[glibc] Configure GCC with --enable-initfini-array [BZ #27945]

[glibc] Configure GCC with --enable-initfini-array [BZ #27945]

[H.J. Lu]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=a586fe9c80f7cf2c9a5a6ccdbc572e7b5ec816b8

commit a586fe9c80f7cf2c9a5a6ccdbc572e7b5ec816b8
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Wed Jun 9 05:29:16 2021 -0700

    Configure GCC with --enable-initfini-array [BZ #27945]
    
    Starting from GCC 12, the .init_array and .fini_array sections are enabled
    unconditionally by
    
    commit 13a39886940331149173b25d6ebde0850668d8b9
    Author: H.J. Lu <hjl.tools@gmail.com>
    Date:   Tue Jun 8 16:09:24 2021 -0700
    
        Always enable DT_INIT_ARRAY/DT_FINI_ARRAY on Linux
    
    configure GCC with --enable-initfini-array to enable them when using GCC
    release branches.
    
    Fixes BZ #27945.

Diff:
---
 scripts/build-many-glibcs.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/build-many-glibcs.py b/scripts/build-many-glibcs.py
index 30b8abdc58..e8b9b213ca 100755
--- a/scripts/build-many-glibcs.py
+++ b/scripts/build-many-glibcs.py
@@ -1447,6 +1447,7 @@ class Config(object):
         # removed once glibc no longer supports building with older
         # GCC versions).
         cfg_opts = list(self.gcc_cfg)
+        cfg_opts += ['--enable-initfini-array']
         cfg_opts += ['--disable-libssp', '--disable-libcilkrts']
         host_libs = self.ctx.host_libraries_installdir
         cfg_opts += ['--with-gmp=%s' % host_libs,