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From: Nasser Abbasi <nma@12000.org>
Newsgroups: comp.lang.ada
Subject: Re: C2Ada port to linux updated.
Date: Tue, 14 Aug 2007 19:14:37 -0700
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Date: 2007-08-14T19:14:37-07:00
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On Aug 14, 5:01 pm, Keith Thompson <ks...@mib.org> wrote:
> Keith Thompson <ks...@mib.org> writes:
> > "Nasser Abbasi" <n...@12000.org> writes:
> > [...]
> >> It took me a day to make it compile/run on Linux. The main problem was with
> >> using _Bool. They added _Bool data type in C99, for some reason ( I am no
> >> gcc expert), the current gcc 4.1 compiler does not have <stdbool.h> and it
> >> does not know about _Bool, and _Bool is used in many places in the code.
> > [...]
>
> > Perhaps you just need to update your gcc.  gcc 4.1.1 does support
> > <stdbool.h> and _Bool.
>
> That's odd.  I just tried a small test program, and gcc versions 3.2
> and 4.0.0 also support <stdbool.h> and _Bool.
>
> Here's the test case:
>
> #include <stdbool.h>
> _Bool obj1;
> bool obj2;
>
> Save it as, say, "foo.c", feed it to "gcc -c", and see what happens.
> Perhaps your gcc is configured and/or installed incorrectly.
>
> --
> Keith Thompson (The_Other_Keith) ks...@mib.org  <http://www.ghoti.net/~kst>
> San Diego Supercomputer Center             <*>  <http://users.sdsc.edu/~kst>
> "We must do something.  This is something.  Therefore, we must do this."
>     -- Antony Jay and Jonathan Lynn, "Yes Minister"

hi Ken;

Yes, the above works, but the c2ada uses typedefs and it includes
_Bool in there, and that is where the problem occur.

I've just reduced this problem to this simple example to help
illustrate it:

gcc -c il.h
il.h:5: error: expected identifier before '_Bool'


$ cat il.h

#include <stdbool.h>

typedef enum {
        _Bool,    /* cvt to Boolean, Ada only, unary */
        _UnBool,  /* cvt bool->int,  Ada only, unary */
} node_kind_t;

$ gcc -c -std=c99 il.h
il.h:5: error: expected identifier before '_Bool'
$ gcc -c -ansi il.h
il.h:5: error: expected identifier before '_Bool'
$ gcc -c -std=gnu89 il.h
il.h:5: error: expected identifier before '_Bool'

nabbasi@my-desktop:~/try$ gcc --version
gcc (GCC) 4.1.3 20070403 for GNAT GPL 2007 (20070402)

Could you please try the above on your system? may be my gcc
installation is bad.
I am using Ubuntu

nabbasi@my-desktop:~/try$ uname -a
Linux my-desktop 2.6.20-15-generic #2 SMP Sun Apr 15 07:36:31 UTC 2007
i686 GNU/Linux


Nasser