[MacPorts] #61336: llvm-3.4 @3.4.2: configure: error: libffi not found

[MacPorts]

#61336: llvm-3.4 @3.4.2: configure: error: libffi not found
------------------------+----------------------
 Reporter:  ryandesign  |      Owner:  jeremyhu
     Type:  defect      |     Status:  assigned
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:
 Keywords:              |       Port:  llvm-3.4
------------------------+----------------------
 https://build.macports.org/builders/ports-10.6_x86_64-builder/builds/36746/steps
 /install-port/logs/stdio
 {{{
 checking for library containing ffi_call... no
 configure: error: libffi not found - configure without --enable-libffi to
 compile without it
 }}}
 llvm-3.4 is part of the normal build chain (+llvm34 is the default variant
 of ld64 on 10.6 and 10.7) so keeping it working is important.

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Ticket URL: <https://trac.macports.org/ticket/61336>
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