Using -R instead of -rpath.

 * tools/gcc.jam
   (link): substitute -R for -rpath
   (link.dll): substitute -R for -rpath

Patch from Andre Hentz.


[SVN r20783]

tools/build

@@ -1 +1 @@
-Subproject commit 6c680985f5396352f76e806e96af784963e38915
+Subproject commit 5e3a86adf3ec669e37d876fd77c78270b8425c4b