reduce error to warning as suggested.

diff --git a/ChangeLog b/ChangeLog
index e9d2de04a24e5090b333782a1239b80ac5171ceb..ba642127abda7bf20c81e087adeea9fa6bb56a12 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,6 @@
 2010-02-14  guidod  <guidod@gmx.de>
 
+       * m4/ax_prefix_config_h.m4: reduce error to warning as suggested
        * m4/ax_check_aligned_access_required.m4: merging with derived
            macro zziplib-aligned-access.m4 by Peter Breitenlohner
 

diff --git a/m4/ax_prefix_config_h.m4 b/m4/ax_prefix_config_h.m4
index 732cbd5d5a0f72f351497595f3c78392c6bc3f01..70dee8fb4eca963fc564ae1fd59d445d03daf97f 100644 (file)
--- a/m4/ax_prefix_config_h.m4
+++ b/m4/ax_prefix_config_h.m4
@@ -86,7 +86,8 @@ dnl @author Guido U. Draheim <guidod@gmx.de>
 dnl @version 2003-07-03
 dnl @license GPLWithACException
 AC_DEFUN([AX_PREFIX_CONFIG_H],[dnl
-AC_BEFORE([AC_CONFIG_HEADERS],[$0])dnl
+AC_PROVIDE_IFELSE([AC_CONFIG_HEADERS], dnl
+   ,[warning if no AC_CONFIG_HEADERS precedes $ ])dnl 
 AC_CONFIG_COMMANDS([ifelse($1,,$PACKAGE-config.h,$1)],[dnl
 AS_VAR_PUSHDEF([_OUT],[ac_prefix_conf_OUT])dnl
 AS_VAR_PUSHDEF([_DEF],[ac_prefix_conf_DEF])dnl