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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 12:24:09 +01:00
parent 3a8bed19da
commit 22e1bc7763
1 changed files with 5 additions and 1 deletions
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6
configure.ac
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@ -268,6 +268,10 @@ VISIBILITY_CFLAGS=""
AS_COMPILER_FLAG([-fvisibility=hidden], [VISIBILITY_CFLAGS="-fvisibility=hidden"]) AS_COMPILER_FLAG([-fvisibility=hidden], [VISIBILITY_CFLAGS="-fvisibility=hidden"])
AC_SUBST(VISIBILITY_CFLAGS) AC_SUBST(VISIBILITY_CFLAGS)
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 can be overridden at make time dnl every flag in GST_OPTION_CFLAGS can be overridden at make time
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)"
AC_SUBST(GST_OPTION_CFLAGS) AC_SUBST(GST_OPTION_CFLAGS)
@ -275,7 +279,7 @@ AC_SUBST(GST_OPTION_CFLAGS)
dnl FIXME: do we want to rename to GST_ALL_* ? dnl FIXME: do we want to rename to GST_ALL_* ?
dnl prefer internal headers to already installed ones dnl prefer internal headers to already installed ones
dnl add GST_OPTION_CFLAGS, but overridable dnl add GST_OPTION_CFLAGS, but overridable
GST_CFLAGS="$GST_CFLAGS \$(GST_STATIC_CFLAGS) \$(GST_OPTION_CFLAGS) \$(VISIBILITY_CFLAGS)" GST_CFLAGS="$GST_CFLAGS $EXTRA_CFLAGS \$(GST_STATIC_CFLAGS) \$(GST_OPTION_CFLAGS) \$(VISIBILITY_CFLAGS)"
AC_SUBST(GST_CFLAGS) AC_SUBST(GST_CFLAGS)
AC_SUBST(GST_LIBS) AC_SUBST(GST_LIBS)