Ralf Wildenhues <[EMAIL PROTECTED]> writes: > It helps to keep m4 from expanding $0, without needing to think about > level of m4 quotation currently in place. AFAIK it's portable.
Yes, I just checked the Unix Version 7 sources, and it seems to have worked there. > I am still pondering abandoning sub completely though, and using substr > and length to do the replacement manually, due to the \& escaping > issues. Sounds like it might be a win. > Also I wonder how to get around this limitation (autoconf.texi): > | Traditional Awk `split' supports only two arguments. That part of autoconf.texi seems to be incorrect. Sorry about that. The Unix V7 grammar for awk says 'split' takes either two or three arguments. I don't now remember why I put that statement into the manual; I should remove it.
