Issue #7903: Define _BSD_SOURCE through OpenBSD 4.9.
diff --git a/configure.in b/configure.in
index 14e6280..e153bca 100644
--- a/configure.in
+++ b/configure.in
@@ -285,14 +285,16 @@
   # On OpenBSD, select(2) is not available if _XOPEN_SOURCE is defined,
   # even though select is a POSIX function. Reported by J. Ribbens.
   # Reconfirmed for OpenBSD 3.3 by Zachary Hamm, for 3.4 by Jason Ish.
-  OpenBSD/2.* | OpenBSD/3.@<:@0123456789@:>@ | OpenBSD/4.@<:@0123@:>@) 
+  # In addition, Stefan Krah confirms that issue #1244610 exists through
+  # OpenBSD 4.6, but is fixed in 4.7.
+  OpenBSD/2.* | OpenBSD/3.@<:@0123456789@:>@ | OpenBSD/4.@<:@0123456@:>@) 
     define_xopen_source=no
     # OpenBSD undoes our definition of __BSD_VISIBLE if _XOPEN_SOURCE is
     # also defined. This can be overridden by defining _BSD_SOURCE
     # As this has a different meaning on Linux, only define it on OpenBSD
     AC_DEFINE(_BSD_SOURCE, 1, [Define on OpenBSD to activate all library features])
     ;;
-  OpenBSD/4.@<:@4@:>@)
+  OpenBSD/4.@<:@789@:>@)
     # OpenBSD undoes our definition of __BSD_VISIBLE if _XOPEN_SOURCE is
     # also defined. This can be overridden by defining _BSD_SOURCE
     # As this has a different meaning on Linux, only define it on OpenBSD