--- a/IexMath/IexMathFpu.cpp	Sat Aug 10 10:59:31 2013
+++ b/IexMath/IexMathFpu.cpp	Sat Aug 10 11:03:14 2013
@@ -53,7 +53,7 @@
 #endif
 
 
-#ifdef HAVE_UCONTEXT_H
+#if defined(HAVE_UCONTEXT_H) && !defined (__sun)
 
 
 #include <ucontext.h>