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| author | Keir Fraser <keir@xen.org> | 2011-09-30 21:17:47 +0100 |
|---|---|---|
| committer | Keir Fraser <keir@xen.org> | 2011-09-30 21:17:47 +0100 |
| commit | 6a688c6b6a26804a30d84d99f72a195b4efde006 (patch) | |
| tree | 34b4d4822b1d567129efd3537eb735070a382745 /Config.mk | |
| parent | 103b4a31567fbbea27a38dfbd5f8e1ca3a870869 (diff) | |
| download | xen-6a688c6b6a26804a30d84d99f72a195b4efde006.tar.gz xen-6a688c6b6a26804a30d84d99f72a195b4efde006.tar.bz2 xen-6a688c6b6a26804a30d84d99f72a195b4efde006.zip | |
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 -- $(2)" in cc-options. It seems that the
default of reading stdin is disabled when using "--". I don't know if
this is a bug in grep or how it is supposed to be but we can work
around it by explicitly passing in "-"
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Keir Fraser <keir@xen.org>
Diffstat (limited to 'Config.mk')
| -rw-r--r-- | Config.mk | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -84,7 +84,7 @@ PYTHON_PREFIX_ARG ?= --prefix="$(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. |