check_c_source_compiles("int main() {
  return __builtin_cpu_supports(\"sse2\");
}" HAVE_BUILTIN_CPU_SUPPORTS)

check_c_source_compiles("#include <stdio.h>
int main() {
  __builtin_cpu_init();
  printf(\"%d\", __builtin_cpu_supports(\"sse3\"));
}" HAVE_BUILTIN_CPU_SUPPORTS)

add_definitions("-DHAVE_BUILTIN_CPU_SUPPORTS")

endif(HAVE_BUILTIN_CPU_SUPPORTS)

MESSAGE(STATUS "Does the compiler support __builtin_cpu_supports(): ${HAVE_BUILTIN_CPU_SUPPORTS}")