ubuntu 18.04
compile crypto currency

compile process:
cd xxxxcoin
./autogen.sh
./configure
./make

got xxxxcoind in /xxxxcoin/src, but the size over 140M

then compile :
sudo apt-get install g++-mingw-w64-i686
cd xxxxcoin
cd depends
make HOST=x86_64-w64-mingw32 -j4
cd ..
CONFIG_SITE=$PWD/depends/x86_64-w64-mingw32/share/config.site ./configure --prefix=/
make
got xxxxcoin-qt in src/qt ,but the size over 140M

need help !!