Rewrite sw_vers makefile check to avoid error message on Linux.
When building compiler-rt on Linux, the "which sw_vers" check fails and
writes an error message into the build log. Apparently on Solaris "which"
writes the error message to stdout, so that the current test won't even
work properly. As far as I know sw_vers always lives in /usr/bin, so just
check for it there instead of using "which".
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@180792 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/make/platform/clang_darwin.mk b/make/platform/clang_darwin.mk
index ef96b01..6755b4b 100644
--- a/make/platform/clang_darwin.mk
+++ b/make/platform/clang_darwin.mk
@@ -83,14 +83,12 @@
# object files. If we are on that platform, strip out all ARM archs. We still
# build the libraries themselves so that Clang can find them where it expects
# them, even though they might not have an expected slice.
-ifneq ($(shell which sw_vers),)
-ifneq ($(shell sw_vers -productVersion | grep 10.6),)
+ifneq ($(shell test -x /usr/bin/sw_vers && sw_vers -productVersion | grep 10.6),)
UniversalArchs.ios := $(filter-out armv7, $(UniversalArchs.ios))
UniversalArchs.cc_kext := $(filter-out armv7, $(UniversalArchs.cc_kext))
UniversalArchs.cc_kext_ios5 := $(filter-out armv7, $(UniversalArchs.cc_kext_ios5))
UniversalArchs.profile_ios := $(filter-out armv7, $(UniversalArchs.profile_ios))
endif
-endif
# If RC_SUPPORTED_ARCHS is defined, treat it as a list of the architectures we
# are intended to support and limit what we try to build to that.