The phpize program creates a configure file that executes ltconfig with --no-verify but does not specify the host, FreeBSD ltconfig (libtool 1.3.4) requires the host be specified when the --no-verify parameter is passed, this results in the configure failing.  When libtool 1.4 is installed the problem is resolved however 1.3.4 is what is in FreeBSD ports.

This has been verified to be true with PHP 4.3.0 release on FreeBSD 4.7-STABLE with at least the curl, mhash and bz2 extensions.

My configuration is as follows:

AMD Athlon 1 GHZ CPU (686 class)
FreeBSD 4.7
256 MB RAM
Apache 1.3.27
PHP 4.3.0
Libtool: (GNU libtool) 1.3.4-freebsd-ports

My PHP configuration line is:  './configure' '--with-apxs=/usr/local/sbin/apxs' '--with-mcrypt' '--with-mhash' '--with-zlib' '--with-bz2' '--with-interbase' '--with-pdflib' '--with-gd' '--with-pgsql' '--with-mysql' '--enable-ftp'


The output from the failed configure script is:

loading cache /dev/null within ltconfig
ltconfig: you must specify a host type if you use `--no-verify'
Try `ltconfig --help' for more information.
configure: error: libtool configure fail

I manually installed libtool 1.4 and the problem went away, however the version of libtool in the FreeBSD ports collection is 1.3.4 so it is what most FreeBSD users will have installed.