lua-users home
lua-l archive

[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index] [Thread Index]

Antonio Scuri <> wrote:
>   Inspecting the code, I changed the following line:
> void *lib = dlopen(path, RTLD_NOW | (seeglb ? RTLD_GLOBAL : RTLD_LOCAL));
>   to (the same as it was in Lua 5.1):
> void *lib = dlopen(path, RTLD_NOW);
>   Then it works.

dlopen() without an explicit RTLD_GLOBAL or RTLD_LOCAL flag is not
portable. On Mac OS X the default is RTLD_GLOBAL but on many other systems

You need to arrange for the right value in the seeglb parameter. For

  package.loadlib (libname, funcname)

  Dynamically links the host program with the C library libname.

  If funcname is "*", then it only links with the library, making the
  symbols exported by the library available to other dynamically linked
  libraries. Otherwise, it looks for a function funcname inside the
  library and returns this function as a C function. (So, funcname must
  follow the prototype lua_CFunction).

The require() mechanism passes luaopen_<modname> as the function name,
so when loading modules in the usual way the RTLD_LOCAL flag is set.

f.anthony.n.finch  <>
Trafalgar: Variable 3 in northwest, northerly veering northeasterly 4 or 5,
increasing 6 at times in southeast. Moderate or rough. Rain or showers.
Moderate or good.