From 6291635890a444ddcf06ce126e60e9aed01ca689 Mon Sep 17 00:00:00 2001
From: Jim Meyering <jim@meyering.net>
Date: Tue, 4 Sep 2001 20:22:27 +0000
Subject: [PATCH] (jm_PREREQ_XREADLINK): New macro. (jm_PREREQ): Use it.

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

diff --git a/m4/prereq.m4 b/m4/prereq.m4
index 62b8cf89f7..eeaf32d878 100644
--- a/m4/prereq.m4
+++ b/m4/prereq.m4
@@ -20,6 +20,7 @@ AC_DEFUN([jm_PREREQ],
   jm_PREREQ_REGEX
   jm_PREREQ_TEMPNAME # called by mkstemp
   jm_PREREQ_XGETCWD
+  jm_PREREQ_XREADLINK
 ])
 
 AC_DEFUN([jm_PREREQ_ADDEXT],
@@ -148,3 +149,9 @@ AC_DEFUN([jm_PREREQ_XGETCWD],
   AC_CHECK_FUNCS(getcwd)
   AC_FUNC_GETCWD_NULL
 ])
+
+AC_DEFUN([jm_PREREQ_XREADLINK],
+[
+  AC_C_PROTOTYPES
+  AC_CHECK_HEADERS(limits.h stdlib.h sys/types.h unistd.h)
+])
-- 
2.30.2