gnupic: Using readline 4.2 with c++
Subject:
Re: Using readline 4.2 with c++
From:
Chet Ramey ####@####.####
Date:
5 Sep 2001 15:52:28 -0000
Message-Id: <010905154922.AA36306.SM@nike.ins.cwru.edu>
> I'm having trouble building a package written in c++ (gpsim, a PIC emulat=
> or)
> which uses readline. The problem can be demonstrated by just handing c++=
> a
> 1 line file containing the #include:
>
> #include <readline/readline.h>
>
> The result is:
>
> In file included from /usr/include/readline/keymaps.h:37,
> from /usr/include/readline/readline.h:36,
> from try.c:1:
> /usr/include/readline/rltypedefs.h:48: invalid exception specifications
> /usr/include/readline/rltypedefs.h:51: invalid exception specifications
> /usr/include/readline/rltypedefs.h:52: invalid exception specifications
> etc
>
> This is exactly the same error as I get when trying to compile gpsim.
The problem is with readline's use of the __P macro to write prototyped
function definitions and typedefs. The GNU C library uses that macro,
too, and in such a way that it breaks readline's typedef declarations.
The next release of readline will no longer use __P.
In the meantime, you should be able to work around the problem by adding
the following lines to rlstdc.h, just after the `#define _RL_STDC_H':
#ifdef __P
# undef __P
#endif
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
( ``Discere est Dolere'' -- chet)
Chet Ramey, CWRU ####@####.#### http://cnswww.cns.cwru.edu/~chet/
