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update to lua 5.3 rc4

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Cloud Wu
2015-01-07 15:38:34 +08:00
parent 8737531fbe
commit 29822f14bd
8 changed files with 40 additions and 19 deletions
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16
3rd/lua/loadlib.c
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@@ -1,5 +1,5 @@
/*
** $Id: loadlib.c,v 1.123 2014/11/12 13:31:51 roberto Exp $
** $Id: loadlib.c,v 1.124 2015/01/05 13:51:39 roberto Exp $
** Dynamic library loader for Lua
** See Copyright Notice in lua.h
**
@@ -135,6 +135,18 @@ static lua_CFunction lsys_sym (lua_State *L, void *lib, const char *sym);
#include <dlfcn.h>
/*
** Macro to covert pointer to void* to pointer to function. This cast
** is undefined according to ISO C, but POSIX assumes that it must work.
** (The '__extension__' in gnu compilers is only to avoid warnings.)
*/
#if defined(__GNUC__)
#define cast_func(p) (__extension__ (lua_CFunction)(p))
#else
#define cast_func(p) ((lua_CFunction)(p))
#endif
static void lsys_unloadlib (void *lib) {
dlclose(lib);
}
@@ -148,7 +160,7 @@ static void *lsys_load (lua_State *L, const char *path, int seeglb) {
static lua_CFunction lsys_sym (lua_State *L, void *lib, const char *sym) {
lua_CFunction f = (lua_CFunction)dlsym(lib, sym);
lua_CFunction f = cast_func(dlsym(lib, sym));
if (f == NULL) lua_pushstring(L, dlerror());
return f;
}