>>> shairport-sync 3.3.8 Extracting
gzip -d -c /home/buildroot/autobuild/instance-2/dl/shairport-sync/shairport-sync-3.3.8.tar.gz | tar --strip-components=1 -C /home/buildroot/autobuild/instance-2/output-1/build/shairport-sync-3.3.8   -xf -
>>> shairport-sync 3.3.8 Patching

Applying 0001-configure.ac-find-sndfile-through-pkg-config.patch using patch: 
patching file configure.ac
>>> shairport-sync 3.3.8 Updating config.sub and config.guess
for file in config.guess config.sub; do for i in $(find /home/buildroot/autobuild/instance-2/output-1/build/shairport-sync-3.3.8 -name $file); do cp support/gnuconfig/$file $i; done; done
>>> shairport-sync 3.3.8 Configuring
>>> shairport-sync 3.3.8 Autoreconfiguring
configure.ac:305: error: AM_INIT_AUTOMAKE expanded multiple times
/home/buildroot/autobuild/instance-2/output-1/host/share/aclocal-1.16/init.m4:29: AM_INIT_AUTOMAKE is expanded from...
configure.ac:6: the top level
/home/buildroot/autobuild/instance-2/output-1/host/share/aclocal-1.16/init.m4:29: AM_INIT_AUTOMAKE is expanded from...
configure.ac:305: the top level
autom4te: error: /home/buildroot/autobuild/instance-2/output-1/host/bin/m4 failed with exit status: 1
aclocal: error: /home/buildroot/autobuild/instance-2/output-1/host/bin/autom4te failed with exit status: 1
autoreconf: error: /home/buildroot/autobuild/instance-2/output-1/host/bin/aclocal failed with exit status: 1
package/pkg-generic.mk:273: recipe for target '/home/buildroot/autobuild/instance-2/output-1/build/shairport-sync-3.3.8/.stamp_configured' failed
make: *** [/home/buildroot/autobuild/instance-2/output-1/build/shairport-sync-3.3.8/.stamp_configured] Error 1
make: Leaving directory '/home/buildroot/autobuild/instance-2/buildroot'