diff -urN clapack-3.2.1-CMAKE.old/INCLUDE/clapack.h clapack-3.2.1-CMAKE/INCLUDE/clapack.h
--- clapack-3.2.1-CMAKE.old/INCLUDE/clapack.h	2011-04-30 11:39:51.000000000 +0200
+++ clapack-3.2.1-CMAKE/INCLUDE/clapack.h	2011-04-30 11:40:39.000000000 +0200
@@ -3,6 +3,12 @@
 #ifndef __CLAPACK_H
 #define __CLAPACK_H
 
+#include <f2c.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 /* Subroutine */ int caxpy_(integer *n, complex *ca, complex *cx, integer *
 	incx, complex *cy, integer *incy);
 
@@ -7250,5 +7256,8 @@
 integer ilaenv_(integer *ispec, char *name__, char *opts, integer *n1, 
 	integer *n2, integer *n3, integer *n4);
 
+#ifdef __cplusplus
+}
+#endif
 
 #endif /* __CLAPACK_H */