Building fails with unresolved iconv references:

  CC       ftp-opie.o
  CC       openssl.o
  CC       http-ntlm.o
  CC       version.o
  CCLD     wget
url.o: In function `url_file_name':
url.c:(.text+0x278a): undefined reference to `libiconv_open'
url.c:(.text+0x283c): undefined reference to `libiconv'
url.c:(.text+0x2861): undefined reference to `libiconv'
url.c:(.text+0x293a): undefined reference to `libiconv_close'
url.c:(.text+0x29d8): undefined reference to `libiconv_close'
cc: error: linker command failed with exit code 1 (use -v to see invocation)
gmake[5]: *** [Makefile:1501: wget] Error 1
gmake[5]: Leaving directory '/usr/obj/usr/ports/ftp/wget/work/wget-1.18/src'
gmake[4]: *** [Makefile:1400: all] Error 2
gmake[4]: Leaving directory '/usr/obj/usr/ports/ftp/wget/work/wget-1.18/src'
gmake[3]: *** [Makefile:1408: all-recursive] Error 1
gmake[3]: Leaving directory '/usr/obj/usr/ports/ftp/wget/work/wget-1.18'
gmake[2]: *** [Makefile:1364: all] Error 2
gmake[2]: Leaving directory '/usr/obj/usr/ports/ftp/wget/work/wget-1.18'
===> Compilation failed unexpectedly.
Try to set MAKE_JOBS_UNSAFE=yes and rebuild before reporting the failure to
the maintainer.
*** Error code 1

Stop.
make[1]: stopped in /usr/ports/ftp/wget
*** Error code 1

Stop.
make: stopped in /usr/ports/ftp/wget