[examples][1prot][fix] Do not require UMFPack
See merge request !2044 (merged)
(cherry picked from commit 41fc30cc)
d1c31e0f [examples][1prot][fix] Do not require UMFPack
[examples][1prot][fix] Do not require UMFPack
See merge request !2044 (merged)
(cherry picked from commit 41fc30cc)
d1c31e0f [examples][1prot][fix] Do not require UMFPack