While working on https://savannah.gnu.org/bugs/?24346 I found that the current code in Mercurial fails to build. This is what I am getting:
$ hg clone http://hg.addictivecode.org/wget/mainline wget $ ./autogen.sh $ ./configure --prefix=$HOME $ make [...] /bin/sh ../ylwrap css.l lex.yy.c css.c -- flex /u/debray/devel/wget/hg/wget-hacking/src/css.l:112: undefined definition {X} /u/debray/devel/wget/hg/wget-hacking/src/css.l:113: undefined definition {X} /u/debray/devel/wget/hg/wget-hacking/src/css.l:120: undefined definition {R} /u/debray/devel/wget/hg/wget-hacking/src/css.l:121: undefined definition {R} make[2]: *** [css.c] Error 1 [...] Happy hacking, Debarshi