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-rw-r--r--doc/src/guide/app.asciidoc11
1 files changed, 11 insertions, 0 deletions
diff --git a/doc/src/guide/app.asciidoc b/doc/src/guide/app.asciidoc
index 229ce97..94f8eb1 100644
--- a/doc/src/guide/app.asciidoc
+++ b/doc/src/guide/app.asciidoc
@@ -284,6 +284,17 @@ include erlang.mk
ERLC_OPTS := $(filter-out -Werror,$(ERLC_OPTS))
----
+==== ERLC_ASN1_OPTS
+
+`ERLC_ASN1_OPTS` can be used to pass compiler options when compiling
+ASN.1 files. Please refer to the
+http://erlang.org/doc/man/asn1ct.html[asn1ct manual] for the full list.
+
+By default, Erlang.mk will leave this empty.
+
+You can redefine this variable in your Makefile.
+Please see the `ERLC_OPTS` section for instructions.
+
==== ERLC_EXCLUDE
`ERLC_EXCLUDE` can be used to exclude some modules from the