more changes requested

[mjscod@... (Mark Junker)]

Hi,

I forgot to mention more change requests:

1. Please put the "extern "C" { ... }" stuff around all declarations in your  
header file

However, this is not critical but it's more readable when this "extern" stuff  
will be moved from the C++ source files to the lua header files.

2. #define alias for_define should be changed

There are many defines in the lua header files that have an alias of the  
following form:

------------------------------- snip --------------------------------
int whatever(int arg1, void *data);

#define shortcut1(arg1) whatever(arg1,NULL)

#define shortcut1_alias shortcut1
------------------------------- snip --------------------------------

However, some preprocessors cannot handle this correctly. What happens is the  
following:

------------------------------- snip --------------------------------
shortcut1_alias(1);
------------------------------- snip --------------------------------

... will be translated to ...

------------------------------- snip --------------------------------
shortcut1(1);
------------------------------- snip --------------------------------

The function shortcut1 doesn't exist and it produces a link error.
However, a work-around for that is to define the shortcut1_alias as follows:

------------------------------- snip --------------------------------
#define shortcut1_alias(arg1) shortcut1(arg1)
------------------------------- snip --------------------------------

Best regards,
Mark Junker