darcs patch: Try to support TH with profiling. See ti... (and 1 more)

Wed Aug 2 18:59:22 BST 2006 Duncan Coutts * Try to support TH with profiling. See ticket #91. This needs testing. Fri Aug 18 02:04:49 BST 2006 Duncan Coutts * Add xargs function and use it when linking. When using GHC's --split-objs we end up with lots of files to link. This can mean overflowing the maximum length of the command line when invoking ar or ld. On windows the maximum length is 32k. On other systems it's not a great deal more. GHC currently deals with this problem by using xargs. This patch does more or less the same.