VLC @2.1.5: build fails with lua 5.3

[ballen4705]

:info:build demux.c:61:13: error: implicit declaration of function 'luaL_checkint' is invalid in C99 [-Werror,-Wimplicit-function-declaration]

{{{
:info:build     int n = luaL_checkint( L, 1 );
:info:build             ^
:info:build libs/configuration.c:87:46: error: implicit declaration of function 'luaL_checkint' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
:info:build             config_PutInt( p_this, psz_name, luaL_checkint( L, 2 ) );
:info:build                                              ^
:info:build ../../include/vlc_configuration.h:143:60: note: expanded from macro 'config_PutInt'
:info:build #define config_PutInt(a,b,c) config_PutInt(VLC_OBJECT(a),b,c)

}}}

I believe all tools are up to date, OSX Yosemite 10.10.5

Let me know if more details are needed and I will provide them.

[ryandesign (Ryan Carsten Schmidt)]

Duplicate of #49022.