[PATCH 1/4] Split the HOST_NAME_MAX detection into a separate m4 macro

[Ben Walton]

The sethostname module will rely on this code too, so make it a
separate function.

Signed-off-by: Ben Walton <address@hidden>
---
 ChangeLog         |    5 +++++
 m4/gethostname.m4 |    9 +++++++--
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 272dded..eee02b6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2011-12-01  Ben Walton  <address@hidden>
+
+       * m4/gethostname.m4 (gl_PREREQ_HOST_NAME_MAX): Make this a separate
+       macro so it can be used by the pending sethostname module.
+
 2011-11-29  Paolo Bonzini  <address@hidden>
 
        float tests: Correct and re-enable assertion about LDBL_MIN_EXP.
diff --git a/m4/gethostname.m4 b/m4/gethostname.m4
index 8ea6329..ad93c9f 100644
--- a/m4/gethostname.m4
+++ b/m4/gethostname.m4
@@ -1,4 +1,4 @@
-# gethostname.m4 serial 12
+# gethostname.m4 serial 13
 dnl Copyright (C) 2002, 2008-2011 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -40,7 +40,12 @@ AC_DEFUN([gl_FUNC_GETHOSTNAME],
     HAVE_GETHOSTNAME=0
   fi
 
-  dnl Also provide HOST_NAME_MAX when <limits.h> lacks it.
+  gl_PREREQ_HOST_NAME_MAX
+])
+
+dnl Also provide HOST_NAME_MAX when <limits.h> lacks it.
+AC_DEFUN([gl_PREREQ_HOST_NAME_MAX], [
+
   dnl - On most Unix systems, use MAXHOSTNAMELEN from <sys/param.h> instead.
   dnl - On Solaris, Cygwin, BeOS, use MAXHOSTNAMELEN from <netdb.h> instead.
   dnl - On mingw, use 256, because
-- 
1.7.4.1