https://issues.dlang.org/show_bug.cgi?id=24297

Walter Bright <bugzilla@digitalmars.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bugzilla@digitalmars.com

--- Comment #1 from Walter Bright <bugzilla@digitalmars.com> ---
The usual way to handle these sorts of extensions is to make macros for them that expand to nothing, and put those macros in druntime/src/importc.h.

However, this bug report has insufficient information in it to do that, though I suspect that an:

    #undef _FORTIFY_SOURCE

might work?

--

https://issues.dlang.org/show_bug.cgi?id=24297

--- Comment #2 from Vladimir Panteleev <dlang-bugzilla@thecybershadow.net> ---
> However, this bug report has insufficient information in it to do that

Why do you say that? This problem should be reproducible on any GNU/Linux machine without additional setup.

What information is missing?

> though I suspect that an:
> 
>     #undef _FORTIFY_SOURCE
> 
> might work?

Ah, certainly, that works! Not worth fixing whatever things get expanded to?

--

https://issues.dlang.org/show_bug.cgi?id=24297

--- Comment #3 from Vladimir Panteleev <dlang-bugzilla@thecybershadow.net> ---
Here is the preprocessed code:

# 194 "/usr/include/bits/stdio2.h" 3 4
extern
# 194 "/usr/include/bits/stdio2.h"
inline
# 194 "/usr/include/bits/stdio2.h" 3 4
__attribute__ ((__always_inline__)) __attribute__ ((__gnu_inline__))
__attribute__ ((__artificial__)) __attribute__ ((__warn_unused_result__))
__attribute__ ((__access__ (__write_only__, 1, 2))) char *
fgets (char * __s, int __n, FILE * __stream)
{
  size_t sz = __builtin_object_size (__s, 1 > 1);
  if (((__builtin_constant_p (sz) && (sz) == (long unsigned int) -1) ||
(((__typeof (__n)) 0 < (__typeof (__n)) -1 || (__builtin_constant_p (__n) &&
(__n) > 0)) && __builtin_constant_p ((((long unsigned int) (__n)) <= ((sz)) /
((sizeof (char))))) && (((long unsigned int) (__n)) <= ((sz)) / ((sizeof
(char)))))))
    return __fgets_alias (__s, __n, __stream);
  if ((((__typeof (__n)) 0 < (__typeof (__n)) -1 || (__builtin_constant_p (__n)
&& (__n) > 0)) && __builtin_constant_p ((((long unsigned int) (__n)) <= (sz) /
(sizeof (char)))) && !(((long unsigned int) (__n)) <= (sz) / (sizeof (char)))))
    return __fgets_chk_warn (__s, sz, __n, __stream);
  return __fgets_chk (__s, sz, __n, __stream);
}

--

https://issues.dlang.org/show_bug.cgi?id=24297

--- Comment #4 from Vladimir Panteleev <dlang-bugzilla@thecybershadow.net> ---
Reduced:

#include <stdio.h>

int foo()
{
        int __n;
        return ((__typeof (__n)) 0 );
}

Maybe just needs a #define __typeof typeof?

--

https://issues.dlang.org/show_bug.cgi?id=24297

Dlang Bot <dlang-bot@dlang.rocks> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |pull

--- Comment #5 from Dlang Bot <dlang-bot@dlang.rocks> ---
@WalterBright created dlang/dmd pull request #15957 "fix Issue 24297 - ImportC incompatible with glibc _FORTIFY_SOURCE" fixing this issue:

- fix Issue 24297 - ImportC incompatible with glibc _FORTIFY_SOURCE

https://github.com/dlang/dmd/pull/15957

--

https://issues.dlang.org/show_bug.cgi?id=24297

Dlang Bot <dlang-bot@dlang.rocks> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #6 from Dlang Bot <dlang-bot@dlang.rocks> ---
dlang/dmd pull request #15957 "fix Issue 24297 - ImportC incompatible with glibc _FORTIFY_SOURCE" was merged into master:

- 7ce929a02cd315abd8f0e420327625164a9c0c97 by Walter Bright:
  fix Issue 24297 - ImportC incompatible with glibc _FORTIFY_SOURCE

https://github.com/dlang/dmd/pull/15957

--