Compilation errors on macosx

[iguberman-ubnt]

I have lua 5.2 installed on a mac. git-cloned fleece-lite. Run 'make macosx' from fleece dir.
Get these errors:
(cd src && /Applications/Xcode.app/Contents/Developer/usr/bin/make macosx)
gcc -Wall -bundle -undefined dynamic_lookup -I../include -o fleece.so fleece.c
In file included from fleece.c:33:
In file included from ../include/lobject.h:15:
../include/llimits.h:18:9: error: unknown type name 'LUAI_UINT32'
typedef LUAI_UINT32 lu_int32;
^
../include/llimits.h:47:9: error: unknown type name 'LUAI_USER_ALIGNMENT_T'
typedef LUAI_USER_ALIGNMENT_T L_Umaxalign;
^
In file included from fleece.c:33:
../include/lobject.h:365:1: error: unknown type name 'LUAI_DATA'
LUAI_DATA const TValue luaO_nilobject_;
^
../include/lobject.h:365:11: error: expected identifier or '('
LUAI_DATA const TValue luaO_nilobject_;
^
In file included from fleece.c:36:
/usr/local/include/lauxlib.h:46:25: error: function cannot return function type 'int (lua_State _, int)'
LUALIB_API lua_Unsigned (luaL_checkunsigned) (lua_State *L, int numArg);
^
/usr/local/include/lauxlib.h:46:26: error: a parameter list without types is only allowed in a function definition
LUALIB_API lua_Unsigned (luaL_checkunsigned) (lua_State *L, int numArg);
^
/usr/local/include/lauxlib.h:48:45: error: unknown type name 'lua_Unsigned'; did you mean 'unsigned'?
lua_Unsigned def);
^
/usr/local/include/lauxlib.h:47:25: error: function cannot return function type 'int (lua_State *, int, unsigned int)'
LUALIB_API lua_Unsigned (luaL_optunsigned) (lua_State *L, int numArg,
^
/usr/local/include/lauxlib.h:47:26: error: a parameter list without types is only allowed in a function definition
LUALIB_API lua_Unsigned (luaL_optunsigned) (lua_State *L, int numArg,
^
In file included from fleece.c:38:
In file included from ../include/ldebug.h:11:
In file included from ../include/lstate.h:13:
../include/ltm.h:46:1: error: unknown type name 'LUAI_DATA'
LUAI_DATA const char *const luaT_typenames[];
^
../include/ltm.h:46:11: error: expected identifier or '('
LUAI_DATA const char *const luaT_typenames[];
^
In file included from fleece.c:45:
In file included from ./fleece-intern.h:35:
./fleece-buffers.h:187:57: warning: duplicate 'const' declaration specifier [-Wduplicate-decl-specifier]
inline void add_fix_part(string_part *_last, const char const add, size_t len, size_t *total_len,
^
In file included from fleece.c:52:
./fleece-numbers.c:316:13: warning: duplicate 'const' declaration specifier [-Wduplicate-decl-specifier]
const char const *g = (const char const *)f;
^
./fleece-numbers.c:316:36: warning: duplicate 'const' declaration specifier [-Wduplicate-decl-specifier]
const char const *g = (const char const *)f;
^
./fleece-numbers.c:318:27: warning: duplicate 'const' declaration specifier [-Wduplicate-decl-specifier]
if(strstr(g, (const char const *)&x) != 0)
^
In file included from fleece.c:55:
./fleece-lua.c:57:2: warning: implicit declaration of function 'luaL_register' is invalid in C99 [-Wimplicit-function-declaration]
luaL_register(L, "fleece", fleece); / registering the module */
^
./fleece-lua.c:191:5: warning: implicit declaration of function 'luai_apicheck' is invalid in C99 [-Wimplicit-function-declaration]
api_check(L, idx <= L->ci->top - L->base);
^
../include/llimits.h:64:20: note: expanded from macro 'api_check'

define api_check luai_apicheck

                            ^

In file included from fleece.c:55:
./fleece-lua.c:192:44: error: use of undeclared identifier 'luaO_nilobject_'
if (o >= L->top) return cast(TValue *, luaO_nilobject);
^
../include/lobject.h:363:27: note: expanded from macro 'luaO_nilobject'

define luaO_nilobject (&luaO_nilobject_)

                              ^

../include/llimits.h:75:27: note: expanded from macro 'cast'

define cast(t, exp) ((t)(exp))

                         ^

In file included from fleece.c:55:
./fleece-lua.c:212:34: error: use of undeclared identifier 'luaO_nilobject_'
: cast(TValue *, luaO_nilobject);
^
../include/lobject.h:363:27: note: expanded from macro 'luaO_nilobject'

define luaO_nilobject (&luaO_nilobject_)

                              ^

../include/llimits.h:75:27: note: expanded from macro 'cast'

define cast(t, exp) ((t)(exp))

                         ^

6 warnings and 13 errors generated.
make[1]: *** [macosx] Error 1
make: *** [macosx] Error 2