git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137204
91177308-0d34-0410-b5e6-
96231b3b80d8
struct utsname info;
#ifdef __APPLE__
- // Recognize UNAME_RELEASE environment variable to match Darwin uname.
+ // Recognize UNAME_RELEASE environment variable to match Darwin's uname,
+ // where the value of this variable sets the OS release version
+ // reported by "uname -r".
const char *UnameOverride = ::getenv("UNAME_RELEASE");
if (UnameOverride && UnameOverride[0] != '\0')
return UnameOverride;