git 1.6.6.1 fails to install with homebrew (rev 70101b34d415edeaba38a54737bb6b6cfa488afe)

/usr/local brew install git
==> Downloading http://kernel.org/pub/software/scm/git/git-1.6.6.1.tar.bz2
File already downloaded and cached to /Users/kevinsmith/Library/Caches/Homebrew
==> make prefix=/usr/local/Cellar/git/1.6.6.1 install
GIT_VERSION = 1.6.6.1
    * new build flags or prefix
    GEN git-am
    GEN git-bisect
    GEN git-difftool--helper
    GEN git-filter-branch
    GEN git-lost-found
    GEN git-merge-octopus
    GEN git-merge-one-file
    GEN git-merge-resolve
    GEN git-mergetool
    GEN git-mergetool--lib
    GEN git-notes
    GEN git-parse-remote
    GEN git-pull
    GEN git-quiltimport
    GEN git-rebase--interactive
    GEN git-rebase
    GEN git-repack
    GEN git-request-pull
    GEN git-sh-setup
    GEN git-stash
    GEN git-submodule
    GEN git-web--browse
    SUBDIR perl
/usr/bin/perl Makefile.PL PREFIX='/usr/local/Cellar/git/1.6.6.1'
    GEN gitweb/gitweb.cgi
    GEN common-cmds.h
    CC builtin-add.o
Writing perl.mak for Git
    CC builtin-annotate.o
    CC builtin-apply.o
    CC builtin-archive.o
    CC builtin-bisect--helper.o
    CC builtin-blame.o
    CC builtin-branch.o
    CC builtin-bundle.o
    CC builtin-cat-file.o
    CC builtin-check-attr.o
    CC builtin-check-ref-format.o
    CC builtin-checkout-index.o
    CC builtin-checkout.o
    CC builtin-clean.o
    CC builtin-clone.o
    CC builtin-commit-tree.o
    CC builtin-commit.o
    CC builtin-config.o
    CC builtin-count-objects.o
    CC builtin-describe.o
    CC builtin-diff-files.o
    CC builtin-diff-index.o
    CC builtin-diff-tree.o
    CC builtin-diff.o
    CC builtin-fast-export.o
    CC builtin-fetch-pack.o
    CC builtin-fetch.o
    CC builtin-fmt-merge-msg.o
    CC builtin-for-each-ref.o
    CC builtin-fsck.o
    CC builtin-gc.o
    CC builtin-grep.o
    CC builtin-help.o
    CC builtin-init-db.o
    CC builtin-log.o
    CC builtin-ls-files.o
    CC builtin-ls-remote.o
    CC builtin-ls-tree.o
    CC builtin-mailinfo.o
    CC builtin-mailsplit.o
    CC builtin-merge.o
    CC builtin-merge-base.o
    CC builtin-merge-file.o
    CC builtin-merge-ours.o
    CC builtin-merge-recursive.o
    CC builtin-mktree.o
    CC builtin-mv.o
    CC builtin-name-rev.o
    CC builtin-pack-objects.o
    CC builtin-pack-refs.o
    CC builtin-prune-packed.o
    CC builtin-prune.o
    CC builtin-push.o
    CC builtin-read-tree.o
    CC builtin-receive-pack.o
    CC builtin-reflog.o
    CC builtin-remote.o
    CC builtin-replace.o
    CC builtin-rerere.o
    CC builtin-reset.o
    CC builtin-rev-list.o
    CC builtin-rev-parse.o
    CC builtin-revert.o
    CC builtin-rm.o
    CC builtin-send-pack.o
    CC builtin-shortlog.o
    CC builtin-show-branch.o
    CC builtin-show-ref.o
    CC builtin-stripspace.o
    CC builtin-symbolic-ref.o
    CC builtin-tag.o
    CC builtin-tar-tree.o
    CC builtin-unpack-objects.o
    CC builtin-update-index.o
    CC builtin-update-ref.o
    CC builtin-update-server-info.o
    CC builtin-upload-archive.o
    CC builtin-verify-pack.o
    CC builtin-verify-tag.o
    CC builtin-write-tree.o
    CC test-chmtime.o
    CC test-ctype.o
    CC test-date.o
    CC test-delta.o
    CC test-dump-cache-tree.o
    CC test-genrandom.o
    CC test-match-trees.o
    CC test-parse-options.o
    CC test-path-utils.o
    CC test-sha1.o
    CC test-sigchain.o
    CC fast-import.o
    CC abspath.o
    CC advice.o
    CC alias.o
    CC alloc.o
    CC archive.o
    CC archive-tar.o
    CC archive-zip.o
    CC attr.o
    CC base85.o
    CC bisect.o
    CC blob.o
    CC branch.o
    CC bundle.o
    CC cache-tree.o
    CC color.o
    CC combine-diff.o
    CC commit.o
    CC config.o
    CC connect.o
    CC convert.o
    CC copy.o
    CC csum-file.o
    CC ctype.o
    CC date.o
    CC decorate.o
    CC diffcore-break.o
    CC diffcore-delta.o
    CC diffcore-order.o
    CC diffcore-pickaxe.o
    CC diffcore-rename.o
    CC diff-delta.o
