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| author | kfraser@localhost.localdomain <kfraser@localhost.localdomain> | 2006-10-18 19:14:34 +0100 |
|---|---|---|
| committer | kfraser@localhost.localdomain <kfraser@localhost.localdomain> | 2006-10-18 19:14:34 +0100 |
| commit | f9038804d68bc97bfe33ded8e0b3b761689d6530 (patch) | |
| tree | 78571db4b5c464e9c10be376f807051f52971462 /Config.mk | |
| parent | 923fbdf607ad3b0a2127c279176bb171a49f4822 (diff) | |
| download | xen-f9038804d68bc97bfe33ded8e0b3b761689d6530.tar.gz xen-f9038804d68bc97bfe33ded8e0b3b761689d6530.tar.bz2 xen-f9038804d68bc97bfe33ded8e0b3b761689d6530.zip | |
Replace test-gcc-flag with Linux-style cc-option.
Improve on Linux implementation by looking for any output
on stdout/stderr. This indicates badness.
Signed-off-by: Keir Fraser <keir@xensource.com>
Diffstat (limited to 'Config.mk')
| -rw-r--r-- | Config.mk | 9 |
1 files changed, 6 insertions, 3 deletions
@@ -26,7 +26,10 @@ EXTRA_INCLUDES += $(EXTRA_PREFIX)/include EXTRA_LIB += $(EXTRA_PREFIX)/$(LIBDIR) endif -test-gcc-flag = $(shell $(1) -v --help 2>&1 | grep " $(2) " >/dev/null 2>&1 && echo $(2)) +# cc-option +# Usage: cflags-y += $(call cc-option,$(CC),-march=winchip-c6,-march=i586) +cc-option = $(shell if test -z "`$(1) $(2) -S -o /dev/null -xc \ + /dev/null 2>&1`"; then echo "$(2)"; else echo "$(3)"; fi ;) ifneq ($(debug),y) CFLAGS += -DNDEBUG @@ -42,8 +45,8 @@ CFLAGS += -Wall -Wstrict-prototypes # result of any casted expression causes a warning. CFLAGS += -Wno-unused-value -HOSTCFLAGS += $(call test-gcc-flag,$(HOSTCC),-Wdeclaration-after-statement) -CFLAGS += $(call test-gcc-flag,$(CC),-Wdeclaration-after-statement) +HOSTCFLAGS += $(call cc-option,$(HOSTCC),-Wdeclaration-after-statement,) +CFLAGS += $(call cc-option,$(CC),-Wdeclaration-after-statement,) LDFLAGS += $(foreach i, $(EXTRA_LIB), -L$(i)) CFLAGS += $(foreach i, $(EXTRA_INCLUDES), -I$(i)) |