pcsx2/cmake/ApiValidation.cmake

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CMake
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set(wx_sdl_c_code "
#include <wx/setup.h>
#if (wxUSE_LIBSDL != 0)
#error cmake_WX_SDL
#endif
")
function(WX_vs_SDL)
file(WRITE "${CMAKE_BINARY_DIR}/wx_sdl.c" "${wx_sdl_c_code}")
enable_language(C)
try_run(
run_result_unused
compile_result_unused
"${CMAKE_BINARY_DIR}"
"${CMAKE_BINARY_DIR}/wx_sdl.c"
COMPILE_OUTPUT_VARIABLE OUT
CMAKE_FLAGS "-DINCLUDE_DIRECTORIES:STRING=${wxWidgets_INCLUDE_DIRS}"
)
if (${OUT} MATCHES "cmake_WX_SDL" AND SDL2_API)
message(FATAL_ERROR "WxWidget is linked to SDL (wxUSE_LIBSDL) and it is likely SDL1.2.
Unfortunately you try to build PCSX2 with SDL2 support which is not compatible
Please use -DSDL2_API=FALSE")
endif()
endfunction()