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[committed] Update HP-UX builtin predefines

From: John David Anglin <dave dot anglin at bell dot net>
To: GCC Patches <gcc-patches at gcc dot gnu dot org>
Date: Sat, 6 Jun 2015 14:52:11 -0400
Subject: [committed] Update HP-UX builtin predefines
Authentication-results: sourceware.org; auth=none

The trunk was changed recently for a period to build with "gcc -std=c++98".  This caused a build failure
on HP-UX because a non standard HP variant of the nftw function was selected.  The attached change
revises the hpux predefines so this won't happen.  In particular, we now define _XOPEN_SOURCE_EXTENDED
when building with c++.

I also reviewed the existing predefines and added some new ones for c++ and hpux11.31.

Tested on hppa2.0w-hp-hpux11.11 and hppa64-hp-hpux11.11.  Committed to trunk and gcc-5 branch.

Dave
--
John David Anglin	dave.anglin@bell.net

Attachment: hpux-predef.d.txt
Description: Text document

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