From: Paul Eggert <eggert@cs.ucla.edu>
Date: Mon, 8 Sep 2003 00:55:50 +0000 (+0000)
Subject: (AC_SYS_RESTARTABLE_SYSCALLS):
X-Git-Tag: AUTOCONF-2.57c~10
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=eb767047cafca86704e5782591e4a2ac992b8864;p=thirdparty%2Fautoconf.git

(AC_SYS_RESTARTABLE_SYSCALLS):
Improve the accuracy of the wording about obsolescence.
---

diff --git a/lib/autoconf/specific.m4 b/lib/autoconf/specific.m4
index 85e4c99d..9b57442b 100644
--- a/lib/autoconf/specific.m4
+++ b/lib/autoconf/specific.m4
@@ -252,9 +252,10 @@ fi
 # interrupted by a signal, define `HAVE_RESTARTABLE_SYSCALLS'.
 AC_DEFUN([AC_SYS_RESTARTABLE_SYSCALLS],
 [AC_DIAGNOSE([obsolete],
-[$0: System call restartability is now typically set at runtime.
-Remove this `AC_SYS_RESTARTABLE_SYSCALLS'
-and adjust your code to use `sigaction' with `SA_RESTART' instead.])dnl
+[$0: AC_SYS_RESTARTABLE_SYSCALLS is useful only when supporting very
+old systems that lack `sigaction' and `SA_RESTART'.  Don't bother with
+this macro unless you need to support very old systems like 4.2BSD and
+SVR3.])dnl
 AC_REQUIRE([AC_HEADER_SYS_WAIT])dnl
 AC_CHECK_HEADERS(unistd.h)
 AC_CACHE_CHECK(for restartable system calls, ac_cv_sys_restartable_syscalls,