Add patch to fix the build on FreeBSD 10.1.

LyX 2.2.0 had some code changes and is using std::bind() when C++11 support is
available. The libc++ version on 10.0 and 10.1 does not work as expected, so
force boost::bind() on those systems to avoid the following error:

frontends/qt4/liblyxqt4.a(GuiWorkArea.o): In function `_ZN5boost6detail8function26void_function_obj_invoker0INSt3__16__bindIMN3lyx8frontend11GuiWorkAreaEFvvEJPS7_EEEvE6invokeERNS1_15function_bufferE':
GuiWorkArea.cpp:(.text._ZN5boost6detail8function26void_function_obj_invoker0INSt3__16__bindIMN3lyx8frontend11GuiWorkAreaEFvvEJPS7_EEEvE6invokeERNS1_15function_bufferE[_ZN5boost6detail8function26void_function_obj_invoker0INSt3__16__bindIMN3lyx8frontend11GuiWorkAreaEFvvEJPS7_EEEvE6invokeERNS1_15function_bufferE]+0xa): undefined reference to `_ZNSt3__18__invokeIRMN3lyx8frontend11GuiWorkAreaEFvvERPS3_JEvEEDTcldsdeclsr3std3__1E7forwardIT0_Efp0_Efp_spclsr3std3__1E7forwardIT1_Efp1_EEEOT_OS9_DpOSA_'
/usr/bin/ld: lyx: hidden symbol `_ZNSt3__18__invokeIRMN3lyx8frontend11GuiWorkAreaEFvvERPS3_JEvEEDTcldsdeclsr3std3__1E7forwardIT0_Efp0_Efp_spclsr3std3__1E7forwardIT1_Efp1_EEEOT_OS9_DpOSA_' isn't defined
/usr/bin/ld: final link failed: Nonrepresentable section on output

2 files changed, 35 insertions, 1 deletions

diff --git a/print/lyx/Makefile b/print/lyx/Makefile
index ec3d21cb6660..6474b829bc0a 100644
--- a/print/lyx/Makefile
+++ b/print/lyx/Makefile
@@ -48,4 +48,10 @@ HUNSPELL_LIB_DEPENDS=	libhunspell-1.3.so:textproc/hunspell
 NLS_CONFIGURE_OFF=	--disable-nls
 NLS_USES=		gettext
 
-.include <bsd.port.mk>
+.include <bsd.port.pre.mk>
+
+.if ${OPSYS} == FreeBSD && (${OSVERSION} >= 1000000 && ${OSVERSION} < 1002000)
+EXTRA_PATCHES=		${FILESDIR}/extrapatch-src_frontends_qt4_GuiWorkArea.cpp
+.endif
+
+.include <bsd.port.post.mk>
diff --git a/print/lyx/files/extrapatch-src_frontends_qt4_GuiWorkArea.cpp b/print/lyx/files/extrapatch-src_frontends_qt4_GuiWorkArea.cpp
new file mode 100644
index 000000000000..fa35a656373a
--- /dev/null
+++ b/print/lyx/files/extrapatch-src_frontends_qt4_GuiWorkArea.cpp
@@ -0,0 +1,28 @@
+This patch is necessary for FreeBSD 10.0 and 10.1, whose libc++ does not work
+with boost and std::bind() and leads to the following failure:
+
+frontends/qt4/liblyxqt4.a(GuiWorkArea.o): In function `_ZN5boost6detail8function26void_function_obj_invoker0INSt3__16__bindIMN3lyx8frontend11GuiWorkAreaEFvvEJPS7_EEEvE6invokeERNS1_15function_bufferE':
+GuiWorkArea.cpp:(.text._ZN5boost6detail8function26void_function_obj_invoker0INSt3__16__bindIMN3lyx8frontend11GuiWorkAreaEFvvEJPS7_EEEvE6invokeERNS1_15function_bufferE[_ZN5boost6detail8function26void_function_obj_invoker0INSt3__16__bindIMN3lyx8frontend11GuiWorkAreaEFvvEJPS7_EEEvE6invokeERNS1_15function_bufferE]+0xa): undefined reference to `_ZNSt3__18__invokeIRMN3lyx8frontend11GuiWorkAreaEFvvERPS3_JEvEEDTcldsdeclsr3std3__1E7forwardIT0_Efp0_Efp_spclsr3std3__1E7forwardIT1_Efp1_EEEOT_OS9_DpOSA_'
+/usr/bin/ld: lyx: hidden symbol `_ZNSt3__18__invokeIRMN3lyx8frontend11GuiWorkAreaEFvvERPS3_JEvEEDTcldsdeclsr3std3__1E7forwardIT0_Efp0_Efp_spclsr3std3__1E7forwardIT1_Efp1_EEEOT_OS9_DpOSA_' isn't defined
+/usr/bin/ld: final link failed: Nonrepresentable section on output
+
+--- src/frontends/qt4/GuiWorkArea.cpp.orig	2016-05-23 23:47:31 UTC
++++ src/frontends/qt4/GuiWorkArea.cpp
+@@ -55,6 +55,8 @@
+ #include "frontends/FontMetrics.h"
+ #include "frontends/WorkAreaManager.h"
+ 
++#include <boost/bind.hpp>
++
+ #include <QContextMenuEvent>
+ #if (QT_VERSION < 0x050000)
+ #include <QInputContext>
+@@ -320,7 +322,7 @@ void GuiWorkArea::init()
+ 	d->setCursorShape(Qt::IBeamCursor);
+ 
+ 	d->synthetic_mouse_event_.timeout.timeout.connect(
+-		bind(&GuiWorkArea::generateSyntheticMouseEvent,
++               boost::bind(&GuiWorkArea::generateSyntheticMouseEvent,
+ 					this));
+ 
+ 	// Initialize the vertical Scroll Bar