support Lua5.3 ?

[rubbyzhang]

1 will update my project to lua5.3 , 5.3 support 64 bit integer defaultly. so , do i need to change something in pb-lua for better compatibility ?

[daurnimator]

The reliance on luabitop causes an issue installing with luarocks configured for 5.3:

$ sudo luarocks install https://raw.githubusercontent.com/Neopallium/lua-pb/master/lua-pb-scm-0.rockspec
Missing dependencies for lua-pb scm-0:
   luabitop >= 1.0.1 (not installed)
   struct >= 1.2 (not installed)

lua-pb scm-0 depends on luabitop >= 1.0.1 (not installed)
Installing https://luarocks.org/luabitop-1.0.2-1.src.rock
gcc -O2 -fPIC -I/usr/include -c bit.c -o bit.o
bit.c: In function ‘barg’:
bit.c:83:2: error: #error "Unknown number type, check LUA_NUMBER_* in luaconf.h"
 #error "Unknown number type, check LUA_NUMBER_* in luaconf.h"
  ^~~~~

Error: Failed installing dependency: https://luarocks.org/luabitop-1.0.2-1.src.rock - Build error: Failed compiling object bit.o