[MacPorts] #67290: fnc @0.15: error: declaration does not declare anything

[MacPorts]

#67290: fnc @0.15: error: declaration does not declare anything
------------------------+----------------------
 Reporter:  ryandesign  |      Owner:  mcjsk
     Type:  defect      |     Status:  assigned
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:  2.8.1
 Keywords:              |       Port:  fnc
------------------------+----------------------
 fnc fails to build on macOS 10.15 and earlier:

 https://build.macports.org/builders/ports-10.15_x86_64-builder/builds/137045/steps
 /install-port/logs/stdio
 {{{
 lib/libfossil.c:5308:5: error: declaration does not declare anything
 [-Werror,-Wmissing-declarations]
     __attribute__ ((fallthrough));
     ^
 lib/libfossil.c:24826:7: error: declaration does not declare anything
 [-Werror,-Wmissing-declarations]
       __attribute__ ((fallthrough));
       ^
 lib/libfossil.c:24828:7: error: declaration does not declare anything
 [-Werror,-Wmissing-declarations]
       __attribute__ ((fallthrough));
       ^
 lib/libfossil.c:24830:7: error: declaration does not declare anything
 [-Werror,-Wmissing-declarations]
       __attribute__ ((fallthrough));
       ^
 lib/libfossil.c:35036:7: error: declaration does not declare anything
 [-Werror,-Wmissing-declarations]
       __attribute__ ((fallthrough));
       ^
 5 errors generated.
 *** Error code 1
 1 error
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/67290>
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