mirror of
https://github.com/reactos/CMake.git
synced 2024-11-23 11:39:48 +00:00
80f120a85f
Add entries in Modules and Modules/Platform to support Objective-C compiler determination and identification. Add Modules to check Objective-C compiler flags, source compilations, program checks, etc... Use OBJC as the designator of the language, eg: project(foo OBJC) Add various tests for Objective-C language features. Add tests to preserve C++ handling of .m and .mm files when OBJC is not a configured language. Co-Authored-By: Cristian Adam <cristian.adam@gmail.com>
95 lines
3.8 KiB
CMake
95 lines
3.8 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
|
|
# file Copyright.txt or https://cmake.org/licensing for details.
|
|
|
|
|
|
if(CMAKE_OBJC_COMPILER_FORCED)
|
|
# The compiler configuration was forced by the user.
|
|
# Assume the user has configured all compiler information.
|
|
set(CMAKE_OBJC_COMPILER_WORKS TRUE)
|
|
return()
|
|
endif()
|
|
|
|
include(CMakeTestCompilerCommon)
|
|
|
|
# work around enforced code signing and / or missing exectuable target type
|
|
set(__CMAKE_SAVED_TRY_COMPILE_TARGET_TYPE ${CMAKE_TRY_COMPILE_TARGET_TYPE})
|
|
if(_CMAKE_FEATURE_DETECTION_TARGET_TYPE)
|
|
set(CMAKE_TRY_COMPILE_TARGET_TYPE ${_CMAKE_FEATURE_DETECTION_TARGET_TYPE})
|
|
endif()
|
|
|
|
# Remove any cached result from an older CMake version.
|
|
# We now store this in CMakeCCompiler.cmake.
|
|
unset(CMAKE_OBJC_COMPILER_WORKS CACHE)
|
|
|
|
# This file is used by EnableLanguage in cmGlobalGenerator to
|
|
# determine that that selected Objective-C compiler can actually compile
|
|
# and link the most basic of programs. If not, a fatal error
|
|
# is set and cmake stops processing commands and will not generate
|
|
# any makefiles or projects.
|
|
if(NOT CMAKE_OBJC_COMPILER_WORKS)
|
|
PrintTestCompilerStatus("OBJC" "")
|
|
__TestCompiler_setTryCompileTargetType()
|
|
file(WRITE ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testOBJCCompiler.m
|
|
"#ifdef __cplusplus\n"
|
|
"# error \"The CMAKE_OBJC_COMPILER is set to a C++ compiler\"\n"
|
|
"#endif\n"
|
|
"#ifndef __OBJC__\n"
|
|
"# error \"The CMAKE_OBJC_COMPILER is not an Objective-C compiler\"\n"
|
|
"#endif\n"
|
|
"int main(int argc, char* argv[])\n"
|
|
"{ (void)argv; return argc-1;}\n")
|
|
try_compile(CMAKE_OBJC_COMPILER_WORKS ${CMAKE_BINARY_DIR}
|
|
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/testOBJCCompiler.m
|
|
OUTPUT_VARIABLE __CMAKE_OBJC_COMPILER_OUTPUT)
|
|
# Move result from cache to normal variable.
|
|
set(CMAKE_OBJC_COMPILER_WORKS ${CMAKE_OBJC_COMPILER_WORKS})
|
|
unset(CMAKE_OBJC_COMPILER_WORKS CACHE)
|
|
set(OBJC_TEST_WAS_RUN 1)
|
|
__TestCompiler_restoreTryCompileTargetType()
|
|
endif()
|
|
|
|
if(NOT CMAKE_OBJC_COMPILER_WORKS)
|
|
PrintTestCompilerStatus("OBJC" " -- broken")
|
|
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
|
|
"Determining if the Objective-C compiler works failed with "
|
|
"the following output:\n${__CMAKE_OBJC_COMPILER_OUTPUT}\n\n")
|
|
string(REPLACE "\n" "\n " _output "${__CMAKE_OBJC_COMPILER_OUTPUT}")
|
|
message(FATAL_ERROR "The Objective-C compiler\n \"${CMAKE_OBJC_COMPILER}\"\n"
|
|
"is not able to compile a simple test program.\nIt fails "
|
|
"with the following output:\n ${_output}\n\n"
|
|
"CMake will not be able to correctly generate this project.")
|
|
else()
|
|
if(OBJC_TEST_WAS_RUN)
|
|
PrintTestCompilerStatus("OBJC" " -- works")
|
|
file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
|
|
"Determining if the Objective-C compiler works passed with "
|
|
"the following output:\n${__CMAKE_OBJC_COMPILER_OUTPUT}\n\n")
|
|
endif()
|
|
|
|
# Try to identify the ABI and configure it into CMakeOBJCCompiler.cmake
|
|
include(${CMAKE_ROOT}/Modules/CMakeDetermineCompilerABI.cmake)
|
|
CMAKE_DETERMINE_COMPILER_ABI(OBJC ${CMAKE_ROOT}/Modules/CMakeOBJCCompilerABI.m)
|
|
# Try to identify the compiler features
|
|
include(${CMAKE_ROOT}/Modules/CMakeDetermineCompileFeatures.cmake)
|
|
CMAKE_DETERMINE_COMPILE_FEATURES(OBJC)
|
|
|
|
# Re-configure to save learned information.
|
|
configure_file(
|
|
${CMAKE_ROOT}/Modules/CMakeOBJCCompiler.cmake.in
|
|
${CMAKE_PLATFORM_INFO_DIR}/CMakeOBJCCompiler.cmake
|
|
@ONLY
|
|
)
|
|
include(${CMAKE_PLATFORM_INFO_DIR}/CMakeOBJCCompiler.cmake)
|
|
|
|
if(CMAKE_OBJC_SIZEOF_DATA_PTR)
|
|
foreach(f ${CMAKE_OBJC_ABI_FILES})
|
|
include(${f})
|
|
endforeach()
|
|
unset(CMAKE_OBJC_ABI_FILES)
|
|
endif()
|
|
endif()
|
|
|
|
set(CMAKE_TRY_COMPILE_TARGET_TYPE ${__CMAKE_SAVED_TRY_COMPILE_TARGET_TYPE})
|
|
unset(__CMAKE_SAVED_TRY_COMPILE_TARGET_TYPE)
|
|
unset(__CMAKE_OBJC_COMPILER_OUTPUT)
|