depends -sub CXX gcc &&
depends ncurses &&
depends curl  '--system-curl'  &&
depends expat '--system-expat' &&
depends zlib  '--system-zlib'  &&
depends bzip2 '--system-bzip2' &&
depends libarchive '--system-libarchive' &&
optional_depends libidn '' '' 'internation domain name support' &&
optional_depends qt4 \
	"--qt-gui --qt-qmake=/usr/bin/qt4/qmake" \
	"--no-qt-gui" \
	"for cmake-gui"