[macOS] Linking failure: `Undefined symbols: "_le16toh"`

[barracuda156]

libtool: link: ccache /usr/bin/gcc-4.2 -std=gnu99 -Wall -Wextra -Wno-unused-parameter -I/opt/local/include/gtk-3.0 -I/opt/local/include/at-spi2-atk/2.0 -I/opt/local/include/at-spi-2.0 -I/opt/local/include/dbus-1.0 -I/opt/local/lib/dbus-1.0/include -I/opt/local/include/gtk-3.0 -I/opt/local/include/gio-unix-2.0 -I/opt/local/include/cairo -I/opt/local/include/pango-1.0 -I/opt/local/include/harfbuzz -I/opt/local/include/pango-1.0 -I/opt/local/include/fribidi -I/opt/local/include/harfbuzz -I/opt/local/include/atk-1.0 -I/opt/local/include/cairo -I/opt/local/include/pixman-1 -I/opt/local/include/freetype2 -I/opt/local/include/gdk-pixbuf-2.0 -I/opt/local/include/libpng16 -I/opt/local/include/glib-2.0 -I/opt/local/lib/glib-2.0/include -DHTMLDIR=\"/opt/local/share/doc/xarchiver\" -DLOCALEDIR=\"/opt/local/share/locale\" -DPIXMAPSDIR=\"/opt/local/share/pixmaps/xarchiver\" -Wno-deprecated-declarations -pipe -Os -arch ppc -Wl,-headerpad_max_install_names -arch ppc -o xarchiver xarchiver-7zip.o xarchiver-add_dialog.o xarchiver-ar.o xarchiver-archive.o xarchiver-arj.o xarchiver-cpio.o xarchiver-date_utils.o xarchiver-exe.o xarchiver-extract_dialog.o xarchiver-gzip_et_al.o xarchiver-interface.o xarchiver-iso.o xarchiver-lha.o xarchiver-main.o xarchiver-mime.o xarchiver-new_dialog.o xarchiver-open-with-dlg.o xarchiver-pref_dialog.o xarchiver-rar.o xarchiver-rpm.o xarchiver-socket.o xarchiver-squashfs.o xarchiver-string_utils.o xarchiver-tar.o xarchiver-unar.o xarchiver-utf8-fnmatch.o xarchiver-window.o xarchiver-zip.o xarchiver-zpaq.o  -L/opt/local/lib xdgmime/.libs/libxdgmime.a -lgtk-3 -lgdk-3 -lpangocairo-1.0 -lpango-1.0 /opt/local/lib/libharfbuzz.dylib -latk-1.0 /opt/local/lib/libcairo-gobject.dylib /opt/local/lib/libcairo.dylib -lgdk_pixbuf-2.0 -lgio-2.0 -lgobject-2.0 -lglib-2.0 -lintl -framework ApplicationServices -pthread
Undefined symbols:
  "_le16toh", referenced from:
      _exetype in xarchiver-exe.o
ld: symbol(s) not found