[Bug c/85850] [9.0 Regression] gcc 9.0 doesn't compile with Xcode 9.3.1

[juergen.reuter at desy dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85850

--- Comment #4 from Jürgen Reuter <juergen.reuter at desy dot de> ---
Sorry, I meant Marc, of course. Confused this was another PR.


(In reply to Jürgen Reuter from comment #3)
> Indeed, Janne is correct, this change in libcpp/system.h solves the problem,
> i.e. moving the <new> definition up:
> # diff -u system.h system.h.260425 
> --- system.h	2018-05-20 23:00:01.000000000 +0200
> +++ system.h.260425	2018-05-20 22:55:27.000000000 +0200
> @@ -370,10 +370,6 @@
>  #include "libiberty.h"
>  #include "safe-ctype.h"
>  
> -#ifdef __cplusplus
> -#include <new>
> -#endif 
> -
>  /* 1 if we have C99 designated initializers.
>  
>     ??? C99 designated initializers are not supported by most C++
> @@ -442,6 +438,10 @@
>  /* Some compilers do not allow the use of unsigned char in bitfields.  */
>  #define BOOL_BITFIELD unsigned int
>  
> +#ifdef __cplusplus
> +#include <new>
> +#endif
> +
>  /* Poison identifiers we do not want to use.  */
>  #if (GCC_VERSION >= 3000)
>  #undef calloc