When generating parser or lexer, remove target .c file first. This is required when users use "cvs -r" (ahem), which makes all the CVS-controlled files read-only.
When generating parser or lexer, remove target .c file first.
This is required when users use "cvs -r" (ahem), which makes all the
CVS-controlled files read-only.


git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@7771 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

fernandobrito/parrot,fernandobrito/parrot,youprofit/parrot,tkob/parrot,gitster/parrot,tewk/parrot-select,fernandobrito/parrot,fernandobrito/parrot,FROGGS/parrot,gagern/parrot,tewk/parrot-select,tkob/parrot,FROGGS/parrot,youprofit/parrot,tkob/parrot,FROGGS/parrot,tkob/parrot,gitster/parrot,fernandobrito/parrot,parrot/parrot,FROGGS/parrot,FROGGS/parrot,gitster/parrot,fernandobrito/parrot,tkob/parrot,gitster/parrot,gagern/parrot,tewk/parrot-select,gitster/parrot,youprofit/parrot,youprofit/parrot,tewk/parrot-select,tewk/parrot-select,gagern/parrot,tkob/parrot,parrot/parrot,FROGGS/parrot,youprofit/parrot,gagern/parrot,parrot/parrot,fernandobrito/parrot,gagern/parrot,parrot/parrot,gagern/parrot,youprofit/parrot,youprofit/parrot,FROGGS/parrot,gitster/parrot,FROGGS/parrot,tewk/parrot-select,gitster/parrot,tewk/parrot-select,tkob/parrot,gagern/parrot,youprofit/parrot,parrot/parrot,tkob/parrot