@Viech, as I understand, the issue you pointed is with the Makefile for mumps included in the SDPA package itself (check mumps directory in the source).
In any case, I'd recommend you try to avoid recompiling mumps just for your package by using the configure options: --with-mumps-include="-I/usr/include" --with-mumps-libs="-L/usr/lib -ldmumps -lmumps_common -lpord -lmpiseq" (or something similar...)
Pinned Comments
MartinDiehl commented on 2020-05-15 20:09 (UTC)
The sequential version is disabled, according to the manual it is only meant for systems without a MPI compiler but openmpi is a prerequisite. If there is any need for the sequential version, it can be enabled again.