Maxima-5.9.0.9beta2 failed to install on Slackware Linux

> Start GCL and you'll se something like this
> ==========================================================
> GCL (GNU Common Lisp)  2.6.4 ANSI    Aug  7 2004 20:36:36
>                              ^^^^
> Source License: LGPL(gcl,gmp), GPL(unexec,bfd)
> Binary License:  GPL due to GPL'ed components: (UNEXEC)
> Modifications of this banner must retain notice of a compatible license
> Dedicated to the memory of W. Schelter
> ==========================================================
> GCL flawor is in the very first line right after
> version number - it is ANSI or CLtL1.
> 

It was CLtL1. 

> Reinstall GCL with --enable-ansi.
> 

I did reinstall GCL, and INSTALLED MAXIMA using ./configure, make ...
No problems noticed so far! Thank you very much!!!

Now, another problem:
In the meantime, I also tried a separate install based on
INSTALL.lisp. This one failed. 
Here is what happened.

Steps 1) - 5) work fine. Here, I am talking about the steps as
enumerated in the file INSTALL.lisp

1) Launch your lisp implementation.
   gcl <return>
2) Load the file configure.lisp.
  >(load "configure.lisp")
3) Execute "(configure)". 

4) Change to the src directory.
    For less than a newbee in Lisp this was a bit of a problem:)
		After some poking around I figured that 
		  (si::chdir "src")
		might do the work, and it did!
		
5) Load maxima-build.lisp.
    (load "maxima-build.lisp")
		
6) Execute "(maxima-compile)".
    (maxima-compile)
				 
After about 3 screens of messages, GCL stopped; here is the last
screen:

*******************
Finished loading
/tmp/Installs/maxima-lispinstall/maxima-5.9.0.9beta2/src/numerical/slatec.lisp
Loading
/tmp/Installs/maxima-lispinstall/maxima-5.9.0.9beta2/src/command-line.lisp
Finished loading
/tmp/Installs/maxima-lispinstall/maxima-5.9.0.9beta2/src/command-line.lisp
Loading /tmp/Installs/maxima-lispinstall/maxima-5.9.0.9beta2/src/nregex.lisp
Finished loading
/tmp/Installs/maxima-lispinstall/maxima-5.9.0.9beta2/src/nregex.lisp
Loading
/tmp/Installs/maxima-lispinstall/maxima-5.9.0.9beta2/src/sys-proclaim.lisp
Finished loading
/tmp/Installs/maxima-lispinstall/maxima-5.9.0.9beta2/src/sys-proclaim.lisp
Loading
/tmp/Installs/maxima-lispinstall/maxima-5.9.0.9beta2/src/autoconf-variables.lisp
Finished loading
/tmp/Installs/maxima-lispinstall/maxima-5.9.0.9beta2/src/autoconf-variables.lisp
Compiling
/tmp/Installs/maxima-lispinstall/maxima-5.9.0.9beta2/src/nregex.lisp.
Error in LET [or a callee]: Cannot create the file binary-gcl/nregex.data.

Fast links are on: do (use-fast-links nil) for debugging
Broken at CONDITIONS::CLCS-OPEN.  Type :H for Help.
 1 (Continue) Retry opening file #p"binary-gcl/nregex.data".
  2 (Abort) Return to top level.
  dbl:>>
  
  I typed 1 and got:
  
Error in LET [or a callee]: Cannot create the file binary-gcl/nregex.data.

Fast links are on: do (use-fast-links nil) for debugging
Broken at CONDITIONS::CLCS-OPEN.  Type :H for Help.
 1 (Continue) Retry opening file #p"binary-gcl/nregex.data".
  2 (Abort) Return to top level.
  dbl:>>
  
******************************

I hope this can be useful.

Milan
P.S. I compiled GCL with the following options:

./configure --enable-ansi --enable-readline --with-x --enable-debug
--enable-notify=no