depends  ninja-build-system &&
depends  meson    &&
depends  glib2    &&
depends  libxml2  &&
depends  flex     &&
depends  bison    &&
depends  perl     &&

#optional_depends  valgrind              \
#                  "--enable-valgrind"   \
#                  "--disable-valgrind"  \
#                  "for better integration with valgrind"  &&

optional_depends  GETTEXT \
                  nls={enabled,disabled} \
                  "to use Native Language Support"  &&

optional_depends  gtk-doc \
                  doc={enabled,disabled} \
                  "to build documentation"  &&

if is_depends_enabled $SPELL gtk-doc; then
  depends  pyxml
fi &&

optional_depends gobject-introspection \
                 introspection={enabled,disabled} \
                 "to enable introspection for this build" &&


optional_depends libunwind \
                 libunwind={enabled,disabled} \
                 'to generate backtraces' &&

if is_depends_enabled $SPELL libunwind; then
  optional_depends elfutils \
                   libdw={enabled,disabled} \
                   'to generate better backtraces from libunwind'
fi