Hi Daniel,
Thanks for this report. The issue is that pkg-config uses the RPM version
scheme which doesn't support the SemVer build metadata field (the part starting
with the "+" at the end).
I'll implement a fix for this to be released with the next patch version. It
will include only version in the form major.minor.patch-prerelease which should
be compatible with the RPM version comparison routine that pkg-config uses.
Thanks again.
Ryan