building cygwin tcl/tk

[Pelat Guillaume]

Building tcltk-8.3.4/tk/win/Makefiles
configure: WARNING: errno.h: present but cannot be compiled
configure: WARNING: errno.h: check for missing prerequisite headers?
configure: WARNING: errno.h: proceeding with the preprocessor's result
configure: WARNING:     ## ------------------------------------ ##
configure: WARNING:     ## Report this to address@hidden ##
configure: WARNING:     ## ------------------------------------ ##


address@hidden gpt]$ autoconf --version
autoconf (GNU Autoconf) 2.57
Written by David J. MacKenzie and Akim Demaille.

Copyright 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
--------------------------------------------------------
Autoconf version 2.13
--------------------------------------------------------
This is autoconf-wrapper, which will hand off execution
to one of the two real versions listed above, depending
on the contents of configure.in/configure.ac.  Since the
wrapper was called from within a directory in which those
files are not found, this generic 'version' message is
displayed.
address@hidden gpt]$