include(CheckCSourceCompiles) | |
include(CMakePushCheckState) | |
function(_internal_check_cpu_architecture macro_check NAME VARIABLE) | |
cmake_push_check_state(RESET) | |
string(TOUPPER "${NAME}" UPPER_NAME) | |
set(CACHE_VARIABLE "CHECK_CPU_ARCHITECTURE_${UPPER_NAME}") | |
set(test_src " | |
int main(int argc, char *argv[]) { | |
#if ${macro_check} | |
return 0; | |
#else | |
choke | |
#endif | |
} | |
") | |
check_c_source_compiles("${test_src}" "${CACHE_VARIABLE}") | |
cmake_pop_check_state() | |
if(${CACHE_VARIABLE}) | |
set(${VARIABLE} "TRUE" PARENT_SCOPE) | |
else() | |
set(${VARIABLE} "FALSE" PARENT_SCOPE) | |
endif() | |
endfunction() | |
function(check_cpu_architecture ARCH VARIABLE) | |
if(ARCH STREQUAL "x86") | |
_internal_check_cpu_architecture("defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) ||defined( __i386) || defined(_M_IX86)" x86 ${VARIABLE}) | |
elseif(ARCH STREQUAL "x64") | |
_internal_check_cpu_architecture("defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__x86_64) || defined(_M_X64) || defined(_M_AMD64)" x64 ${VARIABLE}) | |
elseif(ARCH STREQUAL "arm32") | |
_internal_check_cpu_architecture("defined(__arm__) || defined(_M_ARM)" arm32 ${VARIABLE}) | |
elseif(ARCH STREQUAL "arm64") | |
_internal_check_cpu_architecture("defined(__aarch64__) || defined(_M_ARM64)" arm64 ${VARIABLE}) | |
else() | |
message(WARNING "Unknown CPU architectures (${ARCH}).") | |
set(${VARIABLE} FALSE) | |
endif() | |
set("${VARIABLE}" "${${VARIABLE}}" PARENT_SCOPE) | |
endfunction() |