NOTE: You don't need new copies of the *.h files if you obtained them above.
gcc -O2 -o bbbg0 bbbg0.c lip.o -lm
(LINUX: gcc -O2 -o bbbg0 bbbg0.c lip.o -lm -DBIGENDIAN=0 -DDOUBLES_LOW_HIGH=1 -DPENTIUM)
(ALPHA: gcc -O2 -DBIGENDIAN=0 -DALPHA=1 -DDOUBLES_LOW_HIGH=1 -o bbbg0 bbbg0.c lip.o -lm)
ratbase 0 < r773
algbase 0 < alat