--- unix/tclUnixInit.c.orig    2016-09-08 20:22:10.064101000 -0400

+++ unix/tclUnixInit.c 2016-09-08 20:22:42.345592000 -0400

@@ -391,14 +391,6 @@

 #endif /* SIGPIPE */

 #if defined(__FreeBSD__) && defined(__GNUC__)

-    /*

-     * Adjust the rounding mode to be more conventional. Note that FreeBSD

-     * only provides the __fpsetreg() used by the following two for the GNU

-     * Compiler. When using, say, Intel's icc they break. (Partially based on

-     * patch in BSD ports system from root@celsius.bychok.com)

-     */

-

-    fpsetround(FP_RN);

     (void) fpsetmask(0L);

 #endif