diff --git a/configure b/configure
index 2b5ae78e96..cef901e231 100755
--- a/configure
+++ b/configure
@@ -197,6 +197,10 @@ if check_define __linux__ ; then
   targetos="Linux"
 elif check_define _WIN32 ; then
   targetos='MINGW32'
+elif check_define __OpenBSD__ ; then
+  targetos='OpenBSD'
+elif check_define __sun__ ; then
+  targetos='SunOS'
 else
   targetos=`uname -s`
 fi