GP_DEFINES_PREFIX
Prefix of the defines file generated by GP.
GP_SRC
Input files to GP, sans extension, with each %.tp resulting in %.t and $(GP_DEFINES_PREFIX)%.t.
GEN_TOM_SRC
TOM code source files, sans extension, that are generated in addition to those mentioned in $(GP_SRC).
LINK_UNITS
The units needed for linking the library, program, or plug-in unit. Set to NONE to avoid default tom.
NEED_LINKFILE
If set, GNUmakefile.link will be generated and employed.
SUBPROJECTS
Subdirectories to be included in the build process.
TOM_MAKEFILES_DIR
Location of the TOM Makefiles II.
TOM_SRC
Hand written, precious, TOM code source files, sans extension.
USES_UNITS
The units needed for compiling the library, program, or plug-in unit. Set to NONE to avoid default tom.

Pieter Schoenmakers <tiggr@gerbil.org>