Move xml_gen tool to its own separate directory

.gitignore

@@ -11,4 +11,5 @@ priv/
 _build
 vars.config
 rebar
-deps/
+deps/
+tools/*.beam

Makefile

@@ -12,4 +12,8 @@ test: all
 check-syntax:
 	gcc -o nul -S ${CHK_SOURCES}
 
+xmlrpc-codec:
+	erlc -o tools -I include tools/xml_gen.erl
+	erl -noinput +B -pa tools -eval 'case xml_gen:compile("tools/xmlrpc_codec.spec") of ok -> halt(0); _ -> halt(1) end.' 
+
 .PHONY: clean src test all

spec/README.md → tools/README.md

@@ -3,4 +3,4 @@ This file is used to generate `src/xmlrpc_codec.erl`.
 From repository root, you can regenerate the file with:
 
     erl -noinput +B -pa ebin -pa deps/*/ebin -eval \
-          'case xml_gen:compile("spec/xmlrpc_codec.spec") of ok -> halt(0); _ -> halt(1) end.'
+          'case xml_gen:compile("tools/xmlrpc_codec.spec") of ok -> halt(0); _ -> halt(1) end.'