For borland.link.dll, join implib action with main compile action with

&&. Otherwise, Boost.Build won't notice failures in linking. Looks like
implib always returns 0 as status, or something like that.


[SVN r31299]

tools/build

@@ -1 +1 @@
-Subproject commit 1eb4b28be14d0518f1f4bdbd98e946585006d367
+Subproject commit 99c74c89f47510ed52d2bbbe380b6ee4b2b9f384