depends  gnupg     &&
depends  smgl-fhs  &&

optional_depends -sub CXX gcc                                     \
                  "--with-cxx  --with-cxx-binding"        \
                  "--without-cxx  --without-cxx-binding"  \
                  "for C++ support and bindings"          &&

optional_depends  GNAT                  \
                  ""                    \
                  "--without-ada"       \
                  "for ADA95 bindings"  &&

optional_depends gpm                                         \
                 "--with-gpm"                                \
                 "--without-gpm"                             \
                 "for mouse support on a GNU/Linux console"

.