@@ -, +, @@ 
    add patch to remove fpsetround use from tcl86
    
    fpsetround is non-standard and is not provided on arm64 or riscv.
    On architectures where fpsetround does exist, fpsetround(FP_RN) just
    sets the rounding mode to the already-set default.
--- /dev/null	
+++ b/lang/tcl86/files/patch-unix-tclUnixInit.c	
@@ -0,0 +1,17 @@ 
+--- 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
+