From 628e9a79f6d7b66c654d3998e8d79ab90ea874cc Mon Sep 17 00:00:00 2001
From: Johan Gustavsson <pjohangustavsson@hotmail.se>
Date: Sat, 13 Feb 2016 13:49:07 +0100
Subject: [PATCH] swiglabels.swg: added check if __GNUC__ is defined

It makes sense to check if the preprocessor definition __GNUC__ is defined before using it as a value.
---
 Lib/swiglabels.swg | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/Lib/swiglabels.swg b/Lib/swiglabels.swg
index e73e63a57..b3855665e 100644
--- a/Lib/swiglabels.swg
+++ b/Lib/swiglabels.swg
@@ -65,9 +65,11 @@
 #endif
 
 /* exporting methods */
-#if (__GNUC__ >= 4) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
-#  ifndef GCC_HASCLASSVISIBILITY
-#    define GCC_HASCLASSVISIBILITY
+#if defined(__GNUC__)
+#  if (__GNUC__ >= 4) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
+#    ifndef GCC_HASCLASSVISIBILITY
+#      define GCC_HASCLASSVISIBILITY
+#    endif
 #  endif
 #endif