dvdauthor @0.7.2: error: possibly undefined macro: AM_ICONV

[ryandesign (Ryan Carsten Schmidt)]

​https://build.macports.org/builders/ports-14_arm64-builder/builds/22353/steps/install-port/logs/stdio

autoreconf: export WARNINGS=
autoreconf: Entering directory '.'
autoreconf: configure.ac: not using Gettext
autoreconf: running: /opt/local/bin/aclocal --force 
configure.ac:139: warning: macro 'AM_ICONV' not found in library
autoreconf: configure.ac: tracing
autoreconf: running: /opt/local/bin/glibtoolize --copy --force
glibtoolize: putting auxiliary files in AC_CONFIG_AUX_DIR, 'autotools'.
glibtoolize: copying file 'autotools/ltmain.sh'
glibtoolize: Consider adding 'AC_CONFIG_MACRO_DIRS([m4])' to configure.ac,
glibtoolize: and rerunning glibtoolize and aclocal.
glibtoolize: Consider adding '-I m4' to ACLOCAL_AMFLAGS in Makefile.am.
autoreconf: configure.ac: not using Intltool
autoreconf: configure.ac: not using Gtkdoc
autoreconf: running: /opt/local/bin/aclocal --force 
configure.ac:139: warning: macro 'AM_ICONV' not found in library
autoreconf: running: /opt/local/bin/autoconf --force
configure.ac:143: warning: AC_OUTPUT should be used without arguments.
configure.ac:143: You should run autoupdate.
configure.ac:139: error: possibly undefined macro: AM_ICONV
      If this token and others are legitimate, please use m4_pattern_allow.
      See the Autoconf documentation.
autoreconf: error: /opt/local/bin/autoconf failed with exit status: 1