURE_ENV=	CPPFLAGS="${CPPFLAGS}" LDFLAGS="${LDFLAGS}"
 CONFIGURE_ARGS=	--with-opengl --with-x --enable-threadsafe
 USE_LDCONFIG=	yes
diff --git a/x11-toolkits/gnustep-back/Makefile b/x11-toolkits/gnustep-back/Makefile
index b73319f3660c..0c7c629b02b7 100644
--- a/x11-toolkits/gnustep-back/Makefile
+++ b/x11-toolkits/gnustep-back/Makefile
@@ -21,7 +21,6 @@ LIB_DEPENDS+=	Xft.2:${PORTSDIR}/x11-fonts/libXft
 LIB_DEPENDS+=	fontconfig.1:${PORTSDIR}/x11-fonts/fontconfig
 
 GNU_CONFIGURE=	yes
-CONFIGURE_TARGET=
 CONFIGURE_ARGS+=	--with-tiff-library=${LOCALBASE}/lib
 CONFIGURE_ARGS+=	--with-tiff-include=${LOCALBASE}/include
 CONFIGURE_ARGS+=	--with-jpeg-library=${LOCALBASE}/lib
diff --git a/x11-toolkits/gnustep-gui/Makefile b/x11-toolkits/gnustep-gui/Makefile
index 35083709c84e..4b6b2f585982 100644
--- a/x11-toolkits/gnustep-gui/Makefile
+++ b/x11-toolkits/gnustep-gui/Makefile
@@ -21,7 +21,6 @@ LIB_DEPENDS+=	ungif.5:${PORTSDIR}/graphics/libungif
 
 RESTRICTED=	GPL3
 GNU_CONFIGURE=	yes
-CONFIGURE_TARGET=
 CONFIGURE_ARGS+=	--with-tiff-library=${LOCALBASE}/lib
 CONFIGURE_ARGS+=	--with-tiff-include=${LOCALBASE}/include
 CONFIGURE_ARGS+=	--with-jpeg-library=${LOCALBASE}/lib
diff --git a/x11-toolkits/gob/Makefile b/x11-toolkits/gob/Makefile
index 1fde69f14e77..fd6738881326 100644
--- a/x11-toolkits/gob/Makefile
+++ b/x11-toolkits/gob/Makefile
@@ -20,7 +20,6 @@ USE_GNOME=	gtk12
 GNU_CONFIGURE=	yes
 CONFIGURE_ENV=	CPPFLAGS="-I${LOCALBASE}/include" \
 		LIBS="-L${LOCALBASE}/lib"
-CONFIGURE_TARGET=	--target=${MACHINE_ARCH}-unknown-freebsd${OSREL}
 
 MAN1=		gob.1
 
diff --git a/x11-toolkits/libgtkeditor/Makefile b/x11-toolkits/libgtkeditor/Makefile
index b1a7d9ee2b0e..c514bb3bb601 100644
--- a/x11-toolkits/libgtkeditor/Makefile
+++ b/x11-toolkits/libgtkeditor/Makefile
@@ -27,7 +27,6 @@ CFLAGS+=	-fPIC
 
 CONFIGURE_ENV=	CPPFLAGS="-I${LOCALBASE}/include" \
 		LDFLAGS="-L${LOCALBASE}/lib"
-CONFIGURE_TARGET=	${MACHINE_ARCH}-portbld-freebsd${OSREL}
 
 pre-configure:
 .for file in install-sh mkinstalldirs
diff --git a/x11-toolkits/movingmotif/Makefile b/x11-toolkits/movingmotif/Makefile
index d7273dddf293..cd871f6d3949 100644
--- a/x11-toolkits/movingmotif/Makefile
+++ b/x11-toolkits/movingmotif/Makefile
@@ -16,7 +16,6 @@ COMMENT=	Display scientific data as dynamic plot
 
 USE_MOTIF=	yes
 USE_AUTOTOOLS=	libtool:15
-CONFIGURE_TARGET=	--build=${ARCH}-portbld-freebsd${OSREL}
 USE_LDCONFIG=	yes
 
