From 53e36d333c9b619c1a5fe9a8d2d08665654b0234 Mon Sep 17 00:00:00 2001
From: Vinson Lee <vlee@freedesktop.org>
Date: Thu, 11 Oct 2012 18:19:49 -0700
Subject: build: Build on Cygwin with gnu99 instead of c99.

The GCC c99 standard on Cygwin sets __STRICT_ANSI__ and symbols such as
strdup are not available.

Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
---
 configure.ac | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index aa72523c0a5..6f851e25c1c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -172,7 +172,14 @@ esac
 
 dnl Add flags for gcc and g++
 if test "x$GCC" = xyes; then
-    CFLAGS="$CFLAGS -Wall -std=c99"
+    case "$host_os" in
+    cygwin*)
+        CFLAGS="$CFLAGS -Wall -std=gnu99"
+        ;;
+    *)
+        CFLAGS="$CFLAGS -Wall -std=c99"
+        ;;
+    esac
 
     # Enable -Werror=implicit-function-declaration and
     # -Werror=missing-prototypes, if available, or otherwise, just
-- 
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