BIRCH - Overriding locally-installed programs

In some cases, two different versions of a program are installed, one in BIRCH and one independently of BIRCH. BIRCH tries to have a minimal impact on the system. Therefore, the search path set up by BIRCH has directories in the following order:

... system paths...

The way to make BIRCH programs override programs that are installed independently of BIRCH is to add symbolic links from the $local/script to $BIRCH/script, or from $local/bin-xxx-xxx to $BIRCH/bin-xxx-xxx.

Please send suggestions of comments regarding this page to