From 512514ca23c70f9f912eff9336853e3120074267 Mon Sep 17 00:00:00 2001
From: Bill Currie <bill@taniwha.org>
Date: Mon, 3 Feb 2014 16:55:09 +0900
Subject: [PATCH] Limit gcc_struct checking to win32 builds.

I guess -Werror isn't used when doing compile checks.
---
 config.d/typedefs_structs_compiler.m4 | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/config.d/typedefs_structs_compiler.m4 b/config.d/typedefs_structs_compiler.m4
index a25fb7941..a68df83b8 100644
--- a/config.d/typedefs_structs_compiler.m4
+++ b/config.d/typedefs_structs_compiler.m4
@@ -53,15 +53,17 @@ AH_VERBATIM([HAVE___ATTRIBUTE__VISIBILITY],
 # define VISIBLE
 #endif])
 
-AC_MSG_CHECKING(for __attribute__ ((gcc_struct)))
-AC_TRY_COMPILE(
-	[void foo (void);
-	typedef struct { int foo; } __attribute__ ((gcc_struct)) gcc_struct_test;],
-	[],
-	AC_DEFINE(HAVE___ATTRIBUTE__GCC_STRUCT)
-	AC_MSG_RESULT(yes),
-	AC_MSG_RESULT(no)
-)
+if test "x$SYSTYPE" = "xWIN32"; then
+	AC_MSG_CHECKING(for __attribute__ ((gcc_struct)))
+	AC_TRY_COMPILE(
+		[typedef struct { int foo; }
+		__attribute__ ((gcc_struct)) gcc_struct_test;],
+		[],
+		AC_DEFINE(HAVE___ATTRIBUTE__GCC_STRUCT)
+		AC_MSG_RESULT(yes),
+		AC_MSG_RESULT(no)
+	)
+fi
 AH_VERBATIM([HAVE___ATTRIBUTE__GCC_STRUCT],
 [/* Define this if the GCC gcc_struct __attribute__ is available */
 #undef HAVE___ATTRIBUTE__GCC_STRUCT