First attempt to clean-up Makefiles.

1. Top (main) makefile defines build configuration variables and export them for sub-makes to use. BAC_ROUTING is defined here - is has been removed from config.h.
2. A new makefile has been added in demo subdirectory. It builds the demo applications. NOTE: the 'ports' target is not build.

bacnet-stack/demo/mstpcap/Makefile

@@ -7,39 +7,11 @@
 # Executable file name
 TARGET = mstpcap
 
-# Configure the BACnet Datalink Layer
-BACDL_DEFINE = -DBACDL_MSTP
-BACNET_DEFINES = -DPRINT_ENABLED=1 -DBACAPP_ALL -DBACFILE
-DEFINES = $(BACNET_DEFINES) $(BACDL_DEFINE)
+TARGET_BIN = ${TARGET}$(TARGET_EXT)
 
-# Directories
-BACNET_PORT = linux
-BACNET_PORT_DIR = ../../ports/${BACNET_PORT}
+# This demo seems to be a little unique
+DEFINES = $(BACNET_DEFINES) -DBACDL_MSTP
 BACNET_SOURCE_DIR = ../../src
-BACNET_INCLUDE = ../../include
-
-# Compiler Setup
-INCLUDES = -I$(BACNET_INCLUDE) -I$(BACNET_PORT_DIR)
-ifeq (${BACNET_PORT},linux)
-PFLAGS = -pthread
-TARGET_BIN = ${TARGET}
-LIBRARIES=-lc,-lgcc,-lrt,-lm
-endif
-ifeq (${BACNET_PORT},win32)
-TARGET_BIN = ${TARGET}.exe
-LIBRARIES=-lws2_32,-lgcc,-lm,-liphlpapi,-lwinmm
-endif
-#build for release (default) or debug
-DEBUGGING =
-OPTIMIZATION = -Os
-ifeq (${BUILD},debug)
-OPTIMIZATION = -O0
-DEBUGGING = -g
-endif
-# put all the flags together
-CFLAGS = -Wall $(DEBUGGING) $(OPTIMIZATION) $(INCLUDES) $(DEFINES)
-CFLAGS += -fdata-sections -ffunction-sections
-LFLAGS = -Wl,-Map=$(TARGET).map,$(LIBRARIES),--gc-sections
 
 SRCS = main.c \
 	${BACNET_PORT_DIR}/rs485.c \
@@ -54,10 +26,11 @@ SRCS = main.c \
 OBJS = ${SRCS:.c=.o}
 
 all: Makefile ${TARGET_BIN}
-	size ${TARGET_BIN}
 
 ${TARGET_BIN}: ${OBJS} Makefile
 	${CC} ${PFLAGS} ${OBJS} ${LFLAGS} -o $@
+	size $@
+	cp $@ ../../bin
 
 .c.o:
 	${CC} -c ${CFLAGS} $*.c -o $@