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Today's Topics:
1. advanced macros? (Roland Schaefer)
2. Re: advanced macros? (Jonas Maebe)
3. Re: advanced macros? (Marco van de Voort)
4. Re: Linking issue in Ubuntu 9.04 (32 bit) (Alan Krause)
5. Error attempting to build FPC from svn (Alan Krause)
6. ifdef'ing FreeBSD by os version number (Marc Santhoff)
7. Re: Error attempting to build FPC from svn (Jonas Maebe)
8. Re: fpc-pascal Digest, Vol 60, Issue 47 (Richard Jasmin)
----------------------------------------------------------------------
Message: 1
Date: Tue, 07 Jul 2009 13:57:16 +0200
From: Roland Schaefer <roland.schae...@fu-berlin.de>
Subject: [fpc-pascal] advanced macros?
To: fpc-pascal <fpc-pascal@lists.freepascal.org>
Message-ID: <4a53381c.8070...@fu-berlin.de>
Content-Type: text/plain; charset=ISO-8859-1
Hi,
reading the Programmer's Manual, I get the impression that C-style
macros with {$MACRO ON} cannot do things like C
#define MY_MACRO(param1,param2...)
code_with ( param1 && param 2 );
i.e., passing strings macros for in-macro insertion. Is this true? If
yes, are there any plans to include such capabilities in the
preprocessor? It would be very useful in places. On the other hand, the
mighty preprocessor is one of the primary obfuscation "tools" in C.
One related question: In current FPC macros, can I include {$IFDEF}s? I
did it, and without using the macro, the unit compiles ok, but I get
various errors whenever I use the macro.
Cheers, thanks a lot
Roland
------------------------------
Message: 2
Date: Tue, 7 Jul 2009 14:13:59 +0200
From: Jonas Maebe <jonas.ma...@elis.ugent.be>
Subject: Re: [fpc-pascal] advanced macros?
To: roland.schae...@fu-berlin.de, FPC-Pascal users discussions
<fpc-pascal@lists.freepascal.org>
Message-ID: <f63643d3-3ab2-4db1-8cde-15e045b1b...@elis.ugent.be>
Content-Type: text/plain; charset=US-ASCII; format=flowed
On 07 Jul 2009, at 13:57, Roland Schaefer wrote:
reading the Programmer's Manual, I get the impression that C-style
macros with {$MACRO ON} cannot do things like C
#define MY_MACRO(param1,param2...)
code_with ( param1 && param 2 );
i.e., passing strings macros for in-macro insertion. Is this true?
Yes.
If
yes, are there any plans to include such capabilities in the
preprocessor?
No.
One related question: In current FPC macros, can I include {$IFDEF}s?
I doubt it, as I don't think that the preprocessing happens recursively.
Jonas
------------------------------
Message: 3
Date: Tue, 7 Jul 2009 14:42:02 +0200 (CEST)
From: mar...@stack.nl (Marco van de Voort)
Subject: Re: [fpc-pascal] advanced macros?
To: roland.schae...@fu-berlin.de, FPC-Pascal users discussions
<fpc-pascal@lists.freepascal.org>
Message-ID: <20090707124202.d85f233...@turtle.stack.nl>
Content-Type: text/plain; charset="US-ASCII"
In our previous episode, Roland Schaefer said:
i.e., passing strings macros for in-macro insertion. Is this true? If
yes, are there any plans to include such capabilities in the
preprocessor? It would be very useful in places. On the other hand, the
mighty preprocessor is one of the primary obfuscation "tools" in C.
It is not that much needed anyway. Generics and inline functions do most of
the stuff that the preprocessor is used for in C. Also the fact that
visibility of identifiers (importing of other compilation units) is not
include based makes it somewhat less useful as many people think.
The only place where I miss it somewhat is in laying out complex structured
constants, preferably in some friendly way.
One related question: In current FPC macros, can I include {$IFDEF}s? I
did it, and without using the macro, the unit compiles ok, but I get
various errors whenever I use the macro.
