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glibc 2.21 -msse build problem

From: Vyacheslav Barinov <v dot barinov at samsung dot com>
To: libc-help at sourceware dot org
Date: Thu, 12 Feb 2015 10:05:04 +0300
Subject: glibc 2.21 -msse build problem
Authentication-results: sourceware.org; auth=none

Hello,

  I tried to build glibc 2.21 with '-msse4.2' compilation flag.
  But sse is switched off explicitly for dl-runtime and as -Werror is now switched on by default I
  get build failure:

   cc1: all warnings being treated as errors
   dl-runtime.c:1:0: error: SSE instruction set disabled, using 387 arithmetics [-Werror]

  Adding -Wno-error right after -mno-sse fixes the problem, but I'm not sure this is the right way.

Best Regards,
Vyacheslav Barinov

P. S.
I created a bug https://sourceware.org/bugzilla/show_bug.cgi?id=17950

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