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| -rw-r--r-- | doc/src/guide/deps.asciidoc | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/doc/src/guide/deps.asciidoc b/doc/src/guide/deps.asciidoc index 47e1bee..3ba7a39 100644 --- a/doc/src/guide/deps.asciidoc +++ b/doc/src/guide/deps.asciidoc @@ -515,6 +515,28 @@ projects using the `NO_AUTOPATCH` variable: [source,make] NO_AUTOPATCH = cowboy ranch cowlib +=== Dealing with duplicate modules + +When there are duplicate modules found in both applications +and their dependencies, some tasks may fail. Erlang expects +modules to be unique in general. + +When the duplicates are found in dependencies, you will need +to remove one of the duplicates at fetch time. To do so, you +can add a rule similar to this to your Makefile before including +'erlang.mk': + +[source,make] +---- +DEPS_DIR = $(CURDIR)/deps + +deps:: $(DEPS_DIR)/cowlib + $(verbose) rm -f $(DEPS_DIR)/cowlib/src/cow_ws.erl +---- + +This must be done from the application that has this dependency. +Only define the `DEPS_DIR` variable if necessary. + === Skipping deps It is possible to temporarily skip all dependency operations. |