[Lazarus] Cross compiling

[Brad Campbell]

Alberto Narduzzi wrote:
> Patrick,
> 
> I have quick-read the links, and I think the quickest and easiest way of 
> doing it is to install fpc and Lazarus on a Windows box, and then 
> recompile the same source code.
> As I have a virtual Windows machine (under VirtualBox) on my Linux box, 
> I think I can give it a try.

Meh.. the quickest and easiest way is the one where you can type "make all" on your linux box and 
produce all your different architecture binaries all in one stroke. I don't see ever how running a 
virtual machine just to compile code for a single architecture should ever be called easy.

Read the docs, do a bit of fiddling and *boom* you have a workable cross compile environment. Trust 
me, if I can do it, anyone can.

If you get the mingw-binutils installed you can try a couple of these :

I use this to build my windows compiler : (watch the line wrap)

cd ~/src/fpc
FPC=ppc386 make crossall crossinstall CPU_TARGET=i386 OS_TARGET=win32 CROSSBINDIR=/opt/cross/bin 
BINUTILSPREFIX=i386-mingw- INSTALL_PREFIX=/opt/cross OPT="-gl -XX -CX"

.. and this to build the LCL for win32.

cd ~/src/lazarus
export LAZARUS_CONFIG_DIR=/home/brad/.lazarus
make OS_TARGET=win32 CPU_TARGET=i386 LCL_PLATFORM=win32 OPT="-gl -CX " all

I kinda cheat with lazarus in that I build it default (for GTK2) then I build the OSX/Win32 builds, 
then I build it *again* for linux including the idepkg option.

My compiler, toolchain and binutils lives in /opt/cross. Modify to suit.

I don't build my applications with lazbuild, I use a custom makefile as I find it easier, but 
whatever works.

All my applications are compiled for linux-i386, win32-i386, darwin-i386 & darwin-powerpc using a 
single source tree and a single make file on one linux machine. It's much easier to maintain and I 
don't have to fight with windows or its related baggage.

Brad
-- 
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