Consult the list of supported platforms via the system requirements link on the Knowledge Center.
Sun WorkShop 6, update2, C++ 5.3, Patch 111685
Sun C++ 5.7 2005/01/07
Solaris SPARC Platform 32-bit Java 2 SDK, Java 1.4.2 or 1.5
Ant version (recommended): 1.6.5.