[default]
TARGDIR_tmp /tmp
TARGDIR_opt /opt
TARGDIR_runs #{getenv MT_RUN_AREA_HOME}/runs
BUILDDIR    #{getenv MT_RUN_AREA_HOME}/..

# Your variables here are grouped by targets [SYSTEM/RELEASE]
[SYSTEM_val/RELEASE_val]
ANOTHERVAR only defined if target is SYSTEM_val/RELEASE_val
