build: Do not create .d files for gengetopt source files.

The generated *.cmdline* files do not depend on headers of the source
tree, so it is pointless to let the compiler create dependencies
for them.

This speeds up make dep by 25%.

diff --git a/Makefile.real b/Makefile.real
index f391d26eb7ceee753c446557edff379adff08410..71f066793beeec0254f42dbddc3d647d7c7fe2cf 100644 (file)
--- a/Makefile.real
+++ b/Makefile.real
@@ -32,7 +32,7 @@ test_dir := t
 all_objs := $(sort $(recv_objs) $(filter_objs) $(client_objs) $(gui_objs) \
        $(audiod_objs) $(audioc_objs) $(fade_objs) $(server_objs) \
        $(write_objs) $(afh_objs) $(play_objs))
-deps := $(addprefix $(dep_dir)/, $(all_objs:.o=.d))
+deps := $(addprefix $(dep_dir)/, $(filter-out %.cmdline.d, $(all_objs:.o=.d)))
 m4_deps := $(addprefix $(m4depdir)/, $(addsuffix .m4d, $(executables)))
 
 # now prefix all objects with object dir
@@ -244,11 +244,6 @@ $(object_dir)/%.cmdline.o: $(cmdline_dir)/%.cmdline.c $(cmdline_dir)/%.cmdline.h
        @[ -z "$(Q)" ] || echo 'CC $<'
        $(Q) $(CC) -c -o $@ $(CPPFLAGS) $(CFLAGS) $<
 
-$(dep_dir)/%.cmdline.d: $(cmdline_dir)/%.cmdline.c error2.h | $(dep_dir) $(cmdlist_dir)
-       @[ -z "$(Q)" ] || echo 'DEP $<'
-       $(Q) ./depend.sh $(dep_dir) $(object_dir) $(cmdline_dir) \
-               $(cmdlist_dir) $(CPPFLAGS) $< > $@
-
 $(dep_dir)/%.d: %.c error2.h | $(dep_dir) $(cmdlist_dir)
        @[ -z "$(Q)" ] || echo 'DEP $<'
        $(Q) ./depend.sh $(dep_dir) $(object_dir) $(cmdline_dir) \