[Qt-interest] possible to cut size of my final released package?

[alpha_one_x86]

I have for 500KB of application 4.2MB total.
I have compiled Qt without I not used, I have used upx with --lzma -7
option but for you prefer --lzma -9, I have remove rtti and exeption for
remove mingw10.dll dependency.
I have compiled Qt and my application with -Os with gcc for minimize the
size and with -msse -mmmx.
With all this tweak you can have your application for less than 4MB.