This package uses variables banned in some scopes. This may stop working in future versions of Portage. $ pkgcheck scan -k VariableScope x11-libs/libSM x11-libs/libSM VariableScope: version 1.2.3-r1: variable 'EROOT' used in 'src_configure', line 35 VariableScope: version 1.2.3-r1: variable 'ROOT' used in 'src_configure', lines 36, 45