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Recognize the UNAME_RELEASE environment variable to match Darwin's uname.

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When this variable is set, "uname -r" will return its value instead of the
real OS version.  Make this affect LLVM's triple for consistency.
<rdar://problem/9919167>

llvm-svn: 137111
This commit is contained in:
Bob Wilson 2011-08-09 05:13:36 +00:00
parent b9ef7f9e3e
commit a97bb9535d
1 changed files with 6 additions and 0 deletions
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6
lib/Support/Unix/Host.inc
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@ -22,12 +22,18 @@
#include <sys/utsname.h>
#include <cctype>
#include <string>
#include <cstdlib> // ::getenv
using namespace llvm;
static std::string getOSVersion() {
struct utsname info;
// Recognize UNAME_RELEASE environment variable to match Darwin uname.
const char *UnameOverride = ::getenv("UNAME_RELEASE");
if (UnameOverride && UnameOverride[0] != '\0')
return UnameOverride;
if (uname(&info))
return "";