sync code with last improvements from OpenBSD

lib/libXau/configure.ac

@@ -0,0 +1,88 @@
+#
+#  Copyright © 2003 Keith Packard, Noah Levitt
+#
+#  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 Keith Packard not be used in
+#  advertising or publicity pertaining to distribution of the software without
+#  specific, written prior permission.  Keith Packard makes no
+#  representations about the suitability of this software for any purpose.  It
+#  is provided "as is" without express or implied warranty.
+#
+#  KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+#  INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+#  EVENT SHALL KEITH PACKARD 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([libXau], [1.0.11],
+	[https://gitlab.freedesktop.org/xorg/lib/libxau/-/issues], [libXau])
+AC_CONFIG_SRCDIR([Makefile.am])
+AC_CONFIG_HEADERS([config.h])
+AC_USE_SYSTEM_EXTENSIONS
+
+# Initialize Automake
+AM_INIT_AUTOMAKE([foreign dist-xz])
+
+# Initialize libtool
+AC_LIBTOOL_WIN32_DLL
+AC_PROG_LIBTOOL
+
+# 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
+
+# Checks for programs.
+AC_PROG_LN_S
+
+# Checks for library functions.
+AC_CHECK_FUNCS([explicit_bzero pathconf])
+
+# Obtain compiler/linker options for dependencies
+PKG_CHECK_MODULES(XAU, xproto)
+
+# Checks for typedefs, structures, and compiler characteristics.
+AC_SYS_LARGEFILE
+
+AC_ARG_ENABLE(xthreads,
+              AS_HELP_STRING([--disable-xthreads],
+                [Disable libXau support for Multithreading]),
+              [xthreads=$enableval],[xthreads=yes])
+
+if test "x$xthreads" = "xyes" ; then
+    AC_DEFINE(XTHREADS,1,[Whether libXau is compiled with thread support])
+    AC_CHECK_LIB(c, gethostbyname_r, [mtsafe=yes])
+    if test "x$mtsafe" = "x" ; then
+	AC_CHECK_LIB(nsl, gethostbyname_r, [mtsafe=yes])
+    fi
+    if test "x$mtsafe" = "xyes" ; then
+	AC_DEFINE(XUSE_MTSAFE_API, 1,
+		  [Whether libXau needs to use MT safe API's])
+    fi
+
+# XXX incomplete, please fill this in
+    case $host_os in
+    solaris*)
+	XTHREAD_CFLAGS="-D_REENTRANT -D_POSIX_PTHREAD_SEMANTICS" ;;
+    esac
+    XAU_CFLAGS="$XAU_CFLAGS $XTHREAD_CFLAGS"
+fi
+
+# Allow checking code with lint, sparse, etc.
+XORG_WITH_LINT
+XORG_LINT_LIBRARY([Xau])
+LINT_FLAGS="${LINT_FLAGS} ${XAU_CFLAGS}"
+
+AC_CONFIG_FILES([Makefile
+		man/Makefile
+		xau.pc])
+AC_OUTPUT