Downloading sources in src_configure is a bad idea.
Ref: http://mesonbuild.com/FAQ.html#does-wrap-download-sources-behind-my-back
if [[ -z ${_MESON_ECLASS} ]]; then
_MESON_ECLASS=1
-DEPEND=">=dev-util/meson-0.39.1
+DEPEND=">=dev-util/meson-0.40.0
>=dev-util/ninja-1.7.2"
# @ECLASS-VARIABLE: BUILD_DIR
--localstatedir "${EPREFIX}/var/lib"
--prefix "${EPREFIX}/usr"
--sysconfdir "${EPREFIX}/etc"
+ --wrap-mode nodownload
)
# Both meson(1) and _meson_create_cross_file need these