[Lazarus] Tips for setting up Linux64 to Linux32 cross compile?

[Anthony Walter]

I am having issues setting up the linking portion of cross compiling from
linux 64 to linux 32.

The problem come with linking to all the required linux-i386 libraries on
my 64 bit system. I am talking about the linking to 32 bit libs like
libcairo, libpango, libgmodule-2.0, and so on. All the libraries needed by
a normal graphics application for 32bit linux.

I've gone setup my 64bit linux to have a /usr/lib/i386-linux-gnu/ folder,
and I've copied some files there from my working 32bit linux.

I've also modified my fpc.cfg liks so:

# path to the gcclib
#ifdef cpui386
-Fl/usr/lib/gcc/i686-linux-gnu/4.8
-Fl/usr/lib/i386-linux-gnu/
-XPi386-linux-
#endif
#ifdef cpux86_64
-Fl/usr/lib/gcc/x86_64-linux-gnu/4.8
#endif

here are the errors I get when I try to build a sample graphical program I
called 'build32.lpr'

http://pastebin.com/cjYTbqXq

Where do I even go from there to get cross compiling gui aps working?
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