diff options
| -rw-r--r-- | builddefs/common_rules.mk | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/builddefs/common_rules.mk b/builddefs/common_rules.mk index 261ab7da02..52dccbe475 100644 --- a/builddefs/common_rules.mk +++ b/builddefs/common_rules.mk @@ -12,6 +12,9 @@ vpath %.hpp $(VPATH_SRC) vpath %.S $(VPATH_SRC) VPATH := +# Helper to return the distinct elements of a list +uniq = $(if $1,$(firstword $1) $(call uniq,$(filter-out $(firstword $1),$1))) + # Convert all SRC to OBJ define OBJ_FROM_SRC $(patsubst %.c,$1/%.o,$(patsubst %.cpp,$1/%.o,$(patsubst %.cc,$1/%.o,$(patsubst %.S,$1/%.o,$(patsubst %.clib,$1/%.a,$($1_SRC)))))) @@ -264,7 +267,7 @@ BEGIN = gccversion sizebefore # Note the obj.txt depeendency is there to force linking if a source file is deleted %.elf: $(OBJ) $(MASTER_OUTPUT)/cflags.txt $(MASTER_OUTPUT)/ldflags.txt $(MASTER_OUTPUT)/obj.txt | $(BEGIN) @$(SILENT) || printf "$(MSG_LINKING) $@" | $(AWK_CMD) - $(eval CMD=MAKE=$(MAKE) $(CC) $(ALL_CFLAGS) $(filter-out %.txt,$^) --output $@ $(LDFLAGS)) + $(eval CMD=MAKE=$(MAKE) $(CC) $(ALL_CFLAGS) $(call uniq,$(OBJ)) --output $@ $(LDFLAGS)) @$(BUILD_CMD) |