gawk acinclude.m4 shouldn't use `sinclude' with Autoconf 2.5x

[Paul Eggert]

This is an update to my May 20 message entitled "Re: gawk 3.1.1 has
bad configure check for mmap() on Solaris" which submitted a patch to
upgrade Gawk 3.1.1 to Autoconf 2.53 and Automake 1.6.1.

Akim Demaille just pointed out to me that the m4 directive "sinclude"
has been deprecated in the Autoconf documentation ever since Autoconf
2.49a.  It looks like "sinclude" will finally be removed in Autoconf
2.54 because it is causing some problems in other areas.  Gawk is the
only GNU program that we found that still uses "sinclude".  Here is a
patch to upgrade Gawk to the new naming convention.

2002-06-07  Paul Eggert  <address@hidden>

        * acinclude.m4: Use m4_sinclude, not sinclude, as suggested by
        Autoconf since 2.49a, and it looks like it will be required by
        Autoconf 2.54.

diff -pru gawk-3.1.1-autoconf/acinclude.m4 
gawk-3.1.1-autoconf-sinclude/acinclude.m4
--- gawk-3.1.1-autoconf/acinclude.m4    2000-09-05 08:22:31.000000000 -0700
+++ gawk-3.1.1-autoconf-sinclude/acinclude.m4   2002-06-07 10:29:37.140760000 
-0700
@@ -1,8 +1,8 @@
-sinclude(arch.m4)dnl
-sinclude(gettext.m4)dnl
-sinclude(jm-mktime.m4)dnl
-sinclude(largefile.m4)dnl
-sinclude(lcmessage.m4)dnl
-sinclude(progtest.m4)dnl
-sinclude(socket.m4)dnl
-sinclude(strtod.m4)dnl
+m4_sinclude(arch.m4)dnl
+m4_sinclude(gettext.m4)dnl
+m4_sinclude(jm-mktime.m4)dnl
+m4_sinclude(largefile.m4)dnl
+m4_sinclude(lcmessage.m4)dnl
+m4_sinclude(progtest.m4)dnl
+m4_sinclude(socket.m4)dnl
+m4_sinclude(strtod.m4)dnl