[MacPorts] #57422: polyml @5.7.1_1: error: --with-system-libffi was given, but ffi.h header file cannot be found

[MacPorts]

#57422: polyml @5.7.1_1: error: --with-system-libffi was given, but ffi.h header
file cannot be found
------------------------+----------------------
 Reporter:  ryandesign  |      Owner:  pclayton
     Type:  defect      |     Status:  assigned
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:
 Keywords:              |       Port:  polyml
------------------------+----------------------
 [https://build.macports.org/builders/ports-10.13_x86_64-builder/builds/39197/steps
 /install-port/logs/stdio polyml does not build]:

 {{{
 checking for FFI... no
 checking for ffi_prep_closure_loc in -lffi... yes
 checking ffi.h usability... no
 checking ffi.h presence... no
 checking for ffi.h... no
 configure: error: in
 `/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_lang_polyml/polyml/work/polyml-5.7.1':
 configure: error: --with-system-libffi was given, but ffi.h header file
 cannot be found
 See `config.log' for more details
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/57422>
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