--- qtwebengine/src/3rdparty/chromium/third_party/WebKit/Source/platform/wtf/StackUtil.cpp	2018-01-27 23:08:43.586475349 +0100
+++ qtwebengine/src/3rdparty/chromium/third_party/WebKit/Source/platform/wtf/StackUtil.cpp	2018-01-27 23:18:22.274505203 +0100
@@ -28,7 +28,7 @@
 // FIXME: On Mac OSX and Linux, this method cannot estimate stack size
 // correctly for the main thread.
 
-#if defined(__GLIBC__) || defined(OS_ANDROID) || defined(OS_FREEBSD) || \
+#if defined(OS_LINUX) || defined(OS_ANDROID) || defined(OS_FREEBSD) || \
     defined(OS_FUCHSIA)
   // pthread_getattr_np() can fail if the thread is not invoked by
   // pthread_create() (e.g., the main thread of webkit_unit_tests).
@@ -96,7 +96,7 @@
 }
 
 void* GetStackStart() {
-#if defined(__GLIBC__) || defined(OS_ANDROID) || defined(OS_FREEBSD) || \
+#if defined(OS_LINUX) || defined(OS_ANDROID) || defined(OS_FREEBSD) || \
     defined(OS_FUCHSIA)
   pthread_attr_t attr;
   int error;
