From 6a688c6b6a26804a30d84d99f72a195b4efde006 Mon Sep 17 00:00:00 2001 From: Keir Fraser Date: Fri, 30 Sep 2011 21:17:47 +0100 Subject: build: fix grep invocation in cc-options Currently the build produces lots of Usage: grep [OPTION]... PATTERN [FILE]... Try `grep --help' for more information. This is due to the "grep -- $(2)" in cc-options. It seems that the default of reading stdin is disabled when using "--". I don't know if this is a bug in grep or how it is supposed to be but we can work around it by explicitly passing in "-" Signed-off-by: Ian Campbell Committed-by: Keir Fraser --- Config.mk | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Config.mk') diff --git a/Config.mk b/Config.mk index 6505697df1..6cb37ca6b9 100644 --- a/Config.mk +++ b/Config.mk @@ -84,7 +84,7 @@ PYTHON_PREFIX_ARG ?= --prefix="$(PREFIX)" # # Usage: cflags-y += $(call cc-option,$(CC),-march=winchip-c6,-march=i586) cc-option = $(shell if test -z "`echo 'void*p=1;' | \ - $(1) $(2) -S -o /dev/null -xc - 2>&1 | grep -- $(2)`"; \ + $(1) $(2) -S -o /dev/null -xc - 2>&1 | grep -- $(2) -`"; \ then echo "$(2)"; else echo "$(3)"; fi ;) # cc-option-add: Add an option to compilation flags, but only if supported. -- cgit v1.2.3