I have the same problem described in https://stackoverflow.com/questions/46428004/pstoedit-does-not-create-svg . The reason is that plugins are not found as they are now installed to /usr/lib64 but current inkscape-3.70 has /usr/lib hardcoded. Note that this has been fixed in debian and the fix included upstream (in 3.73 I think), the current version is 3.74, cf. https://bugs.gentoo.org/668432 I verified that current upstream, without the patches applied in pstoedit-3.70-r1, works nicely in gentoo.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=993bb72a5bdd66366bcc516532115331340e7427 commit 993bb72a5bdd66366bcc516532115331340e7427 Author: Andreas Sturmlechner <asturm@gentoo.org> AuthorDate: 2020-11-06 00:09:16 +0000 Commit: Andreas Sturmlechner <asturm@gentoo.org> CommitDate: 2020-11-06 02:24:21 +0000 media-gfx/pstoedit: 3.75 version bump, EAPI-7 bump, drop static-libs Closes: https://bugs.gentoo.org/668432 Closes: https://bugs.gentoo.org/691344 Thanks-to: Han Mertens <hanmertens@outlook.com> Closes: https://github.com/gentoo/gentoo/pull/15811 Signed-off-by: Andreas Sturmlechner <asturm@gentoo.org> media-gfx/pstoedit/Manifest | 1 + media-gfx/pstoedit/files/pstoedit-3.75-libdl.patch | 13 +++++ media-gfx/pstoedit/pstoedit-3.75.ebuild | 63 ++++++++++++++++++++++ 3 files changed, 77 insertions(+)