[lazarus] feature request: compiled units in target dependant directory

[Vincent Snijders]

Hi,

One of the differences between fpc 1.0.x and fpc 1.9.x is the extension
of the compiled unit files for the win32 target.
fpc 1.0.x : .ppw and .ow 
fpc 1.9.x : .ppu and .o

Because with fpc 1.9.x the win32 target uses the same extensions as the
linux target, you can't have a compiled lcl for both win32 and linux in
the same directory anymore. Therefore I propose that the makefiles will
be changed in such a way, that the compiled units go to the directory
units\$target instead of just units. Some care have to be taken for the
location of the compiled units of the interfaces, because there is a
win32 target and a win32 interface and they better not end up in the
same directory.

Maybe the units for the win32 interface compiled for win32 should use:
lcl/units/interfaces/win32/win32
and gtk interface for linux
lcl/units/interfaces/gtk/linux
With macros: lcl/units/interfaces/$lcl_platform/$target

Regards,
Vincent