Require binutils 2.25 or later to build glibc

[H.J. Lu]

On Tue, Jun 20, 2017 at 1:45 PM, Joseph Myers <joseph@codesourcery.com> wrote:
> This patch implements a requirement of binutils >= 2.25 (up from 2.22)
> to build glibc.  Tests for 2.24 or later on x86_64 and s390 are
> removed.  It was already the case, as indicated by buildbot results,
> that 2.24 was too old for building tests for 32-bit x86 (produced
> internal linker errors linking elf/tst-gnu2-tls1mod.so).  I don't know
> if any configure tests for binutils features are obsolete given the
> increased version requirement.
>
> Tested for x86_64.
>
> 2017-06-20  Joseph Myers  <joseph@codesourcery.com>
>
>         * configure.ac (AS): Require binutils 2.25 or later.
>         (LD): Likewise.
>         * configure: Regenerated.
>         * sysdeps/s390/configure.ac (AS): Remove version check.
>         * sysdeps/s390/configure: Regenerated.
>         * sysdeps/x86_64/configure.ac (AS): Remove version check.
>         * sysdeps/x86_64/configure: Regenerated.
>         * manual/install.texi (Tools for Compilation): Document
>         requirement for binutils 2.25 or later.
>         * INSTALL: Regenerated.
>

> diff --git a/configure.ac b/configure.ac
> index 16e97d3..db1ea40 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -1071,14 +1071,14 @@ AC_PROG_LN_S
>
>  LIBC_PROG_BINUTILS
>
> -# Accept binutils 2.22 or newer.
> +# Accept binutils 2.25 or newer.
>  AC_CHECK_PROG_VER(AS, $AS, --version,
>                   [GNU assembler.* \([0-9]*\.[0-9.]*\)],
> -                 [2.1[0-9][0-9]*|2.2[2-9]*|2.[3-9][0-9]*|[3-9].*|[1-9][0-9]*],
> +                 [2.1[0-9][0-9]*|2.2[5-9]*|2.[3-9][0-9]*|[3-9].*|[1-9][0-9]*],
>                   AS=: critic_missing="$critic_missing as")
>  AC_CHECK_PROG_VER(LD, $LD, --version,
>                   [GNU ld.* \([0-9][0-9]*\.[0-9.]*\)],
> -                 [2.1[0-9][0-9]*|2.2[2-9]*|2.[3-9][0-9]*|[3-9].*|[1-9][0-9]*],
> +                 [2.1[0-9][0-9]*|2.2[5-9]*|2.[3-9][0-9]*|[3-9].*|[1-9][0-9]*],
>                   LD=: critic_missing="$critic_missing ld")
>
>  # These programs are version sensitive.

Should we also allow gold 1.14 or above to build glibc?  After

commit 388b4f1a02f3a801965028bbfcd48d905638b797
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Fri Jun 23 14:38:46 2017 -0700

    Avoid .symver on common symbols [BZ #21666]

    The .symver directive on common symbol just creates a new common symbol,
    not an alias and the newer assembler with the bug fix for

gold 1.14 can build glibc with  a few "make check" errors:

https://sourceware.org/bugzilla/show_bug.cgi?id=21674


-- 
H.J.