From 9f03adc74fa06e9559e8bb85f1cfd942397328b5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fatih=20A=C5=9F=C4=B1c=C4=B1?= <fatih.asici@gmail.com>
Date: Wed, 24 Dec 2014 17:29:11 +0200
Subject: [PATCH] logging: Check if uClibc has backtrace support

execinfo.h is optional in uClibc. We need to check
__UCLIBC_HAS_BACKTRACE__ if uClibc is used.

Change-Id: Ie28be85b0b70472df1fc4a208581bb66ad34229e
Sent-Upstream: https://codereview.qt-project.org/#/c/102628/
Signed-off-by: Fatih Aşıcı <fatih.asici@gmail.com>
---
 src/corelib/global/qlogging.cpp | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/src/corelib/global/qlogging.cpp b/src/corelib/global/qlogging.cpp
index 50d35a6..fa897d6 100644
--- a/src/corelib/global/qlogging.cpp
+++ b/src/corelib/global/qlogging.cpp
@@ -77,14 +77,21 @@
 #endif
 
 #if !defined QT_NO_REGULAREXPRESSION && !defined(QT_BOOTSTRAPPED)
-#  if (defined(__GLIBC__) && defined(__GLIBCXX__)) || (__has_include(<cxxabi.h>) && __has_include(<execinfo.h>))
+#  ifdef __UCLIBC__
+#    if __UCLIBC_HAS_BACKTRACE__
+#      define QLOGGING_HAVE_BACKTRACE
+#    endif
+#  elif (defined(__GLIBC__) && defined(__GLIBCXX__)) || (__has_include(<cxxabi.h>) && __has_include(<execinfo.h>))
 #    define QLOGGING_HAVE_BACKTRACE
-#    include <qregularexpression.h>
-#    include <cxxabi.h>
-#    include <execinfo.h>
 #  endif
 #endif
 
+#ifdef QLOGGING_HAVE_BACKTRACE
+#  include <qregularexpression.h>
+#  include <cxxabi.h>
+#  include <execinfo.h>
+#endif
+
 #include <stdio.h>
 
 QT_BEGIN_NAMESPACE
-- 
1.9.1