I was able to work around the EGREP_TRADITIONAL issue by reordering macros. The issue is conditional code blocks which mean EGREP_TRADITIONAL was not set in some configure option combinations leading to obtuse failures. Our testing so far shows the following three sets of issues. Macro ordering issues with EGREP_TRADITIONAL being unset: apr 1.7.2 libarchive 3.6.2 Ship with an older gnulib largefile.m4 which breaks with autoconf 2.72c: parted 3.5 man-db 2.11.2 libpipeline 1.5.7 gzip 1.12 findutils 4.9.0 bison 3.8.2 gettext 0.21.1 coreutils 9.1 wget 1.21.3 On x32 were seeing two recipes which configure "ok" but fail at compile time: gpgme 1.18.0 mpg123 1.31.2 https://autobuilder.yoctoproject.org/typhoon/#/builders/57/builds/6771/steps/11/logs/stdio Now that things are roughly building, we should get some better automated runtime testing results in a few hours. Cheers, Richard