Create separate Makefiles

Create separate makefiles for dump1090, view1090 and ppup1090. These can
be run with the command line "make -f makedump1090", "make -f
makeview1019" and "make -f makeppup1090"

Pass dump1090 version number into ppup1090 uploader so that coaa1090.obj
doesn't need re-compiling between versions.

Remove ppup1090 from general Makefile - it's not intended for anything
other than RPi, so gives linker errors on other (non Linux raspian)
systems.

makeppup1090

@@ -0,0 +1,27 @@
+#
+# When building a package or installing otherwise in the system, make
+# sure that the variable PREFIX is defined, e.g. make PREFIX=/usr/local
+#
+PROGNAME=ppup1090
+
+ifdef PREFIX
+BINDIR=$(PREFIX)/bin
+SHAREDIR=$(PREFIX)/share/$(PROGNAME)
+EXTRACFLAGS=-DHTMLPATH=\"$(SHAREDIR)\"
+endif
+
+CFLAGS=-O2 -g -Wall -W `pkg-config --cflags librtlsdr`
+LIBS=`pkg-config --libs librtlsdr` -lpthread -lm
+CC=gcc
+
+
+all: ppup1090
+
+%.o: %.c
+	$(CC) $(CFLAGS) $(EXTRACFLAGS) -c $<
+
+ppup1090: ppup1090.o anet.o interactive.o mode_ac.o mode_s.o net_io.o
+	$(CC) -g -o ppup1090 ppup1090.o anet.o interactive.o mode_ac.o mode_s.o net_io.o coaa1090.obj $(LIBS)
+
+clean:
+	rm -f *.o ppup1090