Support circa early 2022 Gnulib

Problem reported by Frederic Berat in:
https://lists.gnu.org/r/bug-rcs/2023-04/msg00001.html
* lib/autoconf/specific.m4 (_AC_SYS_LARGEFILE_TEST_INCLUDES):
Bring back for compatibility with post-2.71, pre-2.73 Gnulib.

diff --git a/lib/autoconf/specific.m4 b/lib/autoconf/specific.m4
index a2dc5d4883177feb1f8ac1b6bb6d9f6aa890fb3f..5dc006959b00de19e8c1a057fb17379f7f97bc1d 100644 (file)
--- a/lib/autoconf/specific.m4
+++ b/lib/autoconf/specific.m4
@@ -277,6 +277,8 @@ m4_define([_AC_SYS_LARGEFILE_TEST_CODE],
                       && LARGE_OFF_T % 2147483647 == 1)
                      ? 1 : -1]];[]dnl
 ])
+# Defined by Autoconf 2.71 and circa 2022 Gnulib unwisely depended on it.
+m4_define([_AC_SYS_LARGEFILE_TEST_INCLUDES], [_AC_SYS_LARGEFILE_TEST_CODE])
 
 # _AC_SYS_LARGEFILE_OPTIONS
 # -------------------------