>>> libcoap v4.1.2 Extracting gzip -d -c /home/peko/autobuild/instance-1/dl/libcoap-v4.1.2.tar.gz | tar --strip-components=1 -C /home/peko/autobuild/instance-1/output/build/libcoap-v4.1.2 -xf - >>> libcoap v4.1.2 Patching >>> libcoap v4.1.2 Updating config.sub and config.guess for file in config.guess config.sub; do for i in $(find /home/peko/autobuild/instance-1/output/build/libcoap-v4.1.2 -name $file); do cp support/gnuconfig/$file $i; done; done >>> libcoap v4.1.2 Configuring >>> libcoap v4.1.2 Autoreconfiguring libtoolize: putting auxiliary files in '.'. libtoolize: copying file './ltmain.sh' libtoolize: putting macros in AC_CONFIG_MACRO_DIRS, 'm4'. libtoolize: copying file 'm4/libtool.m4' libtoolize: copying file 'm4/ltoptions.m4' libtoolize: copying file 'm4/ltsugar.m4' libtoolize: copying file 'm4/ltversion.m4' libtoolize: copying file 'm4/lt~obsolete.m4' configure.ac:145: error: possibly undefined macro: AC_MSG_WARN If this token and others are legitimate, please use m4_pattern_allow. See the Autoconf documentation. configure.ac:158: error: possibly undefined macro: AC_MSG_ERROR configure.ac:229: error: possibly undefined macro: AC_DEFINE autoreconf: /home/peko/autobuild/instance-1/output/host/bin/autoconf failed with exit status: 1 make: *** [/home/peko/autobuild/instance-1/output/build/libcoap-v4.1.2/.stamp_configured] Error 1 make: Leaving directory `/home/peko/autobuild/instance-1/buildroot'