From 96e3f63af02a4ddc944933ad14b566f130a31826 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <ludo@gnu.org>
Date: Wed, 10 Dec 2008 10:06:46 +0100
Subject: [PATCH] configure: Check for <ltdl.h>.

* configure.in: Check for <ltdl.h>, to clarify misconfigurations.
---
 configure.in | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/configure.in b/configure.in
index 55a2ff2fc..a7fd9c914 100644
--- a/configure.in
+++ b/configure.in
@@ -86,6 +86,8 @@ AC_LIBTOOL_DLOPEN
 AC_PROG_LIBTOOL
 AC_CHECK_LIB([ltdl], [lt_dlinit], ,
   [AC_MSG_ERROR([libltdl not found.  See README.])])
+AC_CHECK_HEADER([ltdl.h], [],
+  [AC_MSG_ERROR([<ltdl.h> not found.  See README.])])
 
 AC_CHECK_PROG(have_makeinfo, makeinfo, yes, no)
 AM_CONDITIONAL(HAVE_MAKEINFO, test "$have_makeinfo" = yes)