Use Linux 5.12 and GCC 11 branch in build-many-glibcs.py.

This patch makes build-many-glibcs.py use Linux 5.12 and GCC 11
branch.

Tested with build-many-glibcs.py (host-libraries, compilers and glibcs
builds).

diff --git a/scripts/build-many-glibcs.py b/scripts/build-many-glibcs.py
index 580d25e..41639f2 100755 (executable)
--- a/scripts/build-many-glibcs.py
+++ b/scripts/build-many-glibcs.py
@@ -766,10 +766,10 @@ class Context(object):
     def checkout(self, versions):
         """Check out the desired component versions."""
         default_versions = {'binutils': 'vcs-2.36',
-                            'gcc': 'vcs-10',
+                            'gcc': 'vcs-11',
                             'glibc': 'vcs-mainline',
                             'gmp': '6.2.1',
-                            'linux': '5.11',
+                            'linux': '5.12',
                             'mpc': '1.2.1',
                             'mpfr': '4.1.0',
                             'mig': 'vcs-mainline',