php, mysql & imap problems

Hi guys Ok first off had a problem when compiling php with imap where it was looking for a rfc822.h file, I got the source for imap ran a make slx and copied the relavent files to /usr/include.... now when running.. root@Titan:~/install/php-4.0.5# ./configure --with-mysql --with-apxs --with-imap=/root/install/imap-2001.RELEASE-CANDIDATE.1 \ I get Configuring libtool checking build system type... Configuration name missing. Usage: ./config.sub CPU-MFR-OPSYS or ./config.sub ALIAS where ALIAS is a recognized configuration type. checking for ld used by GCC... (cached) /usr/i386-slackware-linux/bin/ld checking if the linker (/usr/i386-slackware-linux/bin/ld) is GNU ld... (cached) yes checking for BSD-compatible nm... (cached) /usr/bin/nm -B loading cache ./config.cache within ltconfig ltconfig: you must specify a host type if you use `--no-verify' Try `ltconfig --help' for more information. configure: error: libtool configure failed any ideas ?? regards, Mark Coetser support engineer Internet solutions telephone (011) 283 5500 / 0860 50 5000 fax (011) 283 5401 <http://www.is.co.za> "This e-mail may contain confidential information and may be legally privileged and is intended only for the person to whom it is addressed. If you are not the intended recipient, you are notified that you may not use, distribute or copy this document in any manner whatsoever. Kindly also notify the sender immediately by telephone, and delete the e-mail. When addressed to Internet Solutions' clients any opinion or advice contained in this e-mail is subject to the terms and conditions expressed in any applicable terms of business or client engagement letter. Internet Solutions does not accept liability for any damage, loss or expense arising from this e-mail and/or from the accessing of any files attached to this e-mail."