[glibc] Update build-many-glibcs.py for binutils ia64 obsoletion.

[Joseph Myers <jsm28@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=23a7896d065a99057c06a1bd22c2bbee175b0ae4

commit 23a7896d065a99057c06a1bd22c2bbee175b0ae4
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Thu Aug 13 18:51:10 2020 +0000

    Update build-many-glibcs.py for binutils ia64 obsoletion.
    
    Since binutils has obsoleted ia64 support, use --enable-obsolete for
    now when configuring binutils for ia64 in build-many-glibcs.py (which
    requires adding support for architecture-specific binutils configure
    options there).  As with other obsoletions, the removal of support for
    ia64 in any of (binutils, GCC, Linux kernel) should imply its removal
    from glibc.
    
    Tested with build-many-glibcs.py for ia64-linux-gnu (compilers and
    glibcs build).

Diff:
---
 scripts/build-many-glibcs.py | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/scripts/build-many-glibcs.py b/scripts/build-many-glibcs.py
index 325591b2c6..3bd5fd795e 100755
--- a/scripts/build-many-glibcs.py
+++ b/scripts/build-many-glibcs.py
@@ -212,7 +212,8 @@ class Context(object):
                         os_name='gnu')
         self.add_config(arch='ia64',
                         os_name='linux-gnu',
-                        first_gcc_cfg=['--with-system-libunwind'])
+                        first_gcc_cfg=['--with-system-libunwind'],
+                        binutils_cfg=['--enable-obsolete'])
         self.add_config(arch='m68k',
                         os_name='linux-gnu',
                         gcc_cfg=['--disable-multilib'])
@@ -1264,7 +1265,8 @@ class Config(object):
     """A configuration for building a compiler and associated libraries."""
 
     def __init__(self, ctx, arch, os_name, variant=None, gcc_cfg=None,
-                 first_gcc_cfg=None, glibcs=None, extra_glibcs=None):
+                 first_gcc_cfg=None, binutils_cfg=None, glibcs=None,
+                 extra_glibcs=None):
         """Initialize a Config object."""
         self.ctx = ctx
         self.arch = arch
@@ -1283,6 +1285,10 @@ class Config(object):
             self.first_gcc_cfg = []
         else:
             self.first_gcc_cfg = first_gcc_cfg
+        if binutils_cfg is None:
+            self.binutils_cfg = []
+        else:
+            self.binutils_cfg = binutils_cfg
         if glibcs is None:
             glibcs = [{'variant': variant}]
         if extra_glibcs is None:
@@ -1316,7 +1322,7 @@ class Config(object):
                                '--disable-gdbserver',
                                '--disable-libdecnumber',
                                '--disable-readline',
-                               '--disable-sim'])
+                               '--disable-sim'] + self.binutils_cfg)
         if self.os.startswith('linux'):
             install_linux_headers(LinuxHeadersPolicyForBuild(self), cmdlist)
         self.build_gcc(cmdlist, True)