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FindMatlab: Silence warnings for mex version file

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This adds -w to to the version source file's compile options.
Currently, this is done for Clang and compilers officially supported by
Matlab.

Fixes: #24851
This commit is contained in:
Hermann von Kleist 2024-02-06 10:58:34 +01:00
parent e1a3752c5e
commit 0576913aff
1 changed files with 13 additions and 0 deletions
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13
Modules/FindMatlab.cmake
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@ -1109,14 +1109,27 @@ function(matlab_add_mex)
endif()
if(NOT Matlab_VERSION_STRING VERSION_LESS "9.1") # For 9.1 (R2016b) and newer, add version source file
# Compilers officially supported by Matlab 9.1 (R2016b):
# MinGW 4.9, MSVC 2012, Intel C++ 2013, Xcode 6, GCC 4.9
# These compilers definitely support the -w flag to suppress warnings.
# Other compilers (Clang) may support the -w flag and can be added here.
set(_Matlab_silenceable_compilers AppleClang Clang GNU Intel IntelLLVM MSVC)
# Add the correct version file depending on which languages are enabled in the project
if(CMAKE_C_COMPILER_LOADED)
# If C is enabled, use the .c file as it will work fine also with C++
set(MEX_VERSION_FILE "${Matlab_ROOT_DIR}/extern/version/c_mexapi_version.c")
# Silence warnings for version source file
if("${CMAKE_C_COMPILER_ID}" IN_LIST _Matlab_silenceable_compilers)
set_source_files_properties("${MEX_VERSION_FILE}" PROPERTIES COMPILE_OPTIONS -w)
endif()
elseif(CMAKE_CXX_COMPILER_LOADED)
# If C is not enabled, check if CXX is enabled and use the .cpp file
# to avoid that the .c file is silently ignored
set(MEX_VERSION_FILE "${Matlab_ROOT_DIR}/extern/version/cpp_mexapi_version.cpp")
if("${CMAKE_CXX_COMPILER_ID}" IN_LIST _Matlab_silenceable_compilers)
set_source_files_properties("${MEX_VERSION_FILE}" PROPERTIES COMPILE_OPTIONS -w)
endif()
else()
# If neither C or CXX is enabled, warn because we cannot add the source.
# TODO: add support for fortran mex files