Some binaries in can-utils depend on features in the socket-can svn

repository. Building with exported headers from an unpatched kernel will
fail due to missing symbols or headers.

This patch adds two make variables to optionally disable building such
binaries, like this:

make PROGRAMS_ISOTP= PROGRAMS_CANGW= PROGRAMS_SLCAN= all

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Oliver Hartkopp <oliver@hartkopp.net>

Makefile

@@ -53,10 +53,16 @@ CFLAGS    = -O2 -Wall -Wno-parentheses -I$(KERNELDIR)/include \
 	    -DPF_CAN=29 \
 	    -DAF_CAN=PF_CAN
 
-PROGRAMS = candump cansniffer cansend canplayer canlogserver cangen\
-	   canbusload log2long log2asc asc2log bcmserver\
-	   isotpdump isotprecv isotpsend isotpsniffer isotptun\
-	   slcan_attach slcand slcanpty canfdtest cangw
+PROGRAMS_ISOTP = isotpdump isotprecv isotpsend isotpsniffer isotptun
+PROGRAMS_CANGW = cangw
+PROGRAMS_SLCAN = slcan_attach slcand
+PROGRAMS = candump cansniffer cansend canplayer cangen canbusload\
+	   log2long log2asc asc2log\
+	   canlogserver bcmserver\
+	   $(PROGRAMS_ISOTP)\
+	   $(PROGRAMS_CANGW)\
+	   $(PROGRAMS_SLCAN)\
+	   slcanpty canfdtest
 
 all: $(PROGRAMS)