AdaTutor Compilation with GNAT

[George <mail2george@gmx-topmail.de>]

Dear Listers,

I refer to the article

http://groups.google.com/group/comp.lang.ada/browse_thread/
thread/6192a34d0c9ffe5b/177a4ab5525a77a2 .

I followed the instructions of PRINTME.TXT "APPENDIX D:  INSTALLING 
AdaTutor ON OTHER COMPUTERS" on page p. 41ff. The steps 1. to 8.
worked perfectly.

I tried to compile AdaTutor as mentioned in step 9., page 43, of 
PRINTME.TXT on my Debian GNU Linux 5.0 Lenny with GNAT 4.3.2 / gcc-4.3 
using

gnatmake ADA95.ADA and
gnatmake VANILLA.ADA .

Neither does compile. gnat says:

gcc-4.3 -c -x ada ADA95.ADA
ADA95.ADA:35:01: end of file expected, file can have only one compilation 
unit
gnatmake: "ADA95.ADA" compilation error

As I am new to Ada, it seems that GNAT expects the specification and the 
body of a package to reside in different files. In the sources of 
AdaTutor, specification and body reside in one .ADA file.

Is there a way to tell gnat to accept that format? Is there a program 
that can separate specification from body? Do I have to use a different 
compiler? Is there another way to fix that?

Kind regards

George