On 04/06/2010 11:02 PM, Ralf Wildenhues wrote: > Hello, > > * Eric Blake wrote on Sat, Apr 03, 2010 at 01:32:45AM CEST: >> + Fix m4_cr_all for EBCDIC. >> + * lib/m4sugar/m4sugar.m4 (m4_cr_all): Swap * and $, so that we >> + don't end up with $* in EBCDIC. >> + Reported by Steve Goetze. > > thanks for working on this! > >> m4_define([m4_cr_all], >> m4_translit(m4_dquote(m4_format(m4_dquote(m4_for( >> - ,1,255,,[[%c]]))m4_for([i],1,255,,[,i]))), [-])-) >> + ,1,255,,[[%c]]))m4_for([i],1,255,,[,i]))), [$*-], [*$])-) > > Reading the patch, I wonder why the $* in the second argument to > m4_translit does not ever get expanded to something undesirable?
Because it is at the top level. That is, we are NOT inside any m4_define/AC_DEFUN, but this is being parsed immediately by m4. $* only expands into arguments when you are expanding a defined macro that has arguments. -- Eric Blake [email protected] +1-801-349-2682 Libvirt virtualization library http://libvirt.org
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