Fix the build under Debian GNU/Hurd.
Thanks to Pino Toscano for the patch
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154500 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/Unix/Path.inc b/lib/Support/Unix/Path.inc
index b85b574..ddc1e0f 100644
--- a/lib/Support/Unix/Path.inc
+++ b/lib/Support/Unix/Path.inc
@@ -60,6 +60,11 @@
#include <mach-o/dyld.h>
#endif
+// For GNU Hurd
+#if defined(__GNU__) && !defined(MAXPATHLEN)
+# define MAXPATHLEN 4096
+#endif
+
// Put in a hack for Cygwin which falsely reports that the mkdtemp function
// is available when it is not.
#ifdef __CYGWIN__