gdb: move libiberty.m4 to gdbsupport

This is used by gdb, gdbsupport, and gdbserver.  We want to use it
in the sim tree too.  Move it to gdbsupport which is meant as the
common sharing space for these projects.

Approved-By: Tom Tromey <tom@tromey.com>

1 files changed, 31 insertions, 0 deletions

diff --git a/gdbsupport/libiberty.m4 b/gdbsupport/libiberty.m4
new file mode 100644
index 0000000..73673a9
--- /dev/null
+++ b/gdbsupport/libiberty.m4
@@ -0,0 +1,31 @@
+dnl Bits libiberty clients must do on their autoconf step.
+dnl
+dnl Copyright (C) 2012-2023 Free Software Foundation, Inc.
+dnl
+dnl This file is free software; you can redistribute it and/or modify
+dnl it under the terms of the GNU General Public License as published by
+dnl the Free Software Foundation; either version 3 of the License, or
+dnl (at your option) any later version.
+dnl
+dnl This program is distributed in the hope that it will be useful,
+dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+dnl GNU General Public License for more details.
+dnl
+dnl You should have received a copy of the GNU General Public License
+dnl along with this program; see the file COPYING3.  If not see
+dnl <http://www.gnu.org/licenses/>.
+dnl
+
+dnl Checks for declarations ansidecl.h and libiberty.h themselves
+dnl check with HAVE_DECL_XXX, etc.
+
+AC_DEFUN([libiberty_INIT],
+[
+  # Check for presence and size of long long.
+  AC_CHECK_TYPES([long long], [AC_CHECK_SIZEOF(long long)])
+
+  AC_CHECK_DECLS([basename(char *), ffs, asprintf, vasprintf, snprintf, vsnprintf])
+  AC_CHECK_DECLS([strtol, strtoul, strtoll, strtoull])
+  AC_CHECK_DECLS([strverscmp])
+])