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-rw-r--r--doc/sphinx/practical-tools/utilities.rst4
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/sphinx/practical-tools/utilities.rst b/doc/sphinx/practical-tools/utilities.rst
index 8346b72cb9..35231610fe 100644
--- a/doc/sphinx/practical-tools/utilities.rst
+++ b/doc/sphinx/practical-tools/utilities.rst
@@ -144,6 +144,10 @@ Here we describe only few of them.
:CAMLFLAGS:
can be used to specify additional flags to the |OCaml|
compiler, like ``-bin-annot`` or ``-w``....
+:OCAMLWARN:
+ it contains a default of ``-warn-error +a-3``, useful to modify
+ this setting; beware this is not recommended for projects in
+ Coq's CI.
:COQC, COQDEP, COQDOC:
can be set in order to use alternative binaries
(e.g. wrappers)