Bug#1017550: libvigraimpex silently loses OpenEXR support when built with openexr 3.1.5

[Adrian Bunk]

Package: libvigraimpex11
Version: 1.11.1+dfsg-9
Severity: important

https://buildd.debian.org/status/fetch.php?pkg=libvigraimpex&arch=amd64&ver=1.11.1%2Bdfsg-9%2Bb1&stamp=1660741137&raw=0

...
-- Searching for OpenEXR
--    in default locations
-- Could NOT find OpenEXR (missing: OPENEXR_HALF_LIBRARY OPENEXR_ILMIMF_LIBRARY)
...