[NTG-context] LuaTeX incompatible with Lua

Dear list, The following Lua script behaves differently when executed in Lua vs. LuaTeX. print(os.execute("date")) It seems that the definition of os_execute in loslibext.c was copied over from Lua 5.1 and not adapted to newer versions. $ lua5.1 test.lua 0 $ lua5.2 test.lua true exit 0 $ lua5.3 test.lua true exit 0 $ texlua test.lua 0 $ luajit test.lua 0 $ texluajit test.lua 0 As you can see from the example, this comes with the additional complication that LuaJIT has Lua 5.1 behaviour and should also retain that. Cheers, Henri