[MacPorts] #62804: emacs-devel @20210430: error: "Please include config.h first."

[MacPorts]

#62804: emacs-devel @20210430: error: "Please include config.h first."
--------------------------+----------------------
  Reporter:  pagecp       |      Owner:  drkp
      Type:  defect       |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.6.4
Resolution:               |   Keywords:  bigsur
      Port:  emacs-devel  |
--------------------------+----------------------
Changes (by ryandesign):

 * cc: catap (added)


Comment:

 Do you still see this issue with the current version? We have successful
 builds of this port on recent macOS versions on our automated build
 system.

 From your log, it looks like it's trying to use local copies of stdlib.h
 and unistd.h, which is failing because these expect some config.h to be
 included first.

 stdlib.h and unistd.h are standard system headers which are already
 provided by Xcode or the command line tools and the standard versions do
 not require the inclusion of any config.h. Presumably emacs includes these
 headers for compatibility with ancient systems that don't have them
 however its configure output shows that it has correctly detected that
 your system has these headers so I don't know why it is still trying to
 use its own versions.

-- 
Ticket URL: <https://trac.macports.org/ticket/62804#comment:3>
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