From: Carl Worth <cworth@cworth.org>
Date: Thu, 17 Jun 2010 22:25:07 +0000 (-0700)
Subject: configure: Ensure that config.h can be safely included multiple times.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=60c67e46b1b0c69171929be5915bb5468a7faff6;p=mesa.git

configure: Ensure that config.h can be safely included multiple times.

Use AH_TOP and AH_BOTTOM macros so that the standard include guard
mechanisms are emitted by autoheader into the generated config.h file.
---

diff --git a/configure.ac b/configure.ac
index 74dd6618462..73ce67de3d1 100644
--- a/configure.ac
+++ b/configure.ac
@@ -30,6 +30,10 @@ m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 # Checks for library functions.
 AC_HEADER_STDC
 
+AH_TOP([#ifndef GLSL_CONFIG_H
+#define GLSL_CONFIG_H])
+AH_BOTTOM([#endif /* GLSL_CONFIG_H */])
+
 PKG_CHECK_MODULES([talloc], [talloc >= 2.0])
 
 AC_ARG_ENABLE([debug],