Make 'dzil' discoverable

perl/Makefile

@@ -37,7 +37,7 @@ clean-gherkin-languages: ## Remove gherkin-languages.json and any derived files
 	echo "TODO: Depends on perl, this task should only depend on jq"
 
 clean: ## Remove all build artifacts and files generated by the acceptance tests
-	PERL5LIB=${PERL5LIB} dzil clean
+	PATH=$$PATH:perl5/bin PERL5LIB=${PERL5LIB} dzil clean
 	rm -rf lib/Gherkin/Generated/Languages.pm
 	rm -rf acceptance
 	rm -rf perl5
@@ -50,11 +50,11 @@ lib/Gherkin/Generated/Languages.pm: perl5 $(SOURCE_FILES)
 	# this generates an output file in the source tree (ugh!)
 	# it enables us to run the tests using 'lib/' in the path,
 	# which is less complicated than trying to use Gherkin-<VERSION>
-	PERL5LIB=${PERL5LIB} dzil build
+	PATH=$$PATH:perl5/bin PERL5LIB=${PERL5LIB} dzil build
 
 perl5:
 	cpanm --notest --local-lib ./perl5 --installdeps --with-develop .
-	PERL5LIB=${PERL5LIB} dzil authordeps --missing | cpanm --notest --local-lib ./perl5
+	PATH=$$PATH:perl5/bin PERL5LIB=${PERL5LIB} dzil authordeps --missing | cpanm --notest --local-lib ./perl5
 
 $(GHERKIN_PARSER): $(GHERKIN_RAZOR) ../gherkin.berp
 	berp -g ../gherkin.berp -t $< -o $@ --noBOM