In commit cbcf5bc64a, newer librsvg APIs were used that are not available in versions between 2.36.0 and 2.50.0, e.g. rsvg_handle_get_intrinsic_size_in_pixels which was included in 2.51.x.
This has been resolved by adding a HAVE_SVG_2_51 and using it for both rsvg_handle_get_intrinsic_size_in_pixels and rsvg_handle_render_document, though the later technically landed in 2.46.0.
Reviewed-by: Christopher Michael <devilhorns@comcast.net>
Differential Revision: https://phab.enlightenment.org/D12293
Currently, vector and image support svg format via different rountine.
Our vector loader implemenst on its own drawing mechanism for svg,
but in case of image loader, it depends on rsvg library.
By Comparing both, our vector svg is winner at performance wise.
we can remove rsvg routine later.
For now, these two loader names are conflicted, we should separate their names
with svg and rsvg.
Joshua Strobl
Carsten Haitzler
Hermet Park