gistfile1.txt

$ make
ocamlbuild -use-ocamlfind -no-links -I scripts scripts/ppx_gen_flowlibs.native
+ ocamlfind ocamlc -c -safe-string -w A -warn-error A -package core_kernel -package unix -package wtf8 -package compiler-libs.common -w -4-6-29-35-44-48-50 -package ppx_deriving -package dtoa -I scripts -I src/parser_utils/output/__tests__/js_layout_generator -o scripts/ppx_gen_flowlibs.cmo scripts/ppx_gen_flowlibs.ml
findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /usr/lib/ocaml/compiler-libs, /usr/lib/ocaml
+ ocamlfind ocamlopt -c -safe-string -w A -warn-error A -package core_kernel -package unix -package wtf8 -package compiler-libs.common -w -4-6-29-35-44-48-50 -package ppx_deriving -package dtoa -I scripts -I src/parser_utils/output/__tests__/js_layout_generator -o scripts/ppx_gen_flowlibs.cmx scripts/ppx_gen_flowlibs.ml
findlib: [WARNING] Interface topdirs.cmi occurs in several directories: /usr/lib/ocaml/compiler-libs, /usr/lib/ocaml
File "_none_", line 1:
Error (warning 58): no cmx file was found in path for module Ast_helper, and its interface was not compiled with -opaque
File "_none_", line 1:
Error (warning 58): no cmx file was found in path for module Ast_mapper, and its interface was not compiled with -opaque
Command exited with code 2.
Compilation unsuccessful after building 6 targets (2 cached) in 00:00:02.
make: *** [Makefile:311: _build/scripts/ppx_gen_flowlibs.native] Error 10