diff options
| author | Joerg Sonnenberger <joerg@bec.de> | 2012-01-03 19:22:38 +0000 |
|---|---|---|
| committer | Joerg Sonnenberger <joerg@bec.de> | 2012-01-03 19:22:38 +0000 |
| commit | f84d560fc73c9177af9081a0edf6726e43ec3a63 (patch) | |
| tree | 253e6c7a7f45df840a20b04a655c594a1c38c046 | |
| parent | e23dcf3524fe01208cc79e707412f0a5dd8eed7b (diff) | |
Don't depend on undefined macros being 0, there are options for the
preprocessor to warn about it.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147466 91177308-0d34-0410-b5e6-96231b3b80d8
| -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 |