svn commit: r427110 - head/lang/gcc/files [does lang/gcc49 need such too?]

[Mark Millard]

> Author: dim (src committer)
> Date: Fri Nov 25 12:54:01 2016
> New Revision: 427110
> URL: 
> https://svnweb.freebsd.org/changeset/ports/427110
> 
> 
> Log:
>   Fix build of lang/gcc with libc++ 3.9.0, similar to r421625:
> . . .
>   What is happening here, is that the source file includes gcc/system.h,
>   which defines abort to fancy_abort, and then the source file includes
>   <new>, which attempts to call _VSTD::abort() (the _VSTD is a libc++
>   alias for std::).  The macro definition then causes the above breakage.
>   
>   Newer gcc ports, such as gcc5 and gcc6 don't show this issue, because
>   upstream gcc first added an include of <algorithm> (which indirectly
>   includes <new>) in r217348 [1], and later even add a direct include of
>   <new> in r232736 [2].
>   
>   Fix it for this version, by adding the direct include of <new> to
>   gcc/system.h.  This makes the 'second' includes of <new> in some .c
>   files superfluous, but at least they won't result in errors.

Will lang/gcc49 needs similar changes?

(I normally only use explicitly version numbered lang/gcc* 's and
I use lang/gcc49 on powerpc64's.)


===
Mark Millard
markmi at dsl-only.net