LUA Scripting - Dynamic Loading
lazarus / 33-macOS - Mac OS X

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wagenheimer · 2011-01-14 00:17

I'm trying to Dinamic Load LUA in MAC-OS.

liblua5.1.dylib

Code: [Select]LuaHandle:= DynLibs.LoadLibrary(ALibName);

  if LuaHandle = NilHandle then
  begin
     Result := False;
     Exit;
  end;

LuaHandle is always returning NilHandle. FileExists(ALibName) returns
true.

I use the same command to load Bass (libbass.dylib) and it works.

Anybody have any idea of what is wrong?

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Phil · 2011-01-14 00:36

Are you specifying the complete path to it? What is the path?

Thanks.

-Phil

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wagenheimer · 2011-01-14 00:50

Yes I am. FileExists(ALibName) is returning True.

There is the Lua.Pas and the liblua5.1.dylib that I'm using.

http://wagenheimer.com/temp/liblua5.1.dylib
http://wagenheimer.com/temp/Lua.pas

I use this same Lua.Pas in Windows and it works.

Please, if you can take a look would be very grateful.

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Phil · 2011-01-14 00:56

No, I meant what's the path to the library?

Try doing ExpandFileName to make sure it's a full path and not a
relative path.

From Lua.pas:

    ALibName:= ExtractFilePath( ParamStr(0) ) + DefaultLibName;

That's probably giving you a relative path on OS X.

Thanks.

-Phil

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wagenheimer · 2011-01-14 01:08

Thanks for the reply,

Well... I have changed it to

Code: [Select]ALibName:=  ExpandFileName(GetCurrentDir() +
'/'+DefaultLibName);

The ALibName value is
'/Developer/Games/Phoenix/demos.freepascal/_Compiled/liblua5.1.dylib'

And the .dylib really exists in this path, but it still does not
works.

What else should I verify?

I will make a project to you test it.

Thanks

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Phil · 2011-01-14 02:08

Where did you obtain liblua5.1.dylib? Or did you build it yourself?

Make sure it's not dependent on other libraries that you don't have:

otool -L liblua5.1.dylib

And compatible with your machine (Intel or PowerPC):

file liblua5.1.dylib

Thanks.

-Phil