I'm not sure where to post this, as devel/php74-ffi does not have a port maintainer listed.
Code:
$ sudo synth status
Regenerating flavor index: this may take a while ...
Scanning entire ports tree.
progress: 25.49%
culprit: devel/php74-ffi
Scan aborted because 'make' encounted an error in the Makefile.
devel/php74-ffi (return code = 1)
Flavor index generation failed: ports scan