Using --enable-cxx11 turns on C++11 mode in gcc.
---
config/lyxinclude.m4 | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/config/lyxinclude.m4 b/config/lyxinclude.m4
index e532c54..2e529ea 100644
--- a/config/lyxinclude.m4
+++ b/config/lyxinclude.m4
@@ -232,6 +232,10 @@ AC_ARG_ENABLE(pch,
enable_pch=no;)
lyx_pch_comp=no
+AC_ARG_ENABLE(cxx11,
+ AC_HELP_STRING([--enable-cxx11],[enable C++11 mode]),,
+ enable_cxx11=no;)
+
AC_ARG_ENABLE(assertions,
AC_HELP_STRING([--enable-assertions],[add runtime sanity checks in the
program]),,
[AS_CASE([$build_type], [dev*|pre*], [enable_assertions=yes],
@@ -306,6 +310,18 @@ if test x$GXX = xyes; then
;;
esac
fi
+ if test x$enable_cxx11 = xyes ; then
+ case $gxx_version in
+ 4.3*|4.4*|4.5*|4.6*)
+ lyx_flags="$lyx_flags c++11-mode"
+ CXXFLAGS="-std=gnu++0x $CXXFLAGS"
+ ;;
+ 4.7*|4.8*)
+ lyx_flags="$lyx_flags c++11-mode"
+ CXXFLAGS="-std=gnu++11 $CXXFLAGS"
+ ;;
+ esac
+ fi
fi
test "$lyx_pch_comp" = yes && lyx_flags="$lyx_flags pch"
AM_CONDITIONAL(LYX_BUILD_PCH, test "$lyx_pch_comp" = yes)
--
1.8.0
