Hi, I'm trying to build mailutils under Alpine Linux:
$ docker run --rm -it alpine:3.20 / # apk add git libtool autoconf automake wget rsync gettext-dev coreutils build-base perl perl-pod-parser bison flex gawk / # git clone git://git.savannah.gnu.org/mailutils.git / # cd mailutils /mailutils # ./bootstrap ... configure.ac:99: error: possibly undefined macro: AC_DEFINE If this token and others are legitimate, please use m4_pattern_allow. See the Autoconf documentation. autoreconf: error: /usr/bin/autoconf failed with exit status: 1 ./bootstrap: autoreconf failed As far as I can see AC_DEFINE is available: /mailutils # rg m4_define\\\(\\[AC_DEFINE\\] /usr/share/autoconf/autoconf/general.m4 2317:m4_define([AC_DEFINE], [_AC_DEFINE_Q([_$0], $@)]) What am I missing? Regards, Yuri