autotools: use -fno-strict-aliasing where supported

https://bugzilla.gnome.org/show_bug.cgi?id=769183

diff --git a/configure.ac b/configure.ac
index c0412ed..8c922f8 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -935,6 +935,10 @@ dnl special warning flags for gst/printf
 AS_COMPILER_FLAG([-Wno-format-nonliteral], [PRINTF_CFLAGS="-Wno-format-nonliteral"])
 AC_SUBST(PRINTF_CFLAGS)
 
+dnl disable strict aliasing
+AS_COMPILER_FLAG([-fno-strict-aliasing], [EXTRA_CFLAGS="-fno-strict-aliasing"])
+AC_SUBST(EXTRA_CFLAGS)
+
 dnl define correct level for debugging messages
 AG_GST_SET_LEVEL_DEFAULT($GST_GIT)
 
@@ -982,8 +986,8 @@ dnl - src and build dirs need to be added because every piece that gets built
 dnl   will need the GStreamer source and generated headers
 dnl LIBS: XML doesn't need to be added because we don't explicitly use symbols
 dnl       from LibXML except for in the core library
-GST_ALL_CXXFLAGS="-I\$(top_srcdir)/libs -I\$(top_srcdir) -I\$(top_builddir)/libs -I\$(top_builddir) $GLIB_CFLAGS \$(GLIB_EXTRA_CFLAGS) $XML_CFLAGS \$(GST_OPTION_CXXFLAGS) \$(ERROR_CXXFLAGS)"
-GST_ALL_CFLAGS="-I\$(top_srcdir)/libs -I\$(top_srcdir) -I\$(top_builddir)/libs -I\$(top_builddir) $GLIB_CFLAGS \$(GLIB_EXTRA_CFLAGS) $XML_CFLAGS \$(GST_OPTION_CFLAGS) \$(ERROR_CFLAGS)"
+GST_ALL_CXXFLAGS="-I\$(top_srcdir)/libs -I\$(top_srcdir) -I\$(top_builddir)/libs -I\$(top_builddir) $GLIB_CFLAGS \$(GLIB_EXTRA_CFLAGS) $EXTRA_CFLAGS \$(GST_OPTION_CXXFLAGS) \$(ERROR_CXXFLAGS)"
+GST_ALL_CFLAGS="-I\$(top_srcdir)/libs -I\$(top_srcdir) -I\$(top_builddir)/libs -I\$(top_builddir) $GLIB_CFLAGS \$(GLIB_EXTRA_CFLAGS) $EXTRA_CFLAGS \$(GST_OPTION_CFLAGS) \$(ERROR_CFLAGS)"
 
 dnl FIXME: check if LTLIBINTL is needed everywhere
 dnl I presume it is given that it contains the symbols that _() stuff maps to

diff --git a/gst/printf/Makefile.am b/gst/printf/Makefile.am
index 1388be7..f62b448 100644 (file)
--- a/gst/printf/Makefile.am
+++ b/gst/printf/Makefile.am
@@ -14,7 +14,7 @@ AM_CPPFLAGS += $(PRINTF_EXTRA_CFLAGS)
 
 noinst_LTLIBRARIES = libgstprintf.la
 
-libgstprintf_la_CFLAGS =
+libgstprintf_la_CFLAGS = $(EXTRA_CFLAGS)
 libgstprintf_la_SOURCES =      \
        asnprintf.c \
        printf-args.c \