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-rw-r--r--Make.rules9
1 files changed, 8 insertions, 1 deletions
diff --git a/Make.rules b/Make.rules
index e6db280..3bdf267 100644
--- a/Make.rules
+++ b/Make.rules
@@ -47,6 +47,8 @@ export srctree objtree
##
# Consult SCM for better version string.
+TAGPREFIX ?= v
+
GIT_REV := $(shell test -d .git && git describe || echo exported)
ifneq ($(GIT_REV), exported)
FULL_VERSION := $(patsubst $(TAGPREFIX)%,%,$(GIT_REV))
@@ -152,7 +154,8 @@ escsq = $(subst $(squote),'\$(squote)',$1)
# Find any prerequisites that is newer than target or that does not exist.
# PHONY targets skipped in both cases.
-any-prereq = $(filter-out $(PHONY),$?) $(filter-out $(PHONY) $(wildcard $^),$^)
+local-target-prereqs = %
+any-prereq = $(filter $(local-target-prereqs), $(filter-out $(PHONY),$?) $(filter-out $(PHONY) $(wildcard $^), $^))
# Execute command if command has changed or prerequisite(s) are updated.
#
@@ -188,6 +191,8 @@ define rule_cc_o_c
rm $(depfile)
endef
+$(obj)/%.o: override local-target-prereqs=%
+
$(obj)/%.o: $(src)/%.c FORCE
$(call if_changed_rule,cc_o_c)
@@ -204,6 +209,8 @@ quiet_cmd_ld = LD $@
$(addprefix $(obj)/,$($(@F)-objs)) \
$(LIBS) $(LIBS_$(@F))
+$(__progs): override local-target-prereqs=$(addprefix $(obj)/,$($(*F)-objs))
+
$(__progs): $(obj)/%: $(cobjs) FORCE
$(call if_changed,ld)