explicit macro to control use of _longjmp
diff --git a/luaconf.h b/luaconf.h
index f6721b1..d22751e 100644
--- a/luaconf.h
+++ b/luaconf.h
@@ -1,5 +1,5 @@
/*
-** $Id: luaconf.h,v 1.63 2005/09/02 19:53:25 roberto Exp roberto $
+** $Id: luaconf.h,v 1.64 2005/09/06 17:21:03 roberto Exp roberto $
** Configuration file for Lua
** See Copyright Notice in lua.h
*/
@@ -235,7 +235,7 @@
** CHANGE them if you want to improve this functionality (e.g., by using
** GNU readline and history facilities).
*/
-#if !defined(LUA_ANSI) && defined(LUA_USE_READLINE)
+#if defined(LUA_USE_READLINE)
#include <stdio.h>
#include <readline/readline.h>
#include <readline/history.h>
@@ -554,8 +554,8 @@
** CHANGE them if you prefer to use longjmp/setjmp even with C++
** or if want/don't to use _longjmp/_setjmp instead of regular
** longjmp/setjmp. By default, Lua handles errors with exceptions when
-** compiling as C++ code, with _longjmp/_setjmp when compiling as C code
-** in some Unix systems, and with longjmp/setjmp otherwise.
+** compiling as C++ code, with _longjmp/_setjmp when asked to use them,
+** and with longjmp/setjmp otherwise.
*/
#if defined(__cplusplus)
/* C++ exceptions */
@@ -564,7 +564,7 @@
{ if ((c)->status == 0) (c)->status = -1; }
#define luai_jmpbuf int /* dummy variable */
-#elif !defined(LUA_ANSI) && (defined(__GLIBC__))
+#elif defined(LUA_USE_ULONGJMP)
/* in Unix, try _longjmp/_setjmp (more efficient) */
#define LUAI_THROW(L,c) _longjmp((c)->b, 1)
#define LUAI_TRY(L,c,a) if (_setjmp((c)->b) == 0) { a }
