what a nice comparison of build tools: Make, Rake, Ant, Gradle

http://hyperpolyglot.org/build

Includes a table listing all their features and showing how the others deal with it.

Make allows you to insert a dash between the tab and before the statement in order to ignore that statement's exit code. The other build tools do not have that feature.

Gradle – competition for Ant and Maven – the best of two worlds (in German)

Gradle – Konkurrenz für Ant und Maven – Das Beste zweier Welten

Building and Testing with Gradle - O'Reilly Media

Building and Testing with Gradle - O'Reilly Media