sync code with last improvements from OpenBSD

lib/libfontenc/configure.ac

@@ -0,0 +1,74 @@
+#  Copyright 2005 Red Hat, Inc.
+#
+#  Permission to use, copy, modify, distribute, and sell this software and its
+#  documentation for any purpose is hereby granted without fee, provided that
+#  the above copyright notice appear in all copies and that both that
+#  copyright notice and this permission notice appear in supporting
+#  documentation, and that the name of Red Hat not be used in
+#  advertising or publicity pertaining to distribution of the software without
+#  specific, written prior permission.  Red Hat makes no
+#  representations about the suitability of this software for any purpose.  It
+#  is provided "as is" without express or implied warranty.
+#
+#  RED HAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+#  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+#  EVENT SHALL RED HAT BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+#  CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+#  DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+#  TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+#  PERFORMANCE OF THIS SOFTWARE.
+#
+
+# Initialize Autoconf
+AC_PREREQ([2.60])
+AC_INIT([libfontenc], [1.1.7],
+        [https://gitlab.freedesktop.org/xorg/lib/libfontenc/-/issues], [libfontenc])
+AC_CONFIG_SRCDIR([Makefile.am])
+AC_CONFIG_HEADERS([config.h])
+
+# Set common system defines for POSIX extensions, such as _GNU_SOURCE
+# Must be called before any macros that run the compiler (like AC_PROG_LIBTOOL)
+# to avoid autoconf errors.
+AC_USE_SYSTEM_EXTENSIONS
+
+# Initialize Automake
+AM_INIT_AUTOMAKE([foreign dist-xz])
+
+# Initialize libtool
+AC_PROG_LIBTOOL
+
+# Require X.Org macros 1.8 or later
+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
+
+# Require X.Org's font util macros 1.1 or later for XORG_FONTROOTDIR
+m4_ifndef([XORG_FONT_MACROS_VERSION],
+	  [m4_fatal([must install X.Org font-util 1.1 or later before running autoconf/autogen])])
+XORG_FONT_MACROS_VERSION(1.1)
+XORG_FONTSUBDIR([ENCODINGSDIR], [encodingsdir], [encodings])
+
+# zlib
+AC_CHECK_HEADER([zlib.h], [],
+                AC_MSG_FAILURE([zlib.h is required to compile libfontenc]))
+AC_CHECK_LIB(z, gzclose, [],
+             AC_MSG_FAILURE([zlib is required to compile libfontenc]))
+
+# Obtain compiler/linker options for dependencies
+PKG_CHECK_MODULES(FONTENC, xproto)
+
+# Checks for typedefs, structures, and compiler characteristics.
+AC_SYS_LARGEFILE
+
+# Checks for library functions.
+AC_REPLACE_FUNCS([reallocarray])
+
+# Allow checking code with lint, sparse, etc.
+XORG_WITH_LINT
+LINT_FLAGS="${LINT_FLAGS} ${FONTENC_CFLAGS}"
+
+AC_CONFIG_FILES([Makefile
+		src/Makefile
+		fontenc.pc])
+AC_OUTPUT