From: Daniel Arndt Date: Wed, 8 Feb 2023 21:49:11 +0000 (-0500) Subject: Use try_compile in macro_check_compiler_setup.cmake X-Git-Tag: v9.5.0-rc1~550^2 X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8d7c13a346937eb4020c2b0b0522aa01a53c5d6e;p=dealii.git Use try_compile in macro_check_compiler_setup.cmake --- diff --git a/cmake/macros/check_compiler_setup/CMakeLists.txt b/cmake/macros/check_compiler_setup/CMakeLists.txt new file mode 100644 index 0000000000..53c61e673a --- /dev/null +++ b/cmake/macros/check_compiler_setup/CMakeLists.txt @@ -0,0 +1,8 @@ +project(CheckCompilerSetup) +cmake_minimum_required(VERSION 3.13.4) +add_executable(CheckCompilerSetupExec dummy.cpp) + +target_compile_options(CheckCompilerSetupExec PRIVATE ${TEST_COMPILE_FLAGS}) +set_property(TARGET CheckCompilerSetupExec PROPERTY LINK_FLAGS "${TEST_LINK_OPTIONS}") +target_link_libraries(CheckCompilerSetupExec ${TEST_LINK_LIBRARIES}) + diff --git a/cmake/macros/check_compiler_setup/dummy.cpp b/cmake/macros/check_compiler_setup/dummy.cpp new file mode 100644 index 0000000000..1075f35dee --- /dev/null +++ b/cmake/macros/check_compiler_setup/dummy.cpp @@ -0,0 +1 @@ +int main(){ return 0; } diff --git a/cmake/macros/macro_check_compiler_setup.cmake b/cmake/macros/macro_check_compiler_setup.cmake index 2873665853..c86045624f 100644 --- a/cmake/macros/macro_check_compiler_setup.cmake +++ b/cmake/macros/macro_check_compiler_setup.cmake @@ -32,6 +32,8 @@ macro(check_compiler_setup _compiler_flags_unstr _linker_flags_unstr _var) string(STRIP "${_compiler_flags_unstr}" _compiler_flags) string(STRIP "${_linker_flags_unstr}" _linker_flags) + separate_arguments(_compiler_flags) + # # Rerun this test if flags have changed: # @@ -49,13 +51,23 @@ macro(check_compiler_setup _compiler_flags_unstr _linker_flags_unstr _var) ) set(CACHED_${_var}_ARGN "${ARGN}" CACHE INTERNAL "" FORCE) - set(CMAKE_REQUIRED_FLAGS "${_compiler_flags} ${_linker_flags}") - set(CMAKE_REQUIRED_LIBRARIES ${ARGN}) + message(STATUS "Testing ${_var}") - CHECK_CXX_SOURCE_COMPILES("int main(){ return 0; }" ${_var}) - reset_cmake_required() + try_compile( + ${_var} + ${CMAKE_CURRENT_BINARY_DIR}/check_compiler_setup/CheckCompilerSetup${_var} + ${CMAKE_CURRENT_SOURCE_DIR}/cmake/macros/check_compiler_setup + CheckCompilerSetup${_var} + CMAKE_FLAGS "-DTEST_COMPILE_FLAGS=${_compiler_flags}" + "-DTEST_LINK_OPTIONS=${_linker_flags}" + "-DTEST_LINK_LIBRARIES=${ARGN}" + "-DCMAKE_VERBOSE_MAKEFILE=ON" + OUTPUT_VARIABLE _output) if(${_var}) set(${_var} TRUE CACHE INTERNAL "") + file(REMOVE_RECURSE ${CMAKE_CURRENT_BINARY_DIR}/check_compiler_setup/CheckCompilerSetup${var}) + else() + message(STATUS "Compiler setup check for ${_var} failed with:\n${_output}") endif() endmacro()