First cut of formal ABI definition, so that the same definition can be

used to generate the function table in lsi as the header file which
code can include to get a matching ABI definition.

src/lsi/Makefile

@@ -5,6 +5,9 @@ PREFIX?=	/usr/local
 OBJS=	main.o vm.o plugins.o dmx.o midi.o beatdetect.o fft.o map3d.o mouse.o
 SRCS=	main.c vm.c plugins.c dmx.c midi.c beatdetect.c fft.c map3d.c mouse.c
 
+OBJS+=	abi.o
+SRCS+=	abi.c
+
 COMMONOBJS=	mem.o hash.o
 COMMONDIR=	../common
 
@@ -20,6 +23,12 @@ PROGOBJS=	${OBJS} ${COMMONOBJS:S/^/${COMMONDIR}\//}
 lsi: ${OBJS}
 	${LINK.c} -o ${.TARGET} ${PROGOBJS} ${LDLIBS}
 
+abi.c:	abispec makeabi
+	./makeabi abispec
+
+abi.lh:	abispec makeabi
+	./makeabi abispec
+
 install: lsi
 	${INSTALL} -d ${PREFIX}/bin
 	${INSTALL} -c lsi ${PREFIX}/bin/lsi
@@ -28,4 +37,4 @@ depend:
 	mkdep -- ${CFLAGS} ${CPPFLAGS} ${SRCS}
 
 clean:
-	rm -f ${OBJS} lsi
+	rm -f ${OBJS} lsi abi.c abi.lh