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cmake: fix Metal detection 

Confirmed to work on:
macOS 10.15.7
XCode Version 12.4 (12D4e)
main
Eric Wasylishen 2021-11-26 18:27:34 -07:00 committed by Ryan C. Gordon
parent 8ceba27d62
commit 71e06a536a
1 changed files with 2 additions and 8 deletions
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10
CMakeLists.txt
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@ -1992,9 +1992,7 @@ elseif(APPLE)
endif() endif()
if(SDL_VULKAN OR SDL_METAL OR SDL_RENDER_METAL) if(SDL_VULKAN OR SDL_METAL OR SDL_RENDER_METAL)
set(ORIG_CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS}) check_objc_source_compiles("
set(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -ObjC")
check_c_source_compiles("
#include <AvailabilityMacros.h> #include <AvailabilityMacros.h>
#import <Metal/Metal.h> #import <Metal/Metal.h>
#import <QuartzCore/CAMetalLayer.h> #import <QuartzCore/CAMetalLayer.h>
@ -2002,11 +2000,7 @@ elseif(APPLE)
#if (!TARGET_CPU_X86_64 && !TARGET_CPU_ARM64) #if (!TARGET_CPU_X86_64 && !TARGET_CPU_ARM64)
#error Metal doesn't work on this configuration #error Metal doesn't work on this configuration
#endif #endif
int main(void) { int main(void) {}" HAVE_FRAMEWORK_METAL)
return 0;
}
" HAVE_FRAMEWORK_METAL)
set(CMAKE_REQUIRED_FLAGS ${ORIG_CMAKE_REQUIRED_FLAGS})
if(HAVE_FRAMEWORK_METAL) if(HAVE_FRAMEWORK_METAL)
set(SDL_FRAMEWORK_METAL 1) set(SDL_FRAMEWORK_METAL 1)
set(SDL_FRAMEWORK_QUARTZCORE 1) set(SDL_FRAMEWORK_QUARTZCORE 1)