[Bug libc/20662] checking whether x86_64-pc-linux-gnu-gcc implicitly enables -fstack-protector no (32bit gcc 6.2.0 pie and ssp enable)

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https://sourceware.org/bugzilla/show_bug.cgi?id=20662

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=caafe2b2612be88046d7bad4da42dbc2b07fbcd7

commit caafe2b2612be88046d7bad4da42dbc2b07fbcd7
Author: Denis Kaganovich <mahatma@eu.by>
Date:   Thu Oct 20 22:01:39 2016 +0200

    configure: accept __stack_chk_fail_local for ssp support too [BZ #20662]

    When glibc is compiled with gcc 6.2 that has been configured with
    --enable-default-pie and --enable-default-ssp, the configure script
    fails to detect that the compiler has ssp turned on by default when
    being built for i686-linux-gnu.

    This is because gcc is emitting __stack_chk_fail_local but the
    script is only looking for __stack_chk_fail.  Support both.

    Example output:
    checking whether x86_64-pc-linux-gnu-gcc -m32 -Wl,-O1 -Wl,--as-needed
    implicitly enables -fstack-protector... no

    (cherry picked from commit c7409aded44634411a19b0b7178b7faa237835e6)
    (cherry picked from commit 2bdb3d2ee19a6ac61da0a398b10db380e9c92959)

-----------------------------------------------------------------------

Summary of changes:
 configure    |    8 +++++---
 configure.ac |    8 +++++---
 2 files changed, 10 insertions(+), 6 deletions(-)

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