X-Git-Url: https://git.distorted.org.uk/~mdw/runlisp/blobdiff_plain/fb2149fc2dc1d5f4936b2af31be7c7bd02f83324..0bef29cbe2f62ebe6b69faffc29c0634a21b814e:/m4/mdw-decl-environ.m4

diff --git a/m4/mdw-decl-environ.m4 b/m4/mdw-decl-environ.m4
index 880e499..52138e1 100644
--- a/m4/mdw-decl-environ.m4
+++ b/m4/mdw-decl-environ.m4
@@ -1,17 +1,45 @@
 dnl -*-autoconf-*-
 
-dnl --- *@-mdw_DECL_ENVIRON-@* ---
-dnl
-dnl Author:	Mark Wooding
-dnl
-dnl Synopsis:	mdw_DECL_ENVIRON
-dnl
-dnl Arguments:	---
-dnl
-dnl Use:	Searches for a declaration of the global `environ' variable.
-dnl		If one is found in one of the `usual' places, DECL_ENVIRON
-dnl		is defined as a preprocessor symbol.
+### SYNOPSIS
+###
+###   mdw_DECL_ENVIRON
+###
+### DESCRIPTION
+###
+###   Define a preprocessor symbol `DECL_ENVIRON' if the `environ' vector is
+###   declared in one of the `usual' places.
+###
+### LICENSE
+###
+###   Copyright (c) 1999 Mark Wooding <mdw@distorted.org.uk>
+###
+###   This program is free software: you can redistribute it and/or modify it
+###   under the terms of the GNU General Public License as published by the
+###   Free Software Foundation, either version 2 of the License, or (at your
+###   option) any later version.
+###
+###   This program is distributed in the hope that it will be useful, but
+###   WITHOUT ANY WARRANTY; without even the implied warranty of
+###   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+###   General Public License for more details.
+###
+###   You should have received a copy of the GNU General Public License along
+###   with this program. If not, see <http://www.gnu.org/licenses/>.
+###
+###   As a special exception, the respective Autoconf Macro's copyright owner
+###   gives unlimited permission to copy, distribute and modify the configure
+###   scripts that are the output of Autoconf when processing the Macro. You
+###   need not follow the terms of the GNU General Public License when using
+###   or distributing such scripts, even though portions of the text of the
+###   Macro appear in them. The GNU General Public License (GPL) does govern
+###   all other use of the material that constitutes the Autoconf Macro.
+###
+###   This special exception to the GPL applies to versions of the Autoconf
+###   Macro released by the Autoconf Archive. When you make and distribute a
+###   modified version of the Autoconf Macro, you may extend this special
+###   exception to the GPL to apply to your modified version as well.
 
+# serial 1
 AC_DEFUN([mdw_DECL_ENVIRON],
 [AC_CACHE_CHECK([for declaration of \`environ'], mdw_cv_environ,
 [AC_EGREP_CPP([\<environ\>],