build: Extend ip_mreq hack to DragonFlyBSD and SunOS

This extends the ip_mreq hack to DragonFlyBSD and SunOS. This has been
in pkgsrc for some time. I've cleaned up the pkgsrc patch a little and
am submitting it upstream. Credit is due to pkgsrc maintainers.

Tested on SmartOS (illumos).

Fixes: #819
Signed-off-by: Greg Troxel <gdt@ir.bbn.com>
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
(cherry picked from commit b8a893c38e97377b2a2582b1621b988e55811412)

diff --git a/configure.ac b/configure.ac
index ca8aaf8aff1905898760de239ad21dc21b270e69..4751591567f1e98d4b64bae90eee2b0392bf9caf 100755 (executable)
--- a/configure.ac
+++ b/configure.ac
@@ -1037,7 +1037,7 @@ AC_CHECK_HEADERS([linux/mroute.h], [], [],
 AC_MSG_CHECKING([for BSD struct ip_mreq hack])
 AC_TRY_COMPILE([#ifdef HAVE_SYS_PARAM_H
 #include <sys/param.h>
-#endif],[#if (defined(__FreeBSD__) && ((__FreeBSD_version >= 500022 && __FreeBSD_version < 700000) || (__FreeBSD_version < 500000 && __FreeBSD_version >= 440000))) || (defined(__NetBSD__) && defined(__NetBSD_Version__) && __NetBSD_Version__ >= 106010000) || defined(__OpenBSD__) || defined(__APPLE__)
+#endif],[#if (defined(__FreeBSD__) && ((__FreeBSD_version >= 500022 && __FreeBSD_version < 700000) || (__FreeBSD_version < 500000 && __FreeBSD_version >= 440000))) || (defined(__NetBSD__) && defined(__NetBSD_Version__) && __NetBSD_Version__ >= 106010000) || defined(__OpenBSD__) || defined(__APPLE__) || defined(__DragonFly__) || defined(__sun)
   return (0);
 #else
   #error No support for BSD struct ip_mreq hack detected