diff --git a/harmony.cabal b/harmony.cabal
--- a/harmony.cabal
+++ b/harmony.cabal
@@ -6,7 +6,7 @@
 -- PVP summary:      +-+------- breaking API changes
 --                   | | +----- non-breaking API additions
 --                   | | | +--- code changes with no API change
-version:             0.1.0.1
+version:             0.1.0.2
 
 synopsis:            A web service specification compiler that generates implementation and tests.
 
@@ -33,6 +33,7 @@
                    , templates/client/python/test.tpl
 
 extra-source-files:  README.md
+                   , make_bnfc.sh
 
 cabal-version:       >= 1.18
 
diff --git a/make_bnfc.sh b/make_bnfc.sh
new file mode 100644
--- /dev/null
+++ b/make_bnfc.sh
@@ -0,0 +1,27 @@
+#!/bin/sh
+
+# Compiles the language specification if it is needed, removing all unnecessary files and appending
+# a pragma to tell HLint to ignore those files.
+
+makeBnfc() {
+  bnfc -d language-spec/Language.cf; 
+  rm Language/Test.hs
+  rm Language/Print.hs
+  mv Language src
+}
+
+printf "%s" "Checking status of language specification..."
+if [ ! -d 'src/Language' ]; then
+  printf " %s\n" "Language specification needs to be compiled"
+  makeBnfc;
+  exit 0
+fi
+
+if [ 'language-spec/Language.cf' -nt src/Language/ ]; then 
+  printf " %s\n" "Language specification needs to be re-compiled";
+  rm -rf src/Language;
+  makeBnfc;
+  exit 0
+fi
+
+printf "%s\n" " OK"