From 672282fe317ad9166826cd5378eb8a70ba471164 Mon Sep 17 00:00:00 2001
From: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Date: Tue, 13 Jan 2015 11:02:27 +0100
Subject: [PATCH] configure: add check for GNU indent

Only GNU indent is supported when indenting format_pack.c and
format_unpack.c files. Some non-GNU indent (Mac OS X and FreeBSD) add
extra whitespaces than break the build of those files.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=88335

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
---
 configure.ac | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index d4cf4b8..dd00b2c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -73,7 +73,13 @@ AX_PROG_FLEX([],
 
 AC_CHECK_PROG(INDENT, indent, indent, cat)
 if test "x$INDENT" != "xcat"; then
-    AC_SUBST(INDENT_FLAGS, '-i4 -nut -br -brs -npcs -ce -TGLubyte -TGLbyte -TBool')
+    # Only GNU indent is supported
+    INDENT_VERSION=`indent --version | grep GNU`
+    if test $? -eq 0; then
+       AC_SUBST(INDENT_FLAGS, '-i4 -nut -br -brs -npcs -ce -TGLubyte -TGLbyte -TBool')
+    else
+       INDENT="cat"
+    fi
 fi
 
 AX_CHECK_PYTHON_MAKO_MODULE(0.7.3)
-- 
2.1.0