Ease cross-compilation about pigpio HOT 4 CLOSED

# MakeCross
ifdef HF
    CC      = arm-linux-gnueabihf-gcc
    AR      = arm-linux-gnueabihf-ar
    RANLIB  = arm-linux-gnueabihf-ranlib
    SIZE    = arm-linux-gnueabihf-size
    SHLIB   = arm-linux-gnueabihf-gcc -shared
    STRIPLIB = arm-linux-gnueabihf-strip --strip-unneeded
else
    CC      = arm-linux-gnueabi-gcc
    AR      = arm-linux-gnueabi-ar
    RANLIB  = arm-linux-gnueabi-ranlib
    SIZE    = arm-linux-gnueabi-size
    SHLIB   = arm-linux-gnueabi-gcc -shared
    STRIPLIB = arm-linux-gnueabi-strip --strip-unneeded
endif

CFLAGS  += -O3 -Wall -pthread

LIB1     = libpigpio.so
OBJ1     = pigpio.o command.o

LIB2     = libpigpiod_if.so
OBJ2     = pigpiod_if.o command.o

LIB3     = libpigpiod_if2.so
OBJ3     = pigpiod_if2.o command.o

LIB      = $(LIB1) $(LIB2) $(LIB3)

ALL     = $(LIB) x_pigpio x_pigpiod_if x_pigpiod_if2 pig2vcd pigpiod pigs

LL1      = -L. -lpigpio -pthread -lrt

LL2      = -L. -lpigpiod_if -pthread -lrt

LL3      = -L. -lpigpiod_if2 -pthread -lrt

all:    $(ALL)

pigpio.o: pigpio.c pigpio.h command.h custom.cext
    $(CC) $(CFLAGS) -fpic -c -o pigpio.o pigpio.c

pigpiod_if.o: pigpiod_if.c pigpio.h command.h pigpiod_if.h
    $(CC) $(CFLAGS) -fpic -c -o pigpiod_if.o pigpiod_if.c

pigpiod_if2.o: pigpiod_if2.c pigpio.h command.h pigpiod_if2.h
    $(CC) $(CFLAGS) -fpic -c -o pigpiod_if2.o pigpiod_if2.c

command.o: command.c pigpio.h command.h
    $(CC) $(CFLAGS) -fpic -c -o command.o command.c

x_pigpio:   x_pigpio.o $(LIB1)
    $(CC) -o x_pigpio x_pigpio.c $(LL1)

x_pigpiod_if:   x_pigpiod_if.o $(LIB2)
    $(CC) -o x_pigpiod_if x_pigpiod_if.c $(LL2)

x_pigpiod_if2:  x_pigpiod_if2.o $(LIB3)
    $(CC) -o x_pigpiod_if2 x_pigpiod_if2.c $(LL3)

pigpiod:    pigpiod.o $(LIB1)
    $(CC) -o pigpiod pigpiod.c $(LL1)

pigs:   pigs.o command.o
    $(CC) -o pigs pigs.c command.c

pig2vcd:    pig2vcd.o
    $(CC) -o pig2vcd pig2vcd.c

clean:
    rm -f *.o *.i *.s *~ $(ALL)


$(LIB1):    $(OBJ1)
    $(SHLIB) -o $(LIB1) $(OBJ1)
    $(STRIPLIB) $(LIB1)
    $(SIZE)     $(LIB1)

$(LIB2):    $(OBJ2)
    $(SHLIB) -o $(LIB2) $(OBJ2)
    $(STRIPLIB) $(LIB2)
    $(SIZE)     $(LIB2)

$(LIB3):    $(OBJ3)
    $(SHLIB) -o $(LIB3) $(OBJ3)
    $(STRIPLIB) $(LIB3)
    $(SIZE)     $(LIB3)

# generated using gcc -MM *.c

command.o: command.c pigpio.h command.h
pig2vcd.o: pig2vcd.c pigpio.h
pigpio.o: pigpio.c pigpio.h command.h custom.cext
pigpiod.o: pigpiod.c pigpio.h
pigpiod_if.o: pigpiod_if.c pigpio.h command.h pigpiod_if.h
pigpiod_if2.o: pigpiod_if2.c pigpio.h command.h pigpiod_if2.h
pigs.o: pigs.c pigpio.h command.h
x_pigpio.o: x_pigpio.c pigpio.h
x_pigpiod_if.o: x_pigpiod_if.c pigpiod_if.h pigpio.h
x_pigpiod_if2.o: x_pigpiod_if2.c pigpiod_if2.h pigpio.h