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# OBS CMake macOS compiler configuration module
include_guard(GLOBAL)
option(ENABLE_COMPILER_TRACE "Enable clang time-trace" OFF)
mark_as_advanced(ENABLE_COMPILER_TRACE)
if(NOT XCODE)
message(FATAL_ERROR "Building OBS Studio on macOS requires Xcode generator.")
endif()
include(ccache)
include(compiler_common)
add_compile_options("$<$<NOT:$<COMPILE_LANGUAGE:Swift>>:-fopenmp-simd>")
# Enable selection between arm64 and x86_64 targets
if(NOT CMAKE_OSX_ARCHITECTURES)
set(CMAKE_OSX_ARCHITECTURES arm64 CACHE STRING "Build architectures for macOS" FORCE)
endif()
set_property(CACHE CMAKE_OSX_ARCHITECTURES PROPERTY STRINGS arm64 x86_64)
# Ensure recent enough Xcode and platform SDK
function(check_sdk_requirements)
set(obs_macos_minimum_sdk 15.0) # Keep in sync with Xcode
set(obs_macos_minimum_xcode 16.0) # Keep in sync with SDK
execute_process(
COMMAND xcrun --sdk macosx --show-sdk-platform-version
OUTPUT_VARIABLE obs_macos_current_sdk
RESULT_VARIABLE result
OUTPUT_STRIP_TRAILING_WHITESPACE
)
if(NOT result EQUAL 0)
message(
FATAL_ERROR
"Failed to fetch macOS SDK version. "
"Ensure that the macOS SDK is installed and that xcode-select points at the Xcode developer directory."
)
endif()
message(DEBUG "macOS SDK version: ${obs_macos_current_sdk}")
if(obs_macos_current_sdk VERSION_LESS obs_macos_minimum_sdk)
message(
FATAL_ERROR
"Your macOS SDK version (${obs_macos_current_sdk}) is too low. "
"The macOS ${obs_macos_minimum_sdk} SDK (Xcode ${obs_macos_minimum_xcode}) is required to build OBS."
)
endif()
execute_process(COMMAND xcrun --find xcodebuild OUTPUT_VARIABLE obs_macos_xcodebuild RESULT_VARIABLE result)
if(NOT result EQUAL 0)
message(
FATAL_ERROR
"Xcode was not found. "
"Ensure you have installed Xcode and that xcode-select points at the Xcode developer directory."
)
endif()
message(DEBUG "Path to xcodebuild binary: ${obs_macos_xcodebuild}")
if(XCODE_VERSION VERSION_LESS obs_macos_minimum_xcode)
message(
FATAL_ERROR
"Your Xcode version (${XCODE_VERSION}) is too low. Xcode ${obs_macos_minimum_xcode} is required to build OBS."
)
endif()
endfunction()
check_sdk_requirements()
# Enable dSYM generator for release builds
string(APPEND CMAKE_C_FLAGS_RELEASE " -g")
string(APPEND CMAKE_CXX_FLAGS_RELEASE " -g")
string(APPEND CMAKE_OBJC_FLAGS_RELEASE " -g")
string(APPEND CMAKE_OBJCXX_FLAGS_RELEASE " -g")
# Default ObjC compiler options used by Xcode:
#
# * -Wno-implicit-atomic-properties
# * -Wno-objc-interface-ivars
# * -Warc-repeated-use-of-weak
# * -Wno-arc-maybe-repeated-use-of-weak
# * -Wimplicit-retain-self
# * -Wduplicate-method-match
# * -Wshadow
# * -Wfloat-conversion
# * -Wobjc-literal-conversion
# * -Wno-selector
# * -Wno-strict-selector-match
# * -Wundeclared-selector
# * -Wdeprecated-implementations
# * -Wprotocol
# * -Werror=block-capture-autoreleasing
# * -Wrange-loop-analysis
# Default ObjC++ compiler options used by Xcode:
#
# * -Wno-non-virtual-dtor
add_compile_definitions(
$<$<NOT:$<COMPILE_LANGUAGE:Swift>>:$<$<CONFIG:DEBUG>:DEBUG>>
$<$<NOT:$<COMPILE_LANGUAGE:Swift>>:$<$<CONFIG:DEBUG>:_DEBUG>>
$<$<NOT:$<COMPILE_LANGUAGE:Swift>>:SIMDE_ENABLE_OPENMP>
)
if(ENABLE_COMPILER_TRACE)
add_compile_options(
$<$<NOT:$<COMPILE_LANGUAGE:Swift>>:-ftime-trace>
"$<$<COMPILE_LANGUAGE:Swift>:SHELL:-Xfrontend -debug-time-expression-type-checking>"
"$<$<COMPILE_LANGUAGE:Swift>:SHELL:-Xfrontend -debug-time-function-bodies>"
)
add_link_options(LINKER:-print_statistics)
endif()
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