Created attachment 984 [details] configure log ... | configure.ac:27: error: possibly undefined macro: AS_IF | If this token and others are legitimate, please use m4_pattern_allow. | See the Autoconf documentation. | configure.ac:100: error: possibly undefined macro: AC_MSG_ERROR ... full log attached.
A little more details would be helpful, like what git commit of master, which version of autoconf, arch building? As you know we build world frequently on the Autobuilder and kconfig-frontends built over the weekend on the autobuilder.
It was the HEAD of December 16; and the weird thing is that Martin had the same issue and a cleansstate fixed the issue for both of us. Maybe a reentrance issue?
I tried to run it twice via the bitbake -f -c configure and could not reproduce this issue, I am going to close this for now, if you can give me a reproducer then please reopen this bug.