check_cxx_source_compiles(
      "
      #include <stddef.h>
      #include <stdlib.h>
      extern \"C\"  int posix_memalign(void **memptr, size_t alignment, size_t size) throw();
      int main() { void *m; posix_memalign(&m, 16, 1024); }
      " CHECK_STDLIB_H_HAS_POSIX_MEMALIGN_THROW)