--- openexr-1.4.0/acinclude.m4.no_undefined	2005-08-23 12:13:04.000000000 -0500
+++ openexr-1.4.0/acinclude.m4	2006-09-14 09:03:52.000000000 -0500
@@ -244,7 +244,7 @@
 # which indicates that we try without any flags at all, and "pthread-config"
 # which is a program returning the flags for the Pth emulation library.
 
-acx_pthread_flags="pthreads none -Kthread -kthread lthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
+acx_pthread_flags="pthreads none -Kthread -kthread lthread pthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
 
 # The ordering *is* (sometimes) important.  Some notes on the
 # individual items follow: