OSX Yosemite 10.10.5 + make error about pfff HOT 5 CLOSED

Same error on Mac OS X 10.11.3.

from pfff.

I removed the duplicate exception.

from pfff.

Got the following error after this fix. Is there a difference between Errors and Fatal warnings?

Error: Some fatal warnings were triggered (2 occurrences)
make[2]: *** [php_vs_php.cmo] Error 2
make[1]: *** [rec] Error 1
make: *** [all] Error 2

from pfff.

same here:
ocamlc.opt -g -thread -dtypes -w +A-4-29-6-45-32 -warn-error +a -bin-annot -absname -I ../../commons -I ../../commons/ocollection -I ../../commons/ocamlextra -I ../../h_program-lang -I ../../h_version-control -I ../../globals -I ../../external/ -I ../../matcher -I ../parsing -c php_vs_php.ml
File "/Users/henry.li/softwares/facebook/pfff/lang_php/matcher/php_vs_php.ml", line 290, characters 17-33:
Warning 3: deprecated: String.lowercase
Use String.lowercase_ascii instead.
File "/Users/henry.li/softwares/facebook/pfff/lang_php/matcher/php_vs_php.ml", line 290, characters 38-54:
Warning 3: deprecated: String.lowercase
Use String.lowercase_ascii instead.
File "/Users/henry.li/softwares/facebook/pfff/lang_php/matcher/php_vs_php.ml", line 1:
Error: Some fatal warnings were triggered (2 occurrences)
make[2]: *** [php_vs_php.cmo] Error 2
make[1]: *** [rec] Error 1
make: *** [all] Error 2

from pfff.

I fixed it I think.

from pfff.