1#include <cstdio>
 2#include "llvm/Config/llvm-config.h"
 3
 4#define NUM_VERSION (((LLVM_VERSION_MAJOR) << 16) + (LLVM_VERSION_MINOR << 8) + LLVM_VERSION_PATCH)
 5#define pass int main() {printf("%x\n", NUM_VERSION); return 0;}
 6
 7#if NUM_VERSION >= 0x030900
 8pass
 9#else
10# error This LLVM is not tested yet.
11#endif