Fixed a few problems with ptransfer in linux builds, but then relagated it to Win32 only builds (left the errors for M$-only functions like _kbhit)

Added a makefile for it.

bacnet-stack/demo/ptransfer/Makefile

@@ -0,0 +1,37 @@
+#Makefile to build BACnet Application for the Linux Port
+
+# tools - only if you need them.
+# Most platforms have this already defined
+# CC = gcc
+
+TARGET = ptransfer
+
+TARGET_BIN = ${TARGET}$(TARGET_EXT)
+
+SRCS = main.c
+
+OBJS = ${SRCS:.c=.o}
+
+all: ${BACNET_LIB_TARGET} Makefile ${TARGET_BIN}
+
+${TARGET_BIN}: ${OBJS} Makefile ${BACNET_LIB_TARGET}
+	${CC} ${PFLAGS} ${OBJS} ${LFLAGS} -o $@
+	size $@
+	cp $@ ../../bin
+
+lib: ${BACNET_LIB_TARGET}
+
+${BACNET_LIB_TARGET}:
+	( cd ${BACNET_LIB_DIR} ; $(MAKE) clean ; $(MAKE) )
+
+.c.o:
+	${CC} -c ${CFLAGS} $*.c -o $@
+
+depend:
+	rm -f .depend
+	${CC} -MM ${CFLAGS} *.c >> .depend
+
+clean:
+	rm -f core ${TARGET_BIN} ${OBJS} ${BACNET_LIB_TARGET} $(TARGET).map
+
+include: .depend