 .include <bsd.port.pre.mk>
diff --git a/x11-toolkits/neXtaw/Makefile b/x11-toolkits/neXtaw/Makefile
index 854c970956a0..b07743f08705 100644
--- a/x11-toolkits/neXtaw/Makefile
+++ b/x11-toolkits/neXtaw/Makefile
@@ -17,7 +17,6 @@ COMMENT=	Athena Widgets with N*XTSTEP appearance
 USE_AUTOTOOLS=	libtool:15
 USE_XORG=	xmu x11 xext
 GNU_CONFIGURE=	yes
-CONFIGURE_TARGET=	--build=${MACHINE_ARCH}-portbld-freebsd${OSREL}
 CONFIGURE_ENV=	CPPFLAGS="-I${LOCALBASE}/include" \
 		LDFLAGS="-L${LOCALBASE}/lib"
 USE_LDCONFIG=	yes
diff --git a/x11-toolkits/paragui-devel/Makefile b/x11-toolkits/paragui-devel/Makefile
index 5114edeec114..795fcffd619f 100644
--- a/x11-toolkits/paragui-devel/Makefile
+++ b/x11-toolkits/paragui-devel/Makefile
@@ -26,7 +26,6 @@ CONFLICTS=	paragui-[0-9]*
 USE_AUTOTOOLS=	libtool:15
 USE_SDL=	sdl image ttf
 LIBTOOLFLAGS=	--disable-ltlibs --release-ignore
-CONFIGURE_TARGET=	--build=${MACHINE_ARCH}-portbld-freebsd${OSREL}
 CONFIGURE_ENV=	CPPFLAGS="-I${PREFIX}/include -I${LOCALBASE}/include ${PTHREAD_CFLAGS}" \
 		LDFLAGS="-L${PREFIX}/lib -L${LOCALBASE}/lib ${PTHREAD_LIBS}"
 USE_LDCONFIG=	yes
diff --git a/x11-toolkits/py-gtk/Makefile b/x11-toolkits/py-gtk/Makefile
index b78524d4b774..e848a46f6e25 100644
--- a/x11-toolkits/py-gtk/Makefile
+++ b/x11-toolkits/py-gtk/Makefile
@@ -29,7 +29,6 @@ USE_GNOME=	gnomelibs gdkpixbuf libglade
 USE_PYTHON=	yes
 GNU_CONFIGURE=	yes
 CONFIGURE_ENV=	PYTHON=${PYTHON_CMD}
-CONFIGURE_TARGET=	--target=${MACHINE_ARCH}-unknown-freebsd${OSREL}
 
 EG_SRC_DIR=	${WRKSRC}/examples
 EG_DST_DIR=	${PREFIX}/share/examples/py-gtk
diff --git a/x11-toolkits/soqt/Makefile b/x11-toolkits/soqt/Makefile
index b0cf8b1436be..60c37d33a41a 100644
--- a/x11-toolkits/soqt/Makefile
+++ b/x11-toolkits/soqt/Makefile
@@ -22,7 +22,6 @@ USE_AUTOTOOLS=	libtool:15
 USE_QT_VER=	3
 USE_GMAKE=	yes
 GNU_CONFIGURE=	yes
-CONFIGURE_TARGET=	--build=${MACHINE_ARCH}-portbld-freebsd${OSREL}
 CONFIGURE_ENV=	QTDIR="${QT_PREFIX}"
 CONFIGURE_ARGS=	--with-pthread=yes --with-coin=${LOCALBASE}
 USE_LDCONFIG=	yes
diff --git a/x11-toolkits/wxgtk24/Makefile b/x11-toolkits/wxgtk24/Makefile
index d6a0e4b53a03..138ed88ecdde 100644
--- a/x11-toolkits/wxgtk24/Makefile
+++ b/x11-toolkits/wxgtk24/Makefile
@@ -33,7 +33,7 @@ CONFIGURE_ARGS=	--with-libpng=sys \
 		--with-libtiff=sys \
 		--with-zlib=sys \
 		--with-opengl\
-		--enable-gtk2 ${MACHINE_ARCH}-portbld-freebsd${OSREL}\
+		--enable-gtk2 \
 		--includedir=${PREFIX}/include/wx-2.4
 CONFIGURE_ENV=	CPPFLAGS="-I${WRKSRC}/include \
 			  -I${LOCALBASE}/include \
diff --git a/x11-toolkits/xbae/Makefile b/x11-toolkits/xbae/Makefile
index 200cb3844442..05e5a75b5fde 100644
--- a/x11-toolkits/xbae/Makefile
+++ b/x11-toolkits/xbae/Makefile
@@ -20,7 +20,6 @@ COMMENT=	A Motif-based widget which displays a grid of cells as a spreadsheet
 USE_AUTOTOOLS=	libtool:15
 USE_LDCONFIG=	yes
 USE_MOTIF=	yes
-CONFIGURE_TARGET=	--build=${MACHINE_ARCH}-portbld-freebsd${OSREL}
 CONFIGURE_ARGS=--enable-production --enable-static
 
 MAN3=		XbaeCaption.3 XbaeInput.3 XbaeMatrix.3