[fpc-devel] don't you think it'stime toupdatedelphimodecompatibility? - IDispatch, implements

Matthias Hryniszak matthias at hryniszak.de
Sun May 29 12:22:07 CEST 2005

----- Original Message ----- 
From: "Florian Klaempfl" <F.Klaempfl at gmx.de>
To: "FPC developers' list" <fpc-devel at lists.freepascal.org>
Sent: Saturday, May 28, 2005 11:20 PM
Subject: Re: [fpc-devel] don't you think it'stime
toupdatedelphimodecompatibility? - IDispatch, implements

>> Besides I find that FPC 2.0 makes the executables just to big.+
> C:\fpc>type test1.pp
> begin
>  writeln('Hello world');
> end.
> 28.05.2005  23:14            25.600 test1.exe
> 28.05.2005  23:14            11.264 test1.exe
> IIRC Delphi creates 16 kB something.

And did you try UPX on delphi-created executables? You cannot compare 
something that's not compressed with something that IS compressed - that 
makes no sense.
Other thing is that the Hello, world! app is NOT using anything. AFAIK this 
is not the way the apps are written :). Normally you will link the SysUtils, 
Classes, and under windows the Windows unit what makes the whole thing a lot 
bigger than under Delphi. A simple app that's using SysUtuils under FPC is 
2x the size of the same app compiled with delphi. The other example is the 
Classes unit. I agree, that after using UPX the code differs only 10% (FPC 
is still 10% bigger) but using UPX is not recomended ie. for DLLs. Going on 
with this and compiling the simplies FCL-based application differs really 
strongly from the same done under delphi. I know you can do all of the GUI 
thing using base interface for GUI (Win32 API for example) but this doesn't 
solve prtability issues. I don't like my executables grow beyond some 
certain point and achieving this point after adding 10 controls to my GUI 
app is not acceptable. In addition comparing the sources of VCL and FCL they 
don't differ that much and the source isn't that much bigger so by this kind 
of differences the problem must lie with compiler/linker.


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