Attached patch adds missing AM_PROG_AR macro - otherwise autoreconf fails:
automake (GNU automake) 1.12.3 Copyright (C) 2012 Free Software Foundation, Inc. License GPLv2+: GNU GPL version 2 or later http://gnu.org/licenses/gpl-2.0.html This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
Written by Tom Tromey tromey@redhat.com and Alexandre Duret-Lutz adl@gnu.org. AUTOV is 1.12 NOTE: Executing autoreconf --verbose --install --force --exclude=autopoint -I /home/hrw/HDD/devel/canonical/aarch64/build/tmp-eglibc/work/aarch64-oe-linux/libdivecomputer-0.0.0-r0/git/m4/ -I/home/hrw/HDD/devel/canonical/aar ch64/build/tmp-eglibc/sysroots/x86_64-linux/usr/share/aclocal-1.12 -I /home/hrw/HDD/devel/canonical/aarch64/build/tmp-eglibc/work/aarch64-oe-linux/libdivecomputer-0.0.0-r0/git/aclocal-copy/ autoreconf: Entering directory `.' autoreconf: configure.ac: not using Gettext autoreconf: running: aclocal -I /home/hrw/HDD/devel/canonical/aarch64/build/tmp-eglibc/work/aarch64-oe-linux/libdivecomputer-0.0.0-r0/git/m4/ -I /home/hrw/HDD/devel/canonical/aarch64/build/tmp-eglibc/sysroots/x86_64-linux/u sr/share/aclocal-1.12 -I /home/hrw/HDD/devel/canonical/aarch64/build/tmp-eglibc/work/aarch64-oe-linux/libdivecomputer-0.0.0-r0/git/aclocal-copy/ -I /home/hrw/HDD/devel/canonical/aarch64/build/tmp-eglibc/work/aarch64-oe-linu x/libdivecomputer-0.0.0-r0/git/m4/ -I /home/hrw/HDD/devel/canonical/aarch64/build/tmp-eglibc/sysroots/x86_64-linux/usr/share/aclocal-1.12 -I /home/hrw/HDD/devel/canonical/aarch64/build/tmp-eglibc/work/aarch64-oe-linux/libdi vecomputer-0.0.0-r0/git/aclocal-copy/ --force -I m4 autoreconf: configure.ac: tracing autoreconf: running: libtoolize --copy --force libtoolize: putting auxiliary files in `.'. libtoolize: copying file `./ltmain.sh' libtoolize: putting macros in AC_CONFIG_MACRO_DIR, `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' autoreconf: running: /home/hrw/HDD/devel/canonical/aarch64/build/tmp-eglibc/sysroots/x86_64-linux/usr/bin/autoconf --include=/home/hrw/HDD/devel/canonical/aarch64/build/tmp-eglibc/work/aarch64-oe-linux/libdivecomputer-0.0.0 -r0/git/m4/ --include=/home/hrw/HDD/devel/canonical/aarch64/build/tmp-eglibc/sysroots/x86_64-linux/usr/share/aclocal-1.12 --include=/home/hrw/HDD/devel/canonical/aarch64/build/tmp-eglibc/work/aarch64-oe-linux/libdivecompute r-0.0.0-r0/git/aclocal-copy/ --force autoreconf: running: /home/hrw/HDD/devel/canonical/aarch64/build/tmp-eglibc/sysroots/x86_64-linux/usr/bin/autoheader --include=/home/hrw/HDD/devel/canonical/aarch64/build/tmp-eglibc/work/aarch64-oe-linux/libdivecomputer-0.0 .0-r0/git/m4/ --include=/home/hrw/HDD/devel/canonical/aarch64/build/tmp-eglibc/sysroots/x86_64-linux/usr/share/aclocal-1.12 --include=/home/hrw/HDD/devel/canonical/aarch64/build/tmp-eglibc/work/aarch64-oe-linux/libdivecompu ter-0.0.0-r0/git/aclocal-copy/ --force autoreconf: running: automake --foreign --add-missing --copy --force-missing automake: warnings are treated as errors /home/hrw/HDD/devel/canonical/aarch64/build/tmp-eglibc/sysroots/x86_64-linux/usr/share/automake-1.12/am/ltlibrary.am: warning: 'libdivecomputer.la': linking libtool libraries using a non-POSIX /home/hrw/HDD/devel/canonical/aarch64/build/tmp-eglibc/sysroots/x86_64-linux/usr/share/automake-1.12/am/ltlibrary.am: archiver requires 'AM_PROG_AR' in 'configure.ac' src/Makefile.am:51: while processing Libtool library 'libdivecomputer.la' autoreconf: automake failed with exit status: