From 7592628e4889708dd1bfe480cf5dc0b26d8a2faa Mon Sep 17 00:00:00 2001
From: Jim Meyering <jim@meyering.net>
Date: Sat, 16 Feb 2002 08:23:10 +0000
Subject: (jm_PREREQ_POSIXVER): New macro. (jm_PREREQ): Use it.

---
 m4/prereq.m4 | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'm4/prereq.m4')

diff --git a/m4/prereq.m4 b/m4/prereq.m4
index 376b05640..9a73829cc 100644
--- a/m4/prereq.m4
+++ b/m4/prereq.m4
@@ -16,6 +16,7 @@ AC_DEFUN([jm_PREREQ],
   jm_PREREQ_MBSWIDTH
   jm_PREREQ_MEMCHR
   jm_PREREQ_PHYSMEM
+  jm_PREREQ_POSIXVER
   jm_PREREQ_QUOTEARG
   jm_PREREQ_READUTMP
   jm_PREREQ_REGEX
@@ -91,6 +92,12 @@ AC_DEFUN([jm_PREREQ_PHYSMEM],
   AC_CHECK_FUNCS(pstat_getstatic pstat_getdynamic)
 ])
 
+AC_DEFUN([jm_PREREQ_POSIXVER],
+[
+  AC_CHECK_HEADERS(unistd.h)
+  AC_CHECK_DECLS([getenv])
+])
+
 AC_DEFUN([jm_PREREQ_QUOTEARG],
 [
   AC_CHECK_FUNCS(isascii iswprint)
-- 
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