Add extension support with the PINGPONG extension Add extension support. There are two ways to add extensions: 1. as a shared object which will be loaded with ext=<filename> as a parameter to lwwire. See the lwwire_pingpong.c file for details. 2. By doing basically the same thing as a shared object but linking it into the main binary and calling lwwire_register_extension() appropriately.

CFLAGS += -Wall
LDLIBS += -ldl -rdynamic

all: lwwire lwwire-serial lwwire-pingpong.so

%.so: %.c
	$(CC) $(CPPFLAGS) $(CFLAGS) -fPIC -shared -o $@ $<