[Bug libc/18694] sparc sigaction change for glibc-2.20 broke ABI for sparc32

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https://sourceware.org/bugzilla/show_bug.cgi?id=18694

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=1c416311f5d92922788c1bef42de5b9ccd812bac

commit 1c416311f5d92922788c1bef42de5b9ccd812bac
Author: Mike Frysinger <vapier@gentoo.org>
Date:   Mon Jul 20 07:29:15 2015 -0400

    sparc: fix sigaction for 32bit builds [BZ #18694]

    Commit a059d359d86130b5fa74e04a978c8523a0293f77 changed the sigaction
    struct to pass conform tests, but it ended up also changing the ABI for
    32 bit builds.  For 64 bit builds, changing the long to two ints works,
    but for 32 bit builds, it inserts 4 extra bytes.  This leads to many
    packages randomly failing like bash that spews things like:
        configure: line 471: wait_for: No record of process 0

    Bracket the new member by a wordsize check to fix the ABI for 32bit.

    (cherry picked from commit 7fde904c73c57faea48c9679bbdc0932d81b3a2f)
    (cherry picked from commit d679497db20c23e3aaaa150821ce9134cc666a18)

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

Summary of changes:
 sysdeps/unix/sysv/linux/sparc/bits/sigaction.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

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