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-rw-r--r--m4/ChangeLog4
-rw-r--r--m4/getopt.m49
2 files changed, 10 insertions, 3 deletions
diff --git a/m4/ChangeLog b/m4/ChangeLog
index e4b05c4ff..d52ffc557 100644
--- a/m4/ChangeLog
+++ b/m4/ChangeLog
@@ -1,3 +1,7 @@
+2006-01-23 Paul Eggert <eggert@cs.ucla.edu>
+
+ * getopt.m4 (gl_PREREQ_GETOPT): Check for getenv decl.
+
2006-01-20 Paul Eggert <eggert@cs.ucla.edu>
* lib-ignore.m4 (gl_IGNORE_UNUSED_LIBRARIES): Use -Wl,-z,ignore
diff --git a/m4/getopt.m4 b/m4/getopt.m4
index 6b98782c4..e60b7469b 100644
--- a/m4/getopt.m4
+++ b/m4/getopt.m4
@@ -1,5 +1,5 @@
-# getopt.m4 serial 11
-dnl Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc.
+# getopt.m4 serial 12
+dnl Copyright (C) 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
@@ -77,4 +77,7 @@ AC_DEFUN([gl_GETOPT_IFELSE],
AC_DEFUN([gl_GETOPT], [gl_GETOPT_IFELSE([gl_GETOPT_SUBSTITUTE])])
# Prerequisites of lib/getopt*.
-AC_DEFUN([gl_PREREQ_GETOPT], [:])
+AC_DEFUN([gl_PREREQ_GETOPT],
+[
+ AC_CHECK_DECLS_ONCE([getenv])
+])