sync code with last improvements from OpenBSD

app/xmodmap/configure.ac

@@ -0,0 +1,54 @@
+
+dnl  Copyright 2005 Red Hat, Inc.
+dnl 
+dnl  Permission to use, copy, modify, distribute, and sell this software and its
+dnl  documentation for any purpose is hereby granted without fee, provided that
+dnl  the above copyright notice appear in all copies and that both that
+dnl  copyright notice and this permission notice appear in supporting
+dnl  documentation, and that the name of Red Hat not be used in
+dnl  advertising or publicity pertaining to distribution of the software without
+dnl  specific, written prior permission.  Red Hat makes no
+dnl  representations about the suitability of this software for any purpose.  It
+dnl  is provided "as is" without express or implied warranty.
+dnl 
+dnl  RED HAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+dnl  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+dnl  EVENT SHALL RED HAT BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+dnl  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+dnl  DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+dnl  TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+dnl  PERFORMANCE OF THIS SOFTWARE.
+dnl
+dnl Process this file with autoconf to create configure.
+
+# Initialize Autoconf
+AC_PREREQ([2.60])
+AC_INIT([xmodmap],
+	[1.0.11],
+	[https://gitlab.freedesktop.org/xorg/app/xmodmap/issues],
+	[xmodmap])
+AC_CONFIG_SRCDIR([Makefile.am])
+AC_CONFIG_HEADERS([config.h])
+# Needed for asprintf on GNU libc
+AC_USE_SYSTEM_EXTENSIONS
+
+# Initialize Automake
+AM_INIT_AUTOMAKE([foreign dist-xz])
+
+# Require X.Org macros 1.8 or later for MAN_SUBSTS set by XORG_MANPAGE_SECTIONS
+m4_ifndef([XORG_MACROS_VERSION],
+          [m4_fatal([must install xorg-macros 1.8 or later before running autoconf/autogen])])
+XORG_MACROS_VERSION(1.8)
+XORG_DEFAULT_OPTIONS
+
+AC_CHECK_FUNCS([strncasecmp asprintf])
+
+# Checks for pkg-config packages
+PKG_CHECK_MODULES(XMODMAP, [x11 xproto >= 7.0.25])
+
+dnl Allow checking code with lint, sparse, etc.
+XORG_WITH_LINT
+
+AC_CONFIG_FILES([Makefile
+                 man/Makefile])
+AC_OUTPUT