Not that I know, but you of course can define it under such:
{$ifdef mydef}
{$define macro:=something}
{$else}
{$define macro:=something2}
{$endif}
But that is on the place of macro definition, not "local".
------------------------------
Message: 4
Date: Tue, 7 Jul 2009 09:21:46 -0700
From: Alan Krause <al...@shermanloan.com>
Subject: [fpc-pascal] Re: Linking issue in Ubuntu 9.04 (32 bit)
To: FPC-Pascal users discussions <fpc-pascal@lists.freepascal.org>
Message-ID:
<bd81a76e0907070921w6d363c09td387362654d4a...@mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"
Just a quick update on this issue. I finally decided to submit a bug report
via Ubuntu's Launchpad, as I didn't see any other similar bugs in their
database. ( Bug report is here: https://bugs.launchpad.net/bugs/392197 )
It looks as if the issue has now been resolved and the fix is available for
the next release (9.10 - Karmic Koala). However, I was able to download the
appropriate .DEB file for my architecture and install it on a 9.04 box, and
it does appear to work as advertised.
Alan
On Fri, Apr 24, 2009 at 1:39 PM, Alan Krause <al...@shermanloan.com> wrote:
I've installed ubuntu 9.04 in a VM to test it out, and have installed fpc
2.2.4. It is always good to look before you leap, right?
Anyhow, I am trying to compile an existing project that works fine under
Ubuntu 8.04. I can get all of the unit to compile, but when it comes time=
to
link them together into a shared library, I get the following:
Linking libproj.so
Error: Can't call the linker, switching to external linking
Fatal: There were 1 errors compiling module, stopping
Fatal: Compilation aborted
Error: /usr/local/bin/ppc386 returned an error exitcode (normal if you did
not specify a source file to be compiled)
Here is the source code for the sample project:
library project1;
uses
Classes;
function dRound(iDec: integer; dRate: double): double;
const
TenToPower: Array[0..9] of integer =3D (1, 10, 100, 1000, 10000, 100000,
1000000, 10000000, 100000000,
1000000000);
var
dInc : double;
begin
if iDec > 0 then begin
dInc :=3D 0.5000001;
result :=3D trunc (dRate * (TenToPower [iDec]) + dInc) /
TenToPower [iDec];
end else begin
result :=3D dRate;
end ;
end;
function one : double; cdecl;
begin
Result :=3D dRound( 2, 0.529 ) ;
end;
begin
end.
And the command I use to compile it is:
fpc -Sd -Cg -O3 proj.pas
Anyone else having similar issues?
Alan
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Message: 5
Date: Tue, 7 Jul 2009 09:25:41 -0700
From: Alan Krause <al...@shermanloan.com>
Subject: [fpc-pascal] Error attempting to build FPC from svn
To: FPC-Pascal users discussions <fpc-pascal@lists.freepascal.org>
Message-ID:
<bd81a76e0907070925x7d7a2b0ftd64a356e21977...@mail.gmail.com>
Content-Type: text/plain; charset="iso-8859-1"
I am attempting to build FPC from svn (trunk) and receive the following
error message while attempting to build the gtk2 package:
pangoincludes.inc(14,2) Fatal: Can't open include file
"pango-glyph-item.inc"
It appears as if perhaps a file is missing from the repository?
Alan
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Message: 6
Date: Tue, 07 Jul 2009 22:45:03 +0200
From: Marc Santhoff <m.santh...@web.de>
Subject: [fpc-pascal] ifdef'ing FreeBSD by os version number
To: FPC-Pascal users discussions <fpc-pascal@lists.freepascal.org>
Message-ID: <1246999503.980.22.ca...@zaphod.das.netz>
Content-Type: text/plain; charset=UTF-8
Hi,
are there flags defined in the fpc sources for discriminating different
os versions?
While translating some structures from the systems USB headers I found
changes, some fields added and the like. This needs to be reflected in
the translation.
Version in question are FreeBSD4, 6 and 7 currently.
TIA,
