diff options
| -rw-r--r-- | lib/Headers/unwind.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Headers/unwind.h b/lib/Headers/unwind.h index 66ede93e6b..773f3e8093 100644 --- a/lib/Headers/unwind.h +++ b/lib/Headers/unwind.h @@ -23,7 +23,8 @@ /* See "Data Definitions for libgcc_s" in the Linux Standard Base.*/ -#if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1070 +#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && \ + __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ >= 1070 /* Starting in OS X Lion the SDK includes a unwind.h. We should just use it. */ #include_next <unwind.h> #else |