=> Bootstrap dependency digest>=20010302: found digest-20190127
===> Skipping vulnerability checks.
WARNING: No /usr/pkg/pkgdb/pkg-vulnerabilities file found.
WARNING: To fix run: `/usr/pkg/sbin/pkg_admin -K /usr/pkg/pkgdb fetch-pkg-vulnerabilities'.
===> Building for libao-macosx-1.2.2
  CC       ao_macosx.lo
ao_macosx.c: In function 'ao_plugin_open':
ao_macosx.c:413: error: 'AudioComponent' undeclared (first use in this function)
ao_macosx.c:413: error: (Each undeclared identifier is reported only once
ao_macosx.c:413: error: for each function it appears in.)
ao_macosx.c:413: error: parse error before 'comp'
ao_macosx.c:414: error: 'AudioComponentDescription' undeclared (first use in this function)
ao_macosx.c:420: error: 'desc' undeclared (first use in this function)
ao_macosx.c:426: error: 'comp' undeclared (first use in this function)
gmake: *** [Makefile:469: ao_macosx.lo] Error 1
*** Error code 2

Stop.
bmake[1]: stopped in /usr/pkgsrc/audio/libao-macosx
*** Error code 1

Stop.
bmake: stopped in /usr/pkgsrc/audio/libao-macosx