and failed: 
 # /usr/bin/dnf builddep --installroot /var/lib/mock/f33-build-629525-67616/root/ --setopt=install_weak_deps=0 --disableplugin=local --disableplugin=spacewalk /var/lib/mock/f33-build-629525-67616/root//builddir/build/SRPMS/synfig-1.2.2-10.fc33.src.rpm --setopt=tsflags=nocontexts
No matches found for the following disable plugin patterns: local, spacewalk
Last metadata expiration check: 0:00:05 ago on Fri 07 May 2021 01:04:51 PM EDT.
Error: 
 Problem: package mlt-6.12.0-2.fc30.riscv64 requires opencv-core, but none of the providers can be installed
  - package mlt-devel-6.12.0-2.fc30.riscv64 requires libmlt++.so.3()(64bit), but none of the providers can be installed
  - package mlt-devel-6.12.0-2.fc30.riscv64 requires libmlt.so.6()(64bit), but none of the providers can be installed
  - package mlt-devel-6.12.0-2.fc30.riscv64 requires mlt(riscv-64) = 6.12.0-2.fc30, but none of the providers can be installed
  - package opencv-core-4.3.0-8.fc33.riscv64 requires libvtkCommonCore.so.1()(64bit), but none of the providers can be installed
  - package opencv-core-4.3.0-8.fc33.riscv64 requires libvtkCommonDataModel.so.1()(64bit), but none of the providers can be installed
  - package opencv-core-4.3.0-8.fc33.riscv64 requires libvtkCommonExecutionModel.so.1()(64bit), but none of the providers can be installed
  - package opencv-core-4.3.0-8.fc33.riscv64 requires libvtkInteractionStyle.so.1()(64bit), but none of the providers can be installed
  - package opencv-core-4.3.0-8.fc33.riscv64 requires libvtkRenderingCore.so.1()(64bit), but none of the providers can be installed
  - package opencv-core-4.3.0-8.fc33.riscv64 requires libvtkFiltersSources.so.1()(64bit), but none of the providers can be installed
  - package opencv-core-4.3.0-8.fc33.riscv64 requires libvtkRenderingFreeType.so.1()(64bit), but none of the providers can be installed
  - package opencv-core-4.3.0-8.fc33.riscv64 requires libvtkRenderingOpenGL2.so.1()(64bit), but none of the providers can be installed
  - package opencv-core-4.3.0-8.fc33.riscv64 requires libvtkCommonTransforms.so.1()(64bit), but none of the providers can be installed
  - package opencv-core-4.3.0-8.fc33.riscv64 requires libvtkFiltersCore.so.1()(64bit), but none of the providers can be installed
  - package opencv-core-4.3.0-8.fc33.riscv64 requires libvtkFiltersGeneral.so.1()(64bit), but none of the providers can be installed
  - package opencv-core-4.3.0-8.fc33.riscv64 requires libvtkCommonMath.so.1()(64bit), but none of the providers can be installed
  - package opencv-core-4.3.0-8.fc33.riscv64 requires libvtkFiltersExtraction.so.1()(64bit), but none of the providers can be installed
  - package opencv-core-4.3.0-8.fc33.riscv64 requires libvtkIOCore.so.1()(64bit), but none of the providers can be installed
  - package opencv-core-4.3.0-8.fc33.riscv64 requires libvtkIOImage.so.1()(64bit), but none of the providers can be installed
  - package opencv-core-4.3.0-8.fc33.riscv64 requires libvtkImagingCore.so.1()(64bit), but none of the providers can be installed
  - package opencv-core-4.3.0-8.fc33.riscv64 requires libvtkIOGeometry.so.1()(64bit), but none of the providers can be installed
  - package opencv-core-4.3.0-8.fc33.riscv64 requires libvtkIOPLY.so.1()(64bit), but none of the providers can be installed
  - package opencv-core-4.3.0-8.fc33.riscv64 requires libvtkRenderingGL2PSOpenGL2.so.1()(64bit), but none of the providers can be installed
  - package opencv-core-4.3.0-8.fc33.riscv64 requires libvtkRenderingLOD.so.1()(64bit), but none of the providers can be installed
  - package opencv-core-4.3.0-8.fc33.riscv64 requires libvtkFiltersTexture.so.1()(64bit), but none of the providers can be installed
  - package opencv-core-4.3.0-8.fc33.riscv64 requires libvtkIOExport.so.1()(64bit), but none of the providers can be installed
  - conflicting requests
  - nothing provides hdf5 = 1.10.5 needed by vtk-8.2.0-17.0.riscv64.fc33.riscv64
(try to add '--skip-broken' to skip uninstallable packages)