Install the openssl and openssh packages. The Sun implementation of ssh is broken.
The autoconf and automake packages on sunfreeware currently assume that Perl is in/usr/local/bin, whether or not it's *actually* there. Consider a symbolic link.
QT3 - Assuming you don't have the expensive Sun version of cc, replace "solaris-cc" with "solaris-gcc" (or g++) within the configure script. This must be done manually.
XCHAT - If you've installed the iconv library, pass the "--disable-nls" option to the configure script.
TORA - You must use a C++ compiler and gmake to get this to build properly. So, pass "--with-gcc=/full/path/to/g++" to the configure script. And remember, use gnu's make (not regular make) or you'll get weird errors.