how to deps in Makefile

Home-makefile_deps.md

@@ -0,0 +1,22 @@
+how to deps in Makefile
+```
+# ...
+DEPS = cowboy lager jsx mysql
+dep_cowboy_commit = 2.6.1
+dep_lager_commit = 3.6.8
+dep_jsx_commit = 2.9.0
+dep_mysql = git https://github.com/mysql-otp/mysql-otp 1.4.0
+
+DEP_PLUGINS = cowboy
+
+# this must be first
+include erlang.mk
+
+# Compile flags
+ERLC_COMPILE_OPTS= +'{parse_transform, lager_transform}'
+
+# Append these settings
+ERLC_OPTS += $(ERLC_COMPILE_OPTS)
+TEST_ERLC_OPTS += $(ERLC_COMPILE_OPTS)
+# ...
+```