merge.rf

Source directories within the projected tree can be populated with special files, named merge.rf (for merge rule files), which provide a number of directives for mkmerge, for example:

• Preventing merging source files depending upon flags specified in the profile file

• Exporting source.h files to other directories

• Pruning the merge of the source tree, depending on the flags.

During a merge, directories are examined recursively and merge.rf files are analyzed. If no problems are encountered, the real merge begins: directories, links and files are created as specified in the various merge.rf files found.

A merge.rf file is composed of lines that are evaluated one at a time. A status is associated with this file. This status evolves as the file is analyzed. Depending on its value at the end of the merge.rf file, the current directory will be merged or cut.

A merge.rf file can contain commands to describe how the current directory should be merged, where it will go, and when it will be merged. The MKMERGE_IGNORE environment variable can be used to specify a list of file suffixes that should be ignored during the merge process.

For more information about merge.rf, see the mkmerge(1CC) man page.