[Lazarus] Compiling only LCL to 64-bit, on Windows

[Marcos Douglas]

On Thu, Aug 25, 2011 at 4:40 AM, Sven Barth <pascaldragon at googlemail.com> wrote:
> Am 25.08.2011 09:08, schrieb Andreas Schneider:
>>
>> At Wednesday, 24.08.2011 on 15:06 Marcos Douglas wrote:
>>>
>>> So, what is the best way to use Win 32 and 64-bit, in my case?
>>>
>>
>> I would suggest: don't go the most complicated route ever ;-)
>> It's really dead simple to get cross compilation with Windows as target to
>> run. In your case I would suggest the lowest common denominator: the 32bit
>> compiler. So build from/for 32bit and add the 64bit cross compiler there:
>>
>> I assume the official FPC 2.4.4 release for 32bit to be installed under
>> C:\FPC\2.4.4.
>>
>> set PATH=C:\FPC\2.4.4\bin\i386-win32;%PATH%
>> cd C:\FPC\2.5.1
>> svn co http://svn.freepascal.org/svn/fpc/trunk src
>> cd src
>> make install INSTALL_PREFIX=C:\FPC\2.5.1
>> make crossinstall INSTALL_PREFIX=C:\FPC\2.5.1 OS_TARGET=win64
>> CPU_TARGET=x86_64
>> make clean
>>
>>
>> Done. Now you set the compiler (in Lazarus) to
>> C:\FPC\2.5.1\bin\i386-win32\fpc.exe and switch the target architecture/OS in
>> the project options depending on your needs - the 32bit fpc.exe will then
>> either invoke the 32bit ppcx86.exe to compile for 32bit, or the 32bit
>> ppccrossx86_86.exe to compile for 64bit.
>>
>
> One small addition to your solution:
> copy C:\FPC\2.4.4\bin\i386-win32\fpc.cfg C:\FPC\2.5.1\bin\i386-win32\
> <Edit the copied fpc.cfg and replace all "2.4.4" with "2.5.1">

I use $fpcversion but thanks anyway. ;-)

Marcos Douglas