[Bug libstdc++/71856] [6/7 Regression] _GLIBCXX_DEBUG-mode breaks GNU parallel extension

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71856

Jonathan Wakely <redi at gcc dot gnu.org> changed:

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

--- Comment #9 from Jonathan Wakely <redi at gcc dot gnu.org> ---
This isn't properly fixed, parallel mode unconditionally enables assertions, so
this doesn't compile:

#define _GLIBCXX_PARALLEL 1
#include <complex>

int main()
{
  __glibcxx_assert( invalid expression );
}

The problem is in <bits/c++config.h>

// Assert.
#if !defined(_GLIBCXX_ASSERTIONS) && !defined(_GLIBCXX_PARALLEL)
# define __glibcxx_assert(_Condition)
#else