phase `unpack' succeeded after 0.0 seconds
starting phase `bootstrap'
running './autogen.sh'
patch-shebang: ./autogen.sh: changing `/bin/sh' to `/gnu/store/pwcp239kjf7lnj5i4lkdzcfcxwcfyk72-bash-minimal-5.0.16/bin/sh'
=============== running libtoolize --force --copy
libtoolize: putting auxiliary files in '.'.
libtoolize: copying file './ltmain.sh'
libtoolize: You should add the contents of the following files to 'aclocal.m4':
libtoolize:   '/gnu/store/sn4jq1qqgdxm8mijfid9lywi3rnw5c8k-libtool-2.4.6/share/aclocal/libtool.m4'
libtoolize:   '/gnu/store/sn4jq1qqgdxm8mijfid9lywi3rnw5c8k-libtool-2.4.6/share/aclocal/ltoptions.m4'
libtoolize:   '/gnu/store/sn4jq1qqgdxm8mijfid9lywi3rnw5c8k-libtool-2.4.6/share/aclocal/ltsugar.m4'
libtoolize:   '/gnu/store/sn4jq1qqgdxm8mijfid9lywi3rnw5c8k-libtool-2.4.6/share/aclocal/ltversion.m4'
libtoolize:   '/gnu/store/sn4jq1qqgdxm8mijfid9lywi3rnw5c8k-libtool-2.4.6/share/aclocal/lt~obsolete.m4'
libtoolize: Consider adding 'AC_CONFIG_MACRO_DIRS([m4])' to configure.in,
libtoolize: and rerunning libtoolize and aclocal.
libtoolize: Consider adding '-I m4' to ACLOCAL_AMFLAGS in Makefile.am.
=============== running aclocal
aclocal: warning: autoconf input should be named 'configure.ac', not 'configure.in'
configure.in:30: warning: macro 'AM_PATH_GTK' not found in library
=============== running autoheader
=============== running automake --add-missing --foreign
automake: warning: autoconf input should be named 'configure.ac', not 'configure.in'
configure.in:9: installing './compile'
configure.in:15: installing './config.guess'
configure.in:15: installing './config.sub'
configure.in:6: installing './install-sh'
configure.in:6: installing './missing'
automake: warning: autoconf input should be named 'configure.ac', not 'configure.in'
src/Makefile.am: installing './depcomp'
=============== running autoconf
configure.in:30: error: possibly undefined macro: AM_PATH_GTK
      If this token and others are legitimate, please use m4_pattern_allow.
      See the Autoconf documentation.
command "./autogen.sh" failed with status 1
note: keeping build directory `/tmp/guix-build-xsynth-dssi-0.0.1.drv-7'