Default Rules

Feature Description

The default rules define a collection of options, operators, common target atoms, metarules, and variables to be used when writing makefiles. These rules provide support for common languages, such as C, C++ and Java as well as many other features.

Impact

Productivity

• Simplified makefiles -- less time spent on makefile development.
• Easier to maintain.
• Eliminates redundancy in makefiles.
• Provides portability -- use same makefile on multiple platforms.

Build Accuracy

• Smaller, simplified makefiles are less error prone.
• Concentrate on what to build not how to build it.

Consequence of Not Having the Feature

• Large, verbose makefiles that are difficult to read and maintain.

Examples

See example makefile comparison.