New Alpha_(re)

Tue, 15 Apr 1997 14:45:40 +0200

Peter Gerwinski wrote:

>   * The GNU compiler's global configuration file `specs' (or `specs.gpc'
>     with DJGPP) now contains a line `*gpc1:' after which you can put
>     your site-wide default switches, e.g.
>
>         *gpc1:
>         -fextended-pascal -ffield-widths -fno-clip-strings
>     Note that `specs' does not want `--foo' but `-ffoo'.

BTW: You recently said that one has to use '-pedantic', not '-fpedantic'
in specs. Is there a general rule when to use '-f...' and when simply '-...'?

>   * All command-line `--foobar' flags now can be given as compiler
>     directives.  One example:
>
>         (*$field-widths,NO-clip-strings,SetLimit=1024, AutoMake="-g -O3"*).

Just to make sure: 'AutoMake="--foo"' means that '--foo' is used for the
compilation of the units involved and the program itself, while
'AutoMake, --foo' would apply '--foo' only to the program. Is that right?

A minor "problem": If I compile a program with such a compiler switch with TP,
TP complains about an "Invalid compiler directive". Is there a way (perhaps
a simpler way than conditional defines) to supply the options so that gpc
will recognize them and TP will ignore them?

What about compiler options for "-o foo", "foo.o" and/or "bar.c"? Are you
working on them, or are they too difficult to implement?

BTW: Is it legal (with the currect version) to use "gpc foo.c bar.pas"?
I asked about this already in my mail about "Re: Linking directives..." on
3 Apr, but unfortunately got no replies.

And another contribution to the GPC test suite... :-|

The following program and unit cause the latest gpc to fail with SIGSEGV.
It worked with a previous version of gpc:

PROGRAM x;
USES y;

VAR v:t;

BEGIN
  q(v) {or p(v) - both cause SIGSEGV}
END.

UNIT Y;

INTERFACE

TYPE t=ARRAY[0..1] OF Integer;

PROCEDURE p(VAR v:t);
PROCEDURE q(CONST v:t);

IMPLEMENTATION

PROCEDURE p(VAR v:t);
BEGIN
END;

PROCEDURE q(CONST v:t);
BEGIN
END;
END.
-- 
Frank Heckenbach, Erlangen, Germany
heckenb@mi.uni-erlangen.de
Turbo Pascal:   http://www.mi.uni-erlangen.de/~heckenb/programs.htm
Internet links: http://www.mi.uni-erlangen.de/~heckenb/links.htm

Frank Heckenbach (heckenb@mi.uni-erlangen.de)