From e79c3533ecefd004daad8a27333582b2dad7f0b0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Milutin=20Jovanovi=C4=87?= <jovanovic.milutin@gmail.com>
Date: Wed, 14 Nov 2012 17:45:15 -0500
Subject: [PATCH] -Wno-unused-result now added only on gcc >= 4.4

This option does not exist in gcc 4.3 and earlier, and it breaks the build on
systems with older compilers. The makefile has been enhanced to test for the
version and adds it only if a newer compiler is detected.
---
 Makefile | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 835ede0..406695b 100644
--- a/Makefile
+++ b/Makefile
@@ -13,7 +13,18 @@ LDFLAGS_P=$(LDFLAGS)
 ifneq ($(GCC_MAJOR),2)
 CFLAGS+=-fno-strict-aliasing
 ifneq ($(GCC_MAJOR),3)
-CFLAGS+=-Wno-pointer-sign -Wno-sign-compare -Wno-unused-result
+CFLAGS+=-Wno-pointer-sign -Wno-sign-compare
+
+# add -Wno-unused-result only on gcc >= 4.4
+ifeq ($(GCC_MAJOR),4)
+GCCGREATERTHEN44 := $(shell expr `gcc -dumpversion | cut -f2 -d.` \>= 4)
+else
+GCCGREATERTHEN44 := 1
+endif
+ifeq ($(GCCGREATERTHEN44),1)
+CFLAGS+=-Wno-unused-result
+endif
+
 endif
 endif