[lfs-support] Glibc-2.17 errors at LFS 7.3

Linux From Scratch - Version 7.3 Chapter 6. Installing Basic System Software - 6.9. Glibc-2.17 at Ubuntu LTS 12.04 Based on this words on LFS 7.3 Book (Generally a few tests do not pass, but you can generally ignore any of the test failures listed below. Now test the build results:) can I ignore

[lfs-support] GCC tests error

Hi, I tried to install gcc at the chapter 6. After the command: make -k check, I got this error: === libitm Summary === # of expected passes26 # of expected failures3 # of unsupported tests1 make[4]: Leaving directory `/sources/gcc-build/x86_64-unknown-linux-gnu/libitm/