Possible iconv fallout?

Hiho! :-)

Compilation of sylpheed-3.3.0_2 fails with (last three lines show the
error):

----
/bin/sh ../libtool --mode=link cc  -O2 -pipe  -fno-strict-aliasing
-I/usr/local/include   -I/usr/local/include/gtkspell-2.0
-I/usr/local/include/gtk-2.0 -I/usr/local/include/gio-unix-2.0/
-I/usr/local/include/atk-1.0 -I/usr/local/include/cairo
-I/usr/local/include/pixman-1 -D_THREAD_SAFE
-I/usr/local/include/gdk-pixbuf-2.0 -I/usr/local/include/libpng15
-I/usr/local/include/pango-1.0 -pthread -I/usr/local/include/glib-2.0
-I/usr/local/include/freetype2 -I/usr/local/include
-I/usr/local/include/harfbuzz   -I/usr/local/include/dbus-1.0
-I/usr/local/include/dbus-1.0/include -I/usr/local/include/glib-2.0
-I/usr/local/include   -pthread -I/usr/local/include/glib-2.0
-I/usr/local/include    -ltinfow -Wl,-rpath=/usr/local/lib -o
libsylph-0.la -rpath /usr/local/lib -version-info 2:0:1
-export-dynamic   account.lo base64.lo codeconv.lo customheader.lo
displayheader.lo filter.lo folder.lo html.lo imap.lo mbox.lo md5.lo
md5_hmac.lo mh.lo news.lo nntp.lo pop.lo prefs.lo prefs_account.lo
prefs_common.lo procheader.lo procmime.lo procmsg.lo
quoted-printable.lo recv.lo session.lo smtp.lo socket.lo socks.lo
ssl.lo stringtable.lo sylmain.lo unmime.lo utils.lo uuencode.lo
virtual.lo xml.lo syl-marshal.lo -lgobject-2.0 -Wl,--export-dynamic
-lgmodule-2.0 -pthread -L/usr/local/lib -lglib-2.0 -lintl
-L/usr/local/lib -pthread -L/usr/local/lib -lssl -lcrypto   -lgtkspell
-lgtk-x11-2.0 -lgdk-x11-2.0 -lpangocairo-1.0 -lXext -lXrender
-lXinerama -lXi -lXrandr -lXcursor -lXcomposite -lXdamage -lXfixes
-lX11 -latk-1.0 -lcairo -pthread -lgdk_pixbuf-2.0 -lgio-2.0
-lpangoft2-1.0 -lpango-1.0 -lgobject-2.0 -lglib-2.0 -lintl -lfontconfig
-L/usr/local/lib -lfreetype   -lenchant -lgmodule-2.0 -pthread
-L/usr/local/lib -lglib-2.0 -lintl   -ldbus-glib-1 -ldbus-1
-lgobject-2.0 -L/usr/local/lib -lglib-2.0 -lintl   -lgthread-2.0
-pthread -L/usr/local/lib -lglib-2.0 -lintl

grep: /usr/local/lib/libiconv.la: No such file or directory
sed: /usr/local/lib/libiconv.la: No such file or directory libtool:
link: `/usr/local/lib/libiconv.la' is not a valid libtool archive
---

Is that the ports failure or am I doing something wrong (I'm pretty
sure I followed the procedure described in ports/UPDATING)?

Bye
Marc