Bugfix: Allow specification of installed modules found with pkg-config

[[Imported from SVN: r6737]]

bin/duneproject

@@ -78,6 +78,11 @@ modulesexist(){
 	      break
 	  fi
       done
+      if [ "$found" = "0" ]; then
+          # Module not found in list, try pkg-config
+          pkg-config $module &> /dev/null
+          found=$?
+      fi
       if [ "$found" = "0" ]; then
 	  echo "ERROR:">&2
 	  echo "Module with name $dep was not found" >&2