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new scheme to control `loadlib' configuration (default for dlopen 

implementation is not to include it)
This commit is contained in:
Roberto Ierusalimschy 2003-04-07 17:11:53 -03:00
parent d1df829f8d
commit de57dc2653
2 changed files with 60 additions and 22 deletions
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78
loadlib.c
View File

@ -1,5 +1,5 @@
/*
** $Id: loadlib.c,v 1.2 2003/03/18 12:25:01 roberto Exp roberto $
** $Id: loadlib.c,v 1.3 2003/04/02 13:09:14 roberto Exp roberto $
** Dynamic library loader for Lua
** See Copyright Notice in lua.h
*
@ -30,17 +30,11 @@
#include "lauxlib.h"
#include "lualib.h"
#ifndef USE_LOADLIB
#define USE_LOADLIB 1
#endif
#ifndef USE_DLOPEN
#define USE_DLOPEN 0
#endif
#undef LOADLIB
#if USE_LOADLIB
#if defined(linux) || defined(sun) || defined(sgi) || defined(BSD) || USE_DLOPEN
#ifdef USE_DLOPEN
#define LOADLIB
/*
* This is an implementation of loadlib based on the dlfcn interface.
@ -66,6 +60,7 @@ static int loadlib(lua_State *L)
return 1;
}
}
/* else return appropriate error messages */
lua_pushnil(L);
lua_pushstring(L,dlerror());
lua_pushstring(L,(lib!=NULL) ? "init" : "open");
@ -73,7 +68,23 @@ static int loadlib(lua_State *L)
return 3;
}
#elif defined(_WIN32) || defined(__WIN32__) || defined(WIN32)
#endif
/*
** In Windows, default is to use dll; otherwise, default is not to use dll
*/
#ifndef USE_DLL
#ifdef _WIN32
#define USE_DLL 1
#else
#define USE_DLL 0
#endif
#endif
#if USE_DLL
#define LOADLIB
/*
* This is an implementation of loadlib for Windows using native functions.
@ -114,21 +125,48 @@ static int loadlib(lua_State *L)
return 3;
}
#else
/*
* write an implementation for your system here and send it to us, together
* with preprocessing symbols that identify your system.
*/
#endif
#endif
#ifndef LOADLIB
/* Fallback for other systems */
/*
** Those systems support dlopen, so they should have defined USE_DLOPEN.
** The default (no)implementation gives them a special error message.
*/
#ifdef linux
#define LOADLIB
#endif
#ifdef sun
#define LOADLIB
#endif
#ifdef sgi
#define LOADLIB
#endif
#ifdef BSD
#define LOADLIB
#endif
#ifdef _WIN32
#define LOADLIB
#endif
#ifdef LOADLIB
#undef LOADLIB
#define LOADLIB "`loadlib' not installed (check your Lua configuration)"
#else
#define LOADLIB "`loadlib' not supported"
#endif
static int loadlib(lua_State *L)
{
lua_pushnil(L);
lua_pushliteral(L,"`loadlib' not supported");
lua_pushliteral(L,LOADLIB);
lua_pushliteral(L,"absent");
return 3;
}
@ -141,9 +179,9 @@ LUALIB_API int luaopen_loadlib (lua_State *L)
}
/*
* Here are some links por to available implementations of dlfcn and
* interfaces to other native dynamic loaders on top of which loadlib could
* be implemented. Please send contributions and corrections to us.
* Here are some links to available implementations of dlfcn and
* interfaces to other native dynamic loaders on top of which loadlib
* could be implemented. Please send contributions and corrections to us.
*
* AIX
* Starting with AIX 4.2, dlfcn is included in the base OS.

4
makefile
View File

@ -1,5 +1,5 @@
#
## $Id: makefile,v 1.39 2002/12/06 17:20:45 roberto Exp roberto $
## $Id: makefile,v 1.40 2003/03/19 21:27:30 roberto Exp roberto $
## Makefile
## See Copyright Notice in lua.h
#
@ -14,7 +14,7 @@ OPTIMIZE = -O2 \
# -fomit-frame-pointer
CONFIG = $(DEBUG) $(OPTIMIZE) -DLUA_COMPATUPSYNTAX -DUSE_TMPNAME
CONFIG = $(DEBUG) $(OPTIMIZE) -DLUA_COMPATUPSYNTAX -DUSE_TMPNAME -DUSE_DLOPEN
# Compilation parameters