config: move CWARNFLAGS from configure.ac to Makefile.am

Compiler warning flags should be explicitly set in the makefile
rather than being merged with other packages compiler flags.

Signed-off-by: Gaetan Nadon <memsize@videotron.ca>

configure.ac

@@ -40,9 +40,6 @@ AC_PROG_LIBTOOL
 
 # Check for dependencies
 PKG_CHECK_MODULES(DMX, x11 xext xextproto [dmxproto >= 2.2.99.1])
-DMX_CFLAGS="$CWARNFLAGS $DMX_CFLAGS"
-AC_SUBST(DMX_CFLAGS)
-AC_SUBST(DMX_LIBS)
 
 XORG_CHECK_MALLOC_ZERO
 

src/Makefile.am

@@ -11,7 +11,8 @@ AM_CFLAGS = -I$(top_srcdir)/include \
             -I$(top_srcdir)/include/X11 \
             -I$(top_srcdir)/include/X11/extensions \
             $(DMX_CFLAGS) \
-            $(MALLOC_ZERO_CFLAGS)
+            $(MALLOC_ZERO_CFLAGS) \
+            $(CWARNFLAGS)
 
 libdmxincludedir = $(includedir)/X11/extensions
 libdmxinclude_HEADERS = $(top_srcdir)/include/X11/extensions/dmxext.h