CLISP (2.49.93+) re-ported

[KIRIYAMA Kazuhiko]

Hi all,

I've re-ported lang/clisp [1]. This port has beed moved
since 2014-07-28 because it's development has ceased. But it
continue to developed with GitLab [2]. Latest version is
2.49.93+ and last commitment was in 12 Nov, 2018. I've
reconstructed to suit this latest version and worked fine
without sevral features:

CLX_NEW	Faster X11 Interface (replaces clx/mit-clx)
GLIBC	Interface to most of the GNU libc library
JITC	Use a given Just-In-Time Compiler
MATLAB	Matrix calculations using Matlab
NETICA	Bayesian belief networks and influence diagrams
ORACLE	Oracle RDMBS interface
PARI	PARI Computer Algebra System

These were all faild to compile with gcc8. My working
environments are as follows:

admin at jdtpkx:~ % uname -a
FreeBSD jdtpkx 13.0-CURRENT FreeBSD 13.0-CURRENT #0 r339677M: Fri Oct 26 14:56:49 JST 2018     root at msrvkx:/usr/obj/usr/src/amd64.amd64/sys/XIJ  amd64
admin at jdtpkx:~ % svnlite info --show-item revision /usr/ports
486173
admin at jdtpkx:~ % 

I'm willing to report to test [1] and how to resolve above
problems.

Best regards

[1] https://github.com/TrueFC/ports/tree/master/lang/clisp
[2] https://gitlab.com/gnu-clisp/clisp

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KIRIYAMA Kazuhiko