Move dependency generation commands into configure.

This will allow specifying gcc-independent commands in the future.

Originally committed as revision 12426 to svn://svn.ffmpeg.org/ffmpeg/trunk

Makefile

@@ -223,11 +223,10 @@ depend dep: .depend .vhookdep
 	$(MAKE-$(CONFIG_AVFILTER)) -C libavfilter depend
 
 .depend: $(SRCS) version.h
-	$(CC) -MM $(CFLAGS) $(filter-out %.h,$^) > $@
+	$(DEPEND_CMD) > $@
 
-# gcc stupidly only outputs the basename of targets with -MM
 .vhookdep: $(ALLHOOKS_SRCS) version.h
-	$(CC) -MM $(VHOOKCFLAGS) $(filter-out %.h,$^) | sed 's,^\([a-z]\),vhook/\1,' > $@
+	$(VHOOK_DEPEND_CMD) > $@
 
 $(DEP_LIBS): lib
 

common.mak

@@ -61,9 +61,8 @@ $(SLIBNAME_WITH_MAJOR): $(OBJS)
 ALLHEADERS = $(subst $(LIBSRC)/,,$(wildcard $(LIBSRC)/*.h))
 checkheaders: $(filter-out %_template.ho,$(ALLHEADERS:.h=.ho))
 
-# gcc stupidly only outputs the basename of targets with -MM
 depend dep: $(SRCS)
-	$(CC) -MM $(CFLAGS) $^ | sed 's,[0-9a-z._-]*: \([a-z0-9]*/\).*,\1&,' > .depend
+	$(DEPEND_CMD) > .depend
 
 clean::
 	rm -f *.o *~ *.a *.lib *.so *.so.* *.dylib *.dll \

configure

@@ -934,6 +934,10 @@ SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
 LIB_INSTALL_EXTRA_CMD='$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
 
+# gcc stupidly only outputs the basename of targets with -MM
+DEPEND_CMD='$(CC) -MM $(CFLAGS) $(filter-out %.h,$^) | sed "s,[0-9a-z._-]*: \([a-z0-9]*/\).*,\1&,"'
+VHOOKDEPEND_CMD='$(CC) -MM $(VHOOKCFLAGS) $(filter-out %.h,$^) | sed "s,^\([a-z]\),vhook/\1,"'
+
 # find source path
 source_path="`dirname \"$0\"`"
 enable source_path_used
@@ -1991,6 +1995,8 @@ echo "LIBNAME=$LIBNAME" >> config.mak
 echo "SLIBPREF=$SLIBPREF" >> config.mak
 echo "SLIBSUF=$SLIBSUF" >> config.mak
 echo "EXESUF=$EXESUF" >> config.mak
+echo "DEPEND_CMD=$DEPEND_CMD" >> config.mak
+echo "VHOOKDEPEND_CMD=$VHOOKDEPEND_CMD" >> config.mak
 
 if enabled bigendian; then
     echo "WORDS_BIGENDIAN=yes" >> config.mak