From: Jim Meyering <jim@meyering.net>
Date: Sat, 16 Feb 2002 08:23:10 +0000 (+0000)
Subject: (jm_PREREQ_POSIXVER): New macro.
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=abd0e537083f12e5e0cf87b567f7c35358b26418;p=pspp

(jm_PREREQ_POSIXVER): New macro.
(jm_PREREQ): Use it.
---

diff --git a/m4/prereq.m4 b/m4/prereq.m4
index 376b056405..9a73829cc0 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)