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autotools: use -fno-strict-aliasing where supported

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=769183
This commit is contained in:
Tim-Philipp Müller 2018-02-04 11:22:36 +01:00
parent 90198daed1
commit 9bfbda8291
1 changed files with 6 additions and 2 deletions
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8
configure.ac
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@ -832,6 +832,10 @@ if test "x$HAVE_CXX" = "xyes"; then
fi fi
AC_SUBST(VISIBILITY_CXXFLAGS) AC_SUBST(VISIBILITY_CXXFLAGS)
dnl disable strict aliasing
AS_COMPILER_FLAG([-fno-strict-aliasing], [EXTRA_CFLAGS="-fno-strict-aliasing"])
AC_SUBST(EXTRA_CFLAGS)
dnl every flag in GST_OPTION_CFLAGS and GST_OPTION_CXXFLAGS can be overridden dnl every flag in GST_OPTION_CFLAGS and GST_OPTION_CXXFLAGS can be overridden
dnl at make time with e.g. make ERROR_CFLAGS="" dnl at make time with e.g. make ERROR_CFLAGS=""
GST_OPTION_CFLAGS="\$(WARNING_CFLAGS) \$(ERROR_CFLAGS) \$(DEBUG_CFLAGS) \$(PROFILE_CFLAGS) \$(GCOV_CFLAGS) \$(OPT_CFLAGS) \$(DEPRECATED_CFLAGS)" GST_OPTION_CFLAGS="\$(WARNING_CFLAGS) \$(ERROR_CFLAGS) \$(DEBUG_CFLAGS) \$(PROFILE_CFLAGS) \$(GCOV_CFLAGS) \$(OPT_CFLAGS) \$(DEPRECATED_CFLAGS)"
@ -851,8 +855,8 @@ AC_SUBST(GST_PLUGINS_BASE_CFLAGS)
dnl FIXME: do we want to rename to GST_ALL_* ? dnl FIXME: do we want to rename to GST_ALL_* ?
dnl add GST_OPTION_CFLAGS, but overridable dnl add GST_OPTION_CFLAGS, but overridable
GST_CFLAGS="$GST_CFLAGS $GST_STATIC_CFLAGS" GST_CFLAGS="$GST_CFLAGS $GST_STATIC_CFLAGS"
GST_CXXFLAGS="$GLIB_CFLAGS $GST_CFLAGS \$(GLIB_EXTRA_CFLAGS) \$(GST_OPTION_CXXFLAGS) \$(VISIBILITY_CXXFLAGS)" GST_CXXFLAGS="$GLIB_CFLAGS $GST_CFLAGS $EXTRA_CFLAGS \$(GLIB_EXTRA_CFLAGS) \$(GST_OPTION_CXXFLAGS) \$(VISIBILITY_CXXFLAGS)"
GST_CFLAGS="$GLIB_CFLAGS $GST_CFLAGS \$(GLIB_EXTRA_CFLAGS) \$(GST_OPTION_CFLAGS) \$(VISIBILITY_CFLAGS)" GST_CFLAGS="$GLIB_CFLAGS $GST_CFLAGS $EXTRA_CFLAGS \$(GLIB_EXTRA_CFLAGS) \$(GST_OPTION_CFLAGS) \$(VISIBILITY_CFLAGS)"
AC_SUBST(GST_CFLAGS) AC_SUBST(GST_CFLAGS)
AC_SUBST(GST_CXXFLAGS) AC_SUBST(GST_CXXFLAGS)
dnl add GCOV libs because libtool strips -fprofile-arcs -ftest-coverage dnl add GCOV libs because libtool strips -fprofile-arcs -ftest-coverage