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[compiler-rt][macOS]: Disable iOS support if iOS SDK is not found

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If you are missing the iOS SDK on your macOS (for example you don't have
full Xcode but just CommandLineTools) then CMake currently errors
out without a helpful message. This patch disables iOS support in
compiler-rt if the iOS SDK is not found. This can be overriden by
passing -DCOMPILER_RT_ENABLE_IOS=ON.

Reviewed By: delcypher, thetruestblue

Differential Revision: https://reviews.llvm.org/D133273
This commit is contained in:
Tobias Hieta 2023-02-08 08:11:34 +01:00 committed by Tobias Hieta
parent b4431b2d94
commit 78fb02107a
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GPG Key ID: 44F2485E45D59042
1 changed files with 13 additions and 1 deletions
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14
compiler-rt/cmake/base-config-ix.cmake
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@ -8,6 +8,7 @@ include(CheckIncludeFile)
include(CheckCXXSourceCompiles)
include(GNUInstallDirs)
include(ExtendPath)
include(CompilerRTDarwinUtils)
check_include_file(unwind.h HAVE_UNWIND_H)
@ -145,7 +146,18 @@ if(APPLE)
"-darwin-target-variant" "x86_64-apple-ios13.1-macabi"
"-Werror")
option(COMPILER_RT_ENABLE_MACCATALYST "Enable building for Mac Catalyst" ${COMPILER_RT_HAS_DARWIN_TARGET_VARIANT_FLAG})
option(COMPILER_RT_ENABLE_IOS "Enable building for iOS" On)
# Don't enable COMPILER_RT_ENABLE_IOS if we can't find the sdk dir.
# This can happen when you only have the commandline tools installed
# which doesn't come with the iOS SDK.
find_darwin_sdk_dir(HAS_IOS_SDK "iphoneos")
set(COMPILER_RT_ENABLE_IOS_DEFAULT On)
if("${HAS_IOS_SDK}" STREQUAL "")
message(WARNING "iOS SDK not found! Building compiler-rt without iOS support.")
set(COMPILER_RT_ENABLE_IOS_DEFAULT Off)
endif()
option(COMPILER_RT_ENABLE_IOS "Enable building for iOS" ${COMPILER_RT_ENABLE_IOS_DEFAULT})
option(COMPILER_RT_ENABLE_WATCHOS "Enable building for watchOS - Experimental" Off)
option(COMPILER_RT_ENABLE_TVOS "Enable building for tvOS - Experimental" Off)