[Bug libc/17841] Build failure if compiler defaults to PIE

[cvs-commit at gcc dot gnu.org]

https://sourceware.org/bugzilla/show_bug.cgi?id=17841

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The branch, hjl/pr17841 has been created
        at  865bdc474cdd2536570afbfd0458538118b12c12 (commit)

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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=865bdc474cdd2536570afbfd0458538118b12c12

commit 865bdc474cdd2536570afbfd0458538118b12c12
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Mon Mar 2 14:53:11 2015 -0800

    Compile archives with -fno-pie

    When compiler defaults to PIE, we compile archives with -fno-pie.   Since
    archives won't be used with PIE, compile them with -fpie isn't necessary.

        [BZ #17841]
        * Makeconfig (no-pie-ccflag): New.  Set to -fno-pie.
        (pic-default): Don't define if $(no-pie-ccflag) is -fno-pie.
        * Makerules (archive-objects): New.  Set before including
        extra-lib.mk.
        ($(archive-objects)): New. New rule to append $(no-pie-ccflag)
        to CFLAGS.
        * extra-lib.mk (archive-objects): New.
        * crypt/Makefile (crypt-suffix): New.
        ($(objpfx)md5test): Replace ".o" with $(crypt-suffix).
        ($(objpfx)md5test-giant): Likewise.
        ($(objpfx)sha256test): Likewise.
        ($(objpfx)sha512test): Likewise.

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=618fc355734a330c883eb0287cf7ea48107de19a

commit 618fc355734a330c883eb0287cf7ea48107de19a
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Wed Jan 14 06:29:04 2015 -0800

    Support compilers defaulting to PIE

    If PIE is the default, we need to build programs as PIE.

        [BZ #17841]
        * Makeconfig (+link): Set to $(+link-pie) if default to PIE.
        (+link-tests): Set to $(+link-pie-tests) if default to PIE.
        * config.make.in (build-pie-default): New.
        * configure.ac (libc_cv_pie_default): New.  Set to yes if -fPIE
        is default.  AC_SUBST.
        * configure: Regenerated.

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