hi, I am novice in using autoconf tools.. Could you tell me why I am getting these errors.. autoheader-2.53 configure.in:8: warning: do not use m4_patsubst: use patsubst or m4_bpatsubst configure.in:17: warning: AC_PROG_LEX invoked multiple times configure.in:67: warning: do not use m4_regexp: use regexp or m4_bregexp I would rally apprciate ur help Thanks Deepti ________________________________________________________________________ Want to chat instantly with your online friends? Get the FREE Yahoo! Messenger http://mail.messenger.yahoo.co.uk