From 5c50539503f9dbef71c1df3eeebde7d12ce5bad9 Mon Sep 17 00:00:00 2001
From: Joerg Sonnenberger <joerg@bec.de>
Date: Thu, 29 Sep 2016 21:07:57 +0000
Subject: HAVE_UNWIND_BACKTRACE -> HAVE__UNWIND_BACKTRACE Check for existance
 and not truth value.

llvm-svn: 282767
---
 llvm/lib/Support/Unix/Signals.inc | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

(limited to 'llvm/lib/Support')

diff --git a/llvm/lib/Support/Unix/Signals.inc b/llvm/lib/Support/Unix/Signals.inc
index 4661fd68657..3d921fd2e87 100644
--- a/llvm/lib/Support/Unix/Signals.inc
+++ b/llvm/lib/Support/Unix/Signals.inc
@@ -43,7 +43,7 @@
 #if HAVE_LINK_H
 #include <link.h>
 #endif
-#if HAVE_UNWIND_BACKTRACE
+#ifdef HAVE__UNWIND_BACKTRACE
 // FIXME: We should be able to use <unwind.h> for any target that has an
 // _Unwind_Backtrace function, but on FreeBSD the configure test passes
 // despite the function not existing, and on Android, <unwind.h> conflicts
@@ -51,7 +51,7 @@
 #ifdef __GLIBC__
 #include <unwind.h>
 #else
-#undef HAVE_UNWIND_BACKTRACE
+#undef HAVE__UNWIND_BACKTRACE
 #endif
 #endif
 
@@ -355,7 +355,7 @@ static bool findModulesAndOffsets(void **StackTrace, int Depth,
 }
 #endif // defined(HAVE_BACKTRACE) && defined(ENABLE_BACKTRACES) && ...
 
-#if defined(ENABLE_BACKTRACES) && defined(HAVE_UNWIND_BACKTRACE)
+#if defined(ENABLE_BACKTRACES) && defined(HAVE__UNWIND_BACKTRACE)
 static int unwindBacktrace(void **StackTrace, int MaxEntries) {
   if (MaxEntries < 0)
     return 0;
@@ -401,7 +401,7 @@ void llvm::sys::PrintStackTrace(raw_ostream &OS) {
   if (!depth)
     depth = backtrace(StackTrace, static_cast<int>(array_lengthof(StackTrace)));
 #endif
-#if defined(HAVE_UNWIND_BACKTRACE)
+#if defined(HAVE__UNWIND_BACKTRACE)
   // Try _Unwind_Backtrace() if backtrace() failed.
   if (!depth)
     depth = unwindBacktrace(StackTrace,
-- 
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