# HG changeset patch
# User Jim Meyering <jim@meyering.net>
# Date 979984150 0
# Node ID 2de3b4fba7422a9dfdae902d0ed686f08c651f82
# Parent  475265eee0492af1bbd1eb7fb1614a719ef34534
(jm_PREREQ): Add jm_PREREQ_HASH.
(jm_PREREQ_HASH): New function.

diff --git a/m4/prereq.m4 b/m4/prereq.m4
--- a/m4/prereq.m4
+++ b/m4/prereq.m4
@@ -1,4 +1,4 @@
-#serial 14
+#serial 15
 
 dnl These are the prerequisite macros for files in the lib/
 dnl directories of the fileutils, sh-utils, and textutils packages.
@@ -10,6 +10,7 @@
   jm_PREREQ_DIRNAME
   jm_PREREQ_ERROR
   jm_PREREQ_GETPAGESIZE
+  jm_PREREQ_HASH
   jm_PREREQ_HUMAN
   jm_PREREQ_MBSWIDTH
   jm_PREREQ_MEMCHR
@@ -53,6 +54,12 @@
   AC_CHECK_HEADERS(OS.h unistd.h)
 ])
 
+AC_DEFUN(jm_PREREQ_HASH,
+[
+  AC_CHECK_HEADERS(stdlib.h stdbool.h)
+  AC_REQUIRE([jm_CHECK_DECLS])
+])
+
 # If you use human.c, you need the following files:
 # uintmax_t.m4 inttypes_h.m4 ulonglong.m4
 AC_DEFUN(jm_PREREQ_HUMAN,