Generate dependency information as a sideeffect of compilation.

This speeds up compilation times, simplifies the code and
fixes dependency file generation in libav*.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@31026 b3059339-0415-0410-9bf9-f77b7e298cf2

Makefile

@@ -831,15 +831,6 @@ FFMPEGFILES = $(foreach part, $(FFMPEGPARTS), $(wildcard $(part)/*.[chS] $(part)
 
 all: $(ALL_PRG-yes)
 
-%.d: %.c
-	$(MPDEPEND_CMD) > $@
-
-%.d: %.cpp
-	$(MPDEPEND_CMD_CXX) > $@
-
-%.d: %.m
-	$(MPDEPEND_CMD) > $@
-
 %.ho: %.h
 	$(CC) $(CFLAGS) -Wno-unused -c -o $@ -x c $<
 

configure

@@ -2513,6 +2513,7 @@ else
 fi
 
 cc_check -mno-omit-leaf-frame-pointer && cflags_no_omit_leaf_frame_pointer="-mno-omit-leaf-frame-pointer"
+cc_check -MD -MP && CFLAGS="-MD -MP $CFLAGS"
 
 
 if test -n "$LDFLAGS" ; then
@@ -8472,9 +8473,6 @@ EXTRALIBS          = $extra_ldflags $_ld_static $_ld_lm $extra_libs
 EXTRALIBS_MPLAYER  = $libs_mplayer
 EXTRALIBS_MENCODER = $libs_mencoder
 
-MPDEPEND_CMD     = \$(CC) -MM -MP \$(CFLAGS)   \$(filter-out %.xpm,\$(filter-out %.h,$^)) | sed -e "s,[0-9a-z._-]*: \([a-z0-9/]*/\)[^/]* ,\1&," -e "s,\(.*\)\.o: ,\1.d &,"
-MPDEPEND_CMD_CXX = \$(CC) -MM -MP \$(CXXFLAGS) \$(filter-out  %.hh,\$(filter-out %.h,$^)) | sed -e "s,[0-9a-z._-]*: \([a-z0-9/]*/\)[^/]* ,\1&," -e "s,\(.*\)\.o: ,\1.d &,"
-
 GETCH = $_getch
 HELP_FILE = $_mp_help
 TIMER = $_timer