Error compiling libwww on Sun Solaris 2.5.6

Hi,

I have downloaded the libwww Unix tarball and extracted the data. I followed the
instructions and ran "configure" then GNU Make (version 3.79.1) from the root
directory of the library.

I'm getting the following error:
gmake[4]: Entering directory `/w3c-libwww-5.4.0/modules/expat/xmltok'
/bin/sh ../../../libtool --mode=compile
-DHAVE_CONFIG_H -I. -I. -I../../..     -g -O2 -Wall -DXML_NS -c xmlrole.c
.../../../libtool: test: argument expected
gmake[4]: *** [xmlrole.lo] Error 1
gmake[4]: Leaving directory `/w3c-libwww-5.4.0/modules/expat/xmltok'
gmake[3]: *** [all-recursive] Error 1
gmake[3]: Leaving directory `/w3c-libwww-5.4.0/modules/expat'
gmake[2]: *** [all-recursive] Error 1
gmake[2]: Leaving directory `/w3c-libwww-5.4.0/modules'
gmake[1]: *** [all-recursive] Error 1
gmake[1]: Leaving directory `/w3c-libwww-5.4.0'
gmake: *** [all-recursive-am] Error 2

Can someone help me figure out what is the problem and how to fix it?

Thanks
   Ofir