    CC diff-lib.o
    CC diff-no-index.o
    CC diff.o
    CC dir.o
    CC editor.o
    CC entry.o
    CC environment.o
    CC exec_cmd.o
    CC fsck.o
    CC graph.o
    CC grep.o
    CC hash.o
    CC help.o
    CC ident.o
    CC levenshtein.o
    CC list-objects.o
    CC ll-merge.o
    CC lockfile.o
    CC log-tree.o
    CC mailmap.o
    CC match-trees.o
    CC merge-file.o
    CC merge-recursive.o
    CC name-hash.o
    CC notes.o
    CC object.o
    CC pack-refs.o
    CC pack-check.o
    CC pack-revindex.o
    CC pack-write.o
    CC pager.o
    CC parse-options.o
    CC patch-delta.o
    CC patch-ids.o
    CC path.o
    CC pkt-line.o
    CC preload-index.o
    CC pretty.o
    CC progress.o
    CC quote.o
    CC reachable.o
    CC read-cache.o
    CC reflog-walk.o
    CC refs.o
    CC remote.o
    CC replace_object.o
    CC rerere.o
    CC revision.o
    CC run-command.o
    CC server-info.o
    CC setup.o
    CC sha1-lookup.o
    CC sha1_file.o
    CC sha1_name.o
    CC shallow.o
    CC sideband.o
    CC sigchain.o
    CC strbuf.o
    CC string-list.o
    CC submodule.o
    CC symlinks.o
    CC tag.o
    CC trace.o
    CC transport.o
    CC transport-helper.o
    CC tree-diff.o
    CC tree.o
    CC tree-walk.o
    CC unpack-trees.o
    CC usage.o
    CC userdiff.o
    CC utf8.o
    CC walker.o
    CC wrapper.o
    CC write_or_die.o
    CC ws.o
    CC wt-status.o
    CC xdiff-interface.o
    CC thread-utils.o
    CC compat/memmem.o
    CC xdiff/xdiffi.o
    CC xdiff/xprepare.o
    CC xdiff/xutils.o
    CC xdiff/xemit.o
    CC xdiff/xmerge.o
    CC xdiff/xpatience.o
    CC hash-object.o
    CC imap-send.o
    CC index-pack.o
    CC merge-index.o
    CC merge-tree.o
    CC mktag.o
    CC pack-redundant.o
    CC patch-id.o
    CC shell.o
    CC show-index.o
    CC unpack-file.o
    CC upload-pack.o
    CC var.o
    CC http-backend.o
    CC remote-curl.o
    CC http.o
    CC http-walker.o
    CC http-fetch.o
    CC http-push.o
    CC daemon.o
    GEN git-add--interactive
    GEN git-difftool
    GEN git-archimport
    GEN git-cvsexportcommit
    GEN git-cvsimport
    GEN git-cvsserver
    GEN git-relink
    GEN git-send-email
    GEN git-svn
    GEN git-instaweb
    CC git.o
    AR libgit.a
    AR xdiff/lib.a
    LINK git-fast-import
    LINK git-hash-object
Undefined symbols:
  "_libiconv_open", Undefined symbols:
  "_libiconv_open", referenced from:
      _reencode_string referencedin from: 
 libgit.a(utf8.o)
  "_libiconv", referenced from:
      _reencode_string in libgit.a(utf8.o)
  "_libiconv_close", referenced from:
      _reencode_string in libgit.a(utf8.o)
      _reencode_string in libgit.a(utf8.o)
ld: symbol(s) not found
     _reencode_string in libgit.a(utf8.o)
  "_libiconv", referenced from:
      _reencode_string in libgit.a(utf8.o)
  "collect2: _libiconv_close", referenced from:
     ld returned 1 exit status 
_reencode_string in libgit.a(utf8.o)
      _reencode_string in libgit.a(utf8.o)
ld: symbol(s) not found
collect2: ld returned 1 exit status
make: *** [git-hash-object] Error 1
make: *** Waiting for unfinished jobs....
make: *** [git-fast-import] Error 1
http://github.com/mxcl/homebrew/blob/master/Library/Formula/git.rb#L20
==> Environment
HOMEBREW_VERSION: 0.5
HEAD: 
HOMEBREW_PREFIX: /usr/local
HOMEBREW_CELLAR: /usr/local/Cellar
HOMEBREW_CACHE: /Users/kevinsmith/Library/Caches/Homebrew
HOMEBREW_REPOSITORY: /usr/local
HOMEBREW_LIBRARY_PATH: /usr/local/Library/Homebrew
Hardware: dual-core 64-bit core2
OS X: 10.6.2
Kernel Architecture: i386
Ruby: 1.8.7-72
GCC-4.2: build 5646 (5577 or newer recommended)
LLVM: build 2206 (2206 or newer recommended)
MacPorts or Fink? false
X11 installed? true
Exit status: 2
Error: Failure while executing: make prefix=/usr/local/Cellar/git/1.6.6.1 install
Please report this bug at http://github.com/mxcl/homebrew/issues
These existing issues may help you:
http://github.com/mxcl/homebrew/issues/#issue/33
http://github.com/mxcl/homebrew/issues/#issue/613