Just encountered while using PTXDist with autoreconf (GNU Autoconf) 2.72:
> ./autogen.sh
configure.ac:41: warning: The macro 'AC_HEADER_STDC' is obsolete.
configure.ac:41: You should run autoupdate.
./lib/autoconf/headers.m4:663: AC_HEADER_STDC is expanded from...
configure.ac:41: the top level
configure.ac:190: warning: AC_PROG_LEX without either yywrap or
noyywrap is obsolete
./lib/autoconf/programs.m4:743: _AC_PROG_LEX is expanded from...
./lib/autoconf/programs.m4:736: AC_PROG_LEX is expanded from...
configure.ac:190: the top level
Do we have to keep these for older systems or can they be improved to
avoid the warnings without breaking older systems?
Sincerely
Sven
