File fix-compile-gcc5.patch of Package openarena

diff -Nur openarena-engine-source-0.8.8/code/qcommon/vm_x86.c new/code/qcommon/vm_x86.c
--- openarena-engine-source-0.8.8/code/qcommon/vm_x86.c	2011-12-24 13:29:32.000000000 +0100
+++ new/code/qcommon/vm_x86.c	2016-05-24 10:41:54.251807858 +0200
@@ -91,7 +91,7 @@
 static void (*const asmCallPtr)(void) = AsmCall;
 
 
-static	int		callMask = 0;
+static	int	__attribute__((used)) callMask = 0;
 
 static	int	instruction, pass;
 static	int	lastConst = 0;