@@ -12,9 +12,8 @@
 nontools = $(filter-out %.exe.c,   $(src))
 cobjects = $(filter     %.c,       $(nontools))
 sobjects = $(filter %.${TARGET}.s, $(nontools))
 
-gpp = gpp
 cflags = -std=c11 -isystem ${OUT} -fPIC -nostdlib ${COMPLIB} -L${OUT}
 
 m-env = atom_target_arch=${ARCH}
 m-env += atom_target_os=${OS}
@@ -23,10 +22,9 @@
 endif
 m-env += target_posix=${POSIX}
 m-env += target_unix=${UNIX}
 
-m-grammar = $(file < ${TMP}/precomp.g)
-m-comp = $(gpp) $(m-grammar) $(m-env:%=-D%)
+m-comp = ${m4} $(m-env:%=-D%)
 
 obj: $(cobjects:%.c=${OUT}/$(mod).%.o) \
 	 $(sobjects:%.s=${OUT}/$(mod).%.o)
 tool: $(tools:%.exe.c=${OUT}/$(mod).%) \
@@ -41,9 +39,8 @@
 	@echo cobjects = $(cobjects)
 	@echo sobjects = $(sobjects)
 	@echo headers = $(headers)
 	@echo m-comp = $(m-comp)
-	@echo m-grammar = $(m-grammar)
 	@echo m-env = $(m-env) "$(m-env:%=-D%)"
 	@echo mod = $(mod)
 
 ${OUT}/k/%.h: %.h.m