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Merge pull request #508 from DrDoof/fix/rebuild-on-flag-change

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build: rebuild objects when the compiler flags change
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d00f authored and GitHub committed 2026-09-23 16:38:08 +02:00
2 parents 40177f6318 689751ffe6
commit 4b9f6c319f
1 file changed
+12 -2
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Makefile
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@@ -134,10 +134,20 @@ distclean: $(SUBDIRSCLEAN)
$(SUBDIRSCLEAN): $(SUBDIRSCLEAN):
$(MAKE) -C $(@:clean=) clean $(MAKE) -C $(@:clean=) clean
$(BUILDDIR)/%.rel: %.c | create_build_dir html_data.h # Objects depend on the flags they were built with, through a stamp file that
# is rewritten only when CC_FLAGS actually changes.
CCFLAGS_STAMP := $(BUILDDIR)/.ccflags
.PHONY: FORCE
FORCE:
$(CCFLAGS_STAMP): FORCE | create_build_dir
@echo '$(CC_FLAGS)' | cmp -s - $@ 2>/dev/null || echo '$(CC_FLAGS)' > $@
$(BUILDDIR)/%.rel: %.c $(CCFLAGS_STAMP) | create_build_dir html_data.h
$(CC) -MMD $(CC_FLAGS) -o $@ -c $< $(CC) -MMD $(CC_FLAGS) -o $@ -c $<
$(BUILDDIR)/%.rel: %.asm | create_build_dir $(BUILDDIR)/%.rel: %.asm $(CCFLAGS_STAMP) | create_build_dir
${ASM} ${AFLAGS} -o $@ $< ${ASM} ${AFLAGS} -o $@ $<
# mv -f $(addprefix $(basename $^), .lst .rel .sym) . # mv -f $(addprefix $(basename $^), .lst .rel .sym) .