gnulib-tool not working on AIX

[Albert Chin]

Should gnulib-tool work on AIX? On AIX 5.3 and 6.1:
  $ ./gnulib-tool --test --with-tests fcntl
  Module list with included dependencies:
    fcntl
    fcntl-tests
    include_next
    link-warning
    unistd
    unistd-tests
  File list:
    build-aux/link-warning.h
    lib/dummy.c
    lib/fcntl.in.h
    lib/unistd.in.h
    m4/fcntl_h.m4
    m4/gnulib-common.m4
    m4/include_next.m4
    m4/onceonly.m4
    m4/unistd_h.m4
    tests/test-fcntl.c
    tests/test-unistd.c
  sed: 0602-429 No editing script was provided.
  Usage:  sed [-n] Script [File ...]
          sed [-n] [-e Script] ... [-f Script_file] ... [File ...]
  sed: 0602-429 No editing script was provided.
  Usage:  sed [-n] Script [File ...]
          sed [-n] [-e Script] ... [-f Script_file] ... [File ...]
  sed: 0602-429 No editing script was provided.
  Usage:  sed [-n] Script [File ...]
          sed [-n] [-e Script] ... [-f Script_file] ... [File ...]
  sed: 0602-429 No editing script was provided.
  Usage:  sed [-n] Script [File ...]
          sed [-n] [-e Script] ... [-f Script_file] ... [File ...]
  sed: 0602-429 No editing script was provided.
  Usage:  sed [-n] Script [File ...]
          sed [-n] [-e Script] ... [-f Script_file] ... [File ...]
  executing aclocal -I glm4
  ...

If I make sure GNU sed as 'sed' is in $PATH, so /bin/sed is not used,
it works. Haven't yet found the culprit though.

-- 
albert chin (address@hidden)