{
    This file is part of the Free Pascal run time library.
    Copyright (c) 1999-2004 by the Free Pascal development team

    Implement OS-dependent part of dynamic library loading.

    See the file COPYING.FPC, included in this distribution,
    for details about the copyright.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

 **********************************************************************}

uses libc;

Function SysLoadLibraryA(const Name : RawByteString) : TLibHandle;

begin
  Result:=dlopen(PAnsiChar(Name),RTLD_LAZY);
end;

Function SysLoadLibraryU(const Name: UnicodeString) : TLibHandle;

begin
  Result:=SysLoadLibraryA(ToSingleByteFileSystemEncodedFileName(Name));
end;

Function SysGetProcedureAddress(Lib : TLibHandle; const ProcName : AnsiString) : Pointer;

begin
  Result:=dlsym(lib,PAnsiChar(ProcName));
end;

Function SysUnloadLibrary(Lib : TLibHandle) : Boolean;

begin
  Result:=dlClose(Lib)=0;
end;

Function SysGetLoadErrorStr: AnsiString;

begin  
  Result:='';
end;

const
  SysDynLibsManager: TDynLibsManager = (
    LoadLibraryU: @SysLoadLibraryU;
    LoadLibraryA: @SysLoadLibraryA;
    GetProcAddress: @SysGetProcedureAddress;
    GetProcAddressOrdinal: Nil;
    UnloadLibrary: @SysUnloadLibrary;
    GetLoadErrorStr: @SysGetLoadErrorStr;
  );

procedure InitDynLibs;
begin
  SetDynLibsManager(SysDynLibsManager);
end;