commit acb55dcb892d4321ada6fd9b663b28fada432682
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Wed Jan 2 18:35:50 2019 +0000

    Update Linux kernel version in tst-mman-consts.py.
    
    This patch updates the Linux kernel version in tst-mman-consts.py to
    4.20 (meaning that's the version for which glibc is expected to have
    the same constants as the kernel, up to the exceptions listed in the
    test).  (Once we have more such tests sharing common infrastructure, I
    expect the kernel version will be something set in the infrastructure
    shared by all such tests, rather than something needing updating
    separately for each test for each new kernel version.)
    
    Tested with build-many-glibcs.py.
    
            * sysdeps/unix/sysv/linux/tst-mman-consts.py (main): Expect
            constants to match with Linux 4.20.

diff --git a/sysdeps/unix/sysv/linux/tst-mman-consts.py b/sysdeps/unix/sysv/linux/tst-mman-consts.py
index 1a613beec0da16fb..4a2ddd49c4c7282b 100644
--- a/sysdeps/unix/sysv/linux/tst-mman-consts.py
+++ b/sysdeps/unix/sysv/linux/tst-mman-consts.py
@@ -41,7 +41,7 @@ def main():
                         help='C compiler (including options) to use')
     args = parser.parse_args()
     linux_version_headers = linux_kernel_version(args.cc)
-    linux_version_glibc = (4, 19)
+    linux_version_glibc = (4, 20)
     sys.exit(glibcextract.compare_macro_consts(
         '#define _GNU_SOURCE 1\n'
         '#include <sys/mman.h>\n',