[MacPorts] #57134: autogen @5.18.14: build fails on 10.13 due to error: no member named 'st_mtim' in 'struct stat'

[MacPorts]

#57134: autogen @5.18.14: build fails on 10.13 due to error: no member named
'st_mtim' in 'struct stat'
--------------------+---------------------
 Reporter:  kencu   |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:
 Keywords:          |       Port:  autogen
--------------------+---------------------
 Looks like the recent update to `5.18.14` is the cause for this, as
 nothing else seems to have changed in the build of `autogen`.

 <https://build.macports.org/builders/ports-10.13_x86_64-builder/builds/34707/steps
 /install-port/logs/stdio>

 `5.18.16` is out, but also fails in the same fashion.

 rolling back to `5.18.12` still works fine, and I see that's where
 homebrew is pegged at present.

-- 
Ticket URL: <https://trac.macports.org/ticket/57134>
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