b3b756dab
Mike Frysinger
2005-07-28
Subject
further refine check_gcc usage so it is only called the bare min number of times
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Rules.mak+7 -4
| @@ -106,8 +106,11 @@ ifeq ($(filter $(noconfig_targets),$(MAKECMDGOALS)),) | |
| endif | |
| # A nifty macro to make testing gcc features easier | |
| - | check_gcc=$(shell if $(CC) $(1) -S -o /dev/null -xc /dev/null > /dev/null 2>&1; \ |
| - | then echo "$(1)"; else echo "$(2)"; fi) |
| + | check_gcc=$(shell \ |
| + | if [ "$(1)" != "" ]; then \ |
| + | if $(CC) $(1) -S -o /dev/null -xc /dev/null > /dev/null 2>&1; \ |
| + | then echo "$(1)"; else echo "$(2)"; fi \ |
| + | fi) |
| # Setup some shortcuts so that silent mode is silent like it should be | |
| ifeq ($(subst s,,$(MAKEFLAGS)),$(MAKEFLAGS)) | |
| @@ -124,7 +127,7 @@ endif | |
| # for OPTIMIZATION... | |
| # use '-Os' optimization if available, else use -O2 | |
| - | OPTIMIZATION:=${call check_gcc,-Os,-O2} |
| + | OPTIMIZATION:=$(call check_gcc,-Os,-O2) |
| # Some nice architecture specific optimizations | |
| ifeq ($(strip $(TARGET_ARCH)),arm) | |
| @@ -136,7 +139,7 @@ ifeq ($(strip $(TARGET_ARCH)),i386) | |
| OPTIMIZATION+=$(call check_gcc,-falign-functions=0 -falign-jumps=0 -falign-loops=0,\ | |
| -malign-functions=0 -malign-jumps=0 -malign-loops=0) | |
| endif | |
| - | OPTIMIZATIONS=$(OPTIMIZATION) -fomit-frame-pointer |
| + | OPTIMIZATIONS:=$(OPTIMIZATION) -fomit-frame-pointer |
| # | |
| #-------------------------------------------------------- | |