+2020-09-26 Paul Eggert <eggert@cs.ucla.edu>
+
+ extensions: require AC_GNU_SOURCE only for <=2.63
+ Problem reported by Gavin Smith in:
+ https://lists.gnu.org/r/autoconf/2020-09/msg00012.html
+ * m4/extensions.m4 ([gl_USE_SYSTEM_EXTENSIONS]):
+ Require AC_GNU_SOURCE only for Autoconf 2.63 and earlier, since it
+ shouldn’t be needed after that, and Autoconf 2.70 complains about
+ it being obsolete.
+
2020-09-26 Bruno Haible <bruno@clisp.org>
regex-tests: Make test more robust.
-# serial 18 -*- Autoconf -*-
+# serial 19 -*- Autoconf -*-
# Enable extensions on systems that normally disable them.
# Copyright (C) 2003, 2006-2020 Free Software Foundation, Inc.
dnl warning: "AC_COMPILE_IFELSE was called before AC_USE_SYSTEM_EXTENSIONS".
dnl Note: We can do this only for one of the macros AC_AIX, AC_GNU_SOURCE,
dnl AC_MINIX. If people still use AC_AIX or AC_MINIX, they are out of luck.
- AC_REQUIRE([AC_GNU_SOURCE])
+ m4_version_prereq([2.64], [], [AC_REQUIRE([AC_GNU_SOURCE])])
AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
])