diff --git a/configure.in b/configure.in
index 13e4e852..542dd154 100644
--- a/configure.in
+++ b/configure.in
@@ -114,6 +114,10 @@ else
 				;;
 		ipv4:freebsd*)	sysdesc=bsd
 				;;
+		ipv6:openbsd*)	sysdesc=bsd-v6
+				;;
+		ipv4:openbsd*)	sysdesc=bsd
+				;;
 		*)		AC_MSG_ERROR([Cannot determine correct system configuration. Please use --with-sysconfig to set it manually.])
 				;;
 		esac
diff --git a/sysdep/autoconf.h.in b/sysdep/autoconf.h.in
index 6cf90aa6..66e66a84 100644
--- a/sysdep/autoconf.h.in
+++ b/sysdep/autoconf.h.in
@@ -54,3 +54,7 @@
 
 /* struct sockaddr_in(6) */
 #undef HAVE_SIN_LEN
+
+/* We have stdint.h */
+#undef HAVE_STDINT_H
+
diff --git a/sysdep/unix/endian.h b/sysdep/unix/endian.h
index 58c746f0..bc486313 100644
--- a/sysdep/unix/endian.h
+++ b/sysdep/unix/endian.h
@@ -13,5 +13,8 @@
 
 #include <sys/types.h>
 #include <netinet/in.h>
+#ifdef HAVE_STDINT_H
+#include <stdint.h>
+#endif
 
 #endif