$NetBSD: patch-configure.ac,v 1.4 2016/04/09 08:18:58 richard Exp $

prepare DragonFlyBSD and SunOS backend support

--- configure.ac.orig	2015-09-05 17:20:40.000000000 +0000
+++ configure.ac
@@ -72,6 +72,10 @@ case $host in
 	backend="openbsd"
 	threads="posix"
 	;;
+*-dragonfly*)
+	AC_MSG_RESULT([DragonflyBSD (using OpenBSD backend)])
+	backend="openbsd"
+	;;
 *-netbsd*)
 	AC_MSG_RESULT([NetBSD])
 	backend="netbsd"
@@ -95,6 +99,12 @@ case $host in
 	backend="haiku"
 	threads="posix"
 	;;
+*-solaris*)
+	AC_MSG_RESULT([SunOS])
+	backend="sunos"
+	threads="posix"
+	;;
+
 *)
 	AC_MSG_ERROR([unsupported operating system])
 esac
@@ -157,6 +167,16 @@ openbsd)
 	AC_CHECK_HEADERS([poll.h])
 	AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument])
 	;;
+
+sunos)
+	AC_DEFINE(OS_SUNOS, 1, [SunOS backend])
+	AC_SUBST(OS_SUNOS)
+	THREAD_CFLAGS="-pthread"
+	LIBS="-pthread -ldevinfo"
+	AC_CHECK_HEADERS([poll.h])
+	AC_DEFINE([POLL_NFDS_TYPE],[nfds_t],[type of second poll() argument])
+	;;
+
 netbsd)
 	AC_DEFINE(OS_NETBSD, 1, [NetBSD backend])
 	AC_SUBST(OS_NETBSD)
@@ -187,6 +207,7 @@ AC_SUBST(LIBS)
 AM_CONDITIONAL(OS_LINUX, test "x$backend" = xlinux)
 AM_CONDITIONAL(OS_DARWIN, test "x$backend" = xdarwin)
 AM_CONDITIONAL(OS_OPENBSD, test "x$backend" = xopenbsd)
+AM_CONDITIONAL(OS_SUNOS, test "x$backend" = xsunos)
 AM_CONDITIONAL(OS_NETBSD, test "x$backend" = xnetbsd)
 AM_CONDITIONAL(OS_WINDOWS, test "x$backend" = xwindows)
 AM_CONDITIONAL(OS_HAIKU, test "x$backend" = xhaiku)