diff options
Diffstat (limited to 'mk/vars.mk')
| -rw-r--r-- | mk/vars.mk | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/mk/vars.mk b/mk/vars.mk index 1bc167e52..284b2465b 100644 --- a/mk/vars.mk +++ b/mk/vars.mk @@ -87,12 +87,19 @@ TARGET_CFLAGS:= $(TARGET_OPTIMIZATION) $(TARGET_CFLAGS_ARCH) -fwrapv -fno-ident TARGET_LDFLAGS:= endif +# A nifty macro to make testing gcc features easier (from uClibc project) +check_gcc=$(shell \ + if $(CC) $(1) -S -o /dev/null -xc /dev/null > /dev/null 2>&1; \ + then echo "$(1)"; else echo "$(2)"; fi) + +CF_FOR_BUILD=$(call check_gcc,-fhonour-copts,) + # host compiler flags CPPFLAGS_FOR_BUILD?= -CFLAGS_FOR_BUILD?= -O2 -Wall +CFLAGS_FOR_BUILD= -O2 -Wall $(CF_FOR_BUILD) CXXFLAGS_FOR_BUILD?= -O2 -Wall LDFLAGS_FOR_BUILD?= -FLAGS_FOR_BUILD:= ${CPPFLAGS_FOR_BUILD} ${CFLAGS_FOR_BUILD} ${LDFLAGS_FOR_BUILD} +FLAGS_FOR_BUILD= ${CPPFLAGS_FOR_BUILD} ${CFLAGS_FOR_BUILD} ${LDFLAGS_FOR_BUILD} PATCH= ${BASH} $(SCRIPT_DIR)/patch.sh SED:= sed -i -e |