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[cmake] Add an option to prefer public SDK in find_darwin_sdk_dir 

Adds a CMake option DARWIN_PREFER_PUBLIC_SDK, off by default. When on, this prefers to use the public SDK, even when an internal one is present. With this, it's easy to emulate a build that the public buildbots are doing.

Differential Revision: https://reviews.llvm.org/D35071

llvm-svn: 307330
This commit is contained in:
Kuba Mracek 2017-07-06 23:09:16 +00:00
parent 6b030ab461
commit 935243486c
1 changed files with 11 additions and 8 deletions
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19
compiler-rt/cmake/Modules/CompilerRTDarwinUtils.cmake
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@ -4,14 +4,17 @@ include(CMakeParseArguments)
# set the default Xcode to use. This function finds the SDKs that are present in
# the current Xcode.
function(find_darwin_sdk_dir var sdk_name)
# Let's first try the internal SDK, otherwise use the public SDK.
execute_process(
COMMAND xcodebuild -version -sdk ${sdk_name}.internal Path
RESULT_VARIABLE result_process
OUTPUT_VARIABLE var_internal
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_FILE /dev/null
)
set(DARWIN_PREFER_PUBLIC_SDK OFF CACHE BOOL "Prefer Darwin public SDK, even when an internal SDK is present.")
if(NOT DARWIN_PREFER_PUBLIC_SDK)
# Let's first try the internal SDK, otherwise use the public SDK.
execute_process(
COMMAND xcodebuild -version -sdk ${sdk_name}.internal Path
RESULT_VARIABLE result_process
OUTPUT_VARIABLE var_internal
OUTPUT_STRIP_TRAILING_WHITESPACE
ERROR_FILE /dev/null
)
endif()
if((NOT result_process EQUAL 0) OR "" STREQUAL "${var_internal}")
execute_process(
COMMAND xcodebuild -version -sdk ${sdk_name} Path