Errata for the 12.2-systemd Version of the LFS Book

Known Security Vulnerabilities

• Read the security advisories page.

Miscellaneous Errata

• In the Glibc upgradation process described in 8.5 Glibc-2.40, if you are upgrading on LFS < 12.0 (where GCC is not configured with the --disable-fixincludes option), you need to remove the so-called "fixed" headers after upgrading Glibc and rebooting, by issuing
  DIR=$(dirname $(gcc -print-libgcc-file-name))
  [ -e $DIR/include/limits.h ] || mv $DIR/include{-fixed,}/limits.h
  [ -e $DIR/include/syslimits.h ] || mv $DIR/include{-fixed,}/syslimits.h
  rm -rfv $(dirname $(gcc -print-libgcc-file-name))/include-fixed/*
  
  as the root user. Otherwise many packages may fail to build.
• We've issued a previous version of the errata above, which is incorrect. If you've already followed the old errata, issue $(dirname $(gcc -print-prog-name=cc1))/install-tools/mkheaders as the root user to regenerate the limits.h and syslimits.h files, then follow the new errata.