Early exit techniques

[kalons]

The way we deal with selectively building parts of a project is to use build rules (referencing macros passed on the command-line as you mention) on Subroutine Call steps for each part of the build that is optional. Using this technique is straightforward, doesn't require aborting/throwing, and seems cleaner than a "goto" type of action. The VisBuildPro.bld sample demonstrates this technique.

In the case of a compile step failing, aborting of the build should be automatic (with failure steps being built and the build ending without processing steps following the failed step) if the step is not marked to ignore failure.