symfony/AsseticBundle — comment on commit 3bde05ffbf8a6f28fb2b98b943d852e54db57854
File: DependencyInjection/Compiler/RouterResourcePass.php line 45
By docteurklein:

Couldn't you use `$container->getDefinition('routing.loader')->addMethodCall('addResource', array($pathToDevRoutingFile)` ?

Just an idea.