Building GtkD app on Win32 results in 111 MiB file mostly from zeroes (compressed size - 324 KiB)

[Trass3r]

> doCompile.bat:
> dmd -c -release -IgtkD-1.4.1-release\headers main.d
>
> doLink.bat:
> link  
> main,"testGtkD.exe",,"gtkD-1.4.1-release\library.lib"+user32+kernel32/noi;

Don't invoke optlink directly like that.
Just use something like 'dmd -release main.obj  
gtkD-1.4.1-release\library.lib -oftestGtkD' for linking.
(though I don't know why you separate compilation and linking here, a  
simple 'dmd -release main.d gtkD-1.4.1-release\library.lib -oftestGtkD' is  
enough)