cmake: fix build of t-oidtree
#1748
| Job | Run time |
|---|---|
| 4s | |
| 33s | |
| 0s | |
| 1m 45s | |
| 8m 3s | |
| 7m 15s | |
| 3m 47s | |
| 9m 49s | |
| 31m 17s | |
| 10m 13s | |
| 14m 7s | |
| 10m 38s | |
| 15m 2s | |
| 10m 45s | |
| 10m 8s | |
| 36m 3s | |
| 24m 13s | |
| 27m 54s | |
| 5m 35s | |
| 3m 42s | |
| 4m 9s | |
| 0s | |
| 0s | |
| 3h 55m 2s |