Merged revisions 78194 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r78194 | martin.v.loewis | 2010-02-15 09:32:00 +0100 (Mo, 15 Feb 2010) | 2 lines

  Issue #3920: Define _BSD_SOURCE on OpenBSD 4.4.
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diff --git a/configure.in b/configure.in
index f5acbf4..5646e00 100644
--- a/configure.in
+++ b/configure.in
@@ -280,6 +280,12 @@
     # 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 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])
+    ;;
   # Defining _XOPEN_SOURCE on NetBSD version prior to the introduction of
   # _NETBSD_SOURCE disables certain features (eg. setgroups). Reported by
   # Marc Recht