And here's what happens when I bootstrap webcit with autogen.sh on a Linux system, and then run ./configure on FreeBSD:
checking whether NLS is requested... yes checking for GNU gettext in libc... no checking for iconv... no, consider installing GNU libiconv checking for GNU gettext in libintl... no checking whether to use NLS... no checking for perl... /usr/bin/perl checking for XML::Parser... configure: error: XML::Parser perl module is required for intltool