Update versions in build-many-glibcs.py [committed]

[Joseph Myers]

This patch updates build-many-glibcs.py to use the current release
branch of binutils and current releases of GMP and the Linux kernel.

Committed.

2017-07-04  Joseph Myers  <joseph@codesourcery.com>

	* scripts/build-many-glibcs.py (Context.checkout): Default
	binutils version to 2.29 branch, GMP version to 6.1.2 and Linux
	kernel version to 4.12.

diff --git a/scripts/build-many-glibcs.py b/scripts/build-many-glibcs.py
index 1a32c82..6e5ef91 100755
--- a/scripts/build-many-glibcs.py
+++ b/scripts/build-many-glibcs.py
@@ -682,11 +682,11 @@ class Context(object):
 
     def checkout(self, versions):
         """Check out the desired component versions."""
-        default_versions = {'binutils': 'vcs-2.28',
+        default_versions = {'binutils': 'vcs-2.29',
                             'gcc': 'vcs-7',
                             'glibc': 'vcs-mainline',
-                            'gmp': '6.1.1',
-                            'linux': '4.11',
+                            'gmp': '6.1.2',
+                            'linux': '4.12',
                             'mpc': '1.0.3',
                             'mpfr': '3.1.5'}
         use_versions = {}

-- 
Joseph S. Myers
joseph@codesourcery.com