[MacPorts] #62679: Graphviz fails to build on 10.9

[MacPorts]

#62679: Graphviz fails to build on 10.9
--------------------------+-----------------------
  Reporter:  Wowfunhappy  |      Owner:  (none)
      Type:  defect       |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.6.4
Resolution:               |   Keywords:  mavericks
      Port:  graphviz     |
--------------------------+-----------------------

Comment (by kencu):

 libtool is missing a tag to tell it what to do in the second line here,
 which fails (Objective-C):
 {{{
 :info:build /bin/sh ../../libtool  --tag=CC   --mode=compile
 /usr/bin/clang -std=gnu11 -DHAVE_CONFIG_H -I. -I../..  -I../..
 -I../../lib/common -I../../lib/pathplan -I../../lib/gvc -I../../lib/cgraph
 -I../../lib/cdt  -I/opt/local/include -I/opt/local/include  -pipe -Os
 -arch x86_64 -Wall -Wextra -Wmissing-include-dirs -Wswitch-default
 -Wfloat-equal -Wundef -Wshadow -Wpointer-arith -Wbad-function-cast -Wcast-
 qual -Wconversion -Wstrict-prototypes -Wmissing-prototypes -Wnested-
 externs -fno-common -Wall -MT gvtextlayout_quartz.lo -MD -MP -MF
 .deps/gvtextlayout_quartz.Tpo -c -o gvtextlayout_quartz.lo
 gvtextlayout_quartz.c
 :info:build /bin/sh ../../libtool             --mode=compile
 /usr/bin/clang            -DHAVE_CONFIG_H -I. -I../..  -I../..
 -I../../lib/common -I../../lib/pathplan -I../../lib/gvc -I../../lib/cgraph
 -I../../lib/cdt  -I/opt/local/include -I/opt/local/include  -pipe -Os
 -arch x86_64 -MT GVTextLayout.lo -MD -MP -MF .deps/GVTextLayout.Tpo -c -o
 GVTextLayout.lo GVTextLayout.m
 }}}

 I don't know why it's missing a tag exactly, but it is and that is why it
 dies in this particular spot.

 Here's some related internet wisdom that may or may not prove useful
 <https://bugs.gentoo.org/630072>

-- 
Ticket URL: <https://trac.macports.org/ticket/62679#comment:1>
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