antlr-makefile-specification

antlr-makefile-specification is a variable defined in `antlr-mode.el'.
Its value is

("
" ("GENS" "GENS%d" " \\
	") "$(ANTLR)")

Documentation:
Variable to specify the appearance of the generated makefile rules.
This variable influences the output of M-x antlr-show-makefile-rules.
It looks like (RULE-SEP GEN-VAR-SPEC COMMAND).

RULE-SEP is the string to separate different makefile rules. COMMAND is
a string with the command which runs the Antlr tool, it should include
all options except the option "-glib" which is automatically added
if necessary.

If GEN-VAR-SPEC is nil, each target directly consists of a list of
files. If GEN-VAR-SPEC looks like (GEN-VAR GEN-VAR-FORMAT GEN-SEP), a
Makefile variable is created for each rule target.

Then, GEN-VAR is a string with the name of the variable which contains
the file names of all makefile rules. GEN-VAR-FORMAT is a format string
producing the variable of each target with substitution COUNT/%d where
COUNT starts with 1. GEN-SEP is used to separate long variable values.

You can customize this variable.