depends -sub CXX gcc &&
depends gmp     &&
depends mpfr    &&
depends intltool &&
depends libxml2 &&
depends readline &&
depends xml-parser-expat &&

depends autoconf  &&
depends automake  &&
depends libtool   &&

optional_depends gnuplot "" "" "to plot functions"&&
optional_depends curl    "--with-libcurl" "--without-libcurl" "to retrieve exchange rates" &&
optional_depends icu     "--with-icu" "--without-icu" "support for case-insensitive unicode strings" &&
optional_depends GETTEXT "--enable-nls" "--disable-nls" "Native Language Support"
