[MacPorts] #55281: gmp: compile error on High Sierra

[MacPorts]

#55281: gmp: compile error on High Sierra
--------------------+-------------------
 Reporter:  mluzum  |      Owner:
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:  2.4.2
 Keywords:          |       Port:  gmp
--------------------+-------------------
 gmp fails to compile after migrating to High Sierra.  No problems with
 compiling other packages after migration.  config.log and main.log
 attached.

 {{{
 $ sudo port clean gmp
 Password:
 --->  Cleaning gmp
 $ sudo port install gmp
 --->  Fetching distfiles for gmp
 --->  Verifying checksums for gmp
 --->  Extracting gmp
 --->  Applying patches to gmp
 --->  Configuring gmp
 Error: Failed to configure gmp, consult
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_devel_gmp/gmp/work/gmp-6.1.2/config.log
 Error: Failed to configure gmp: configure failure: command execution
 failed
 Error: See
 /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_devel_gmp/gmp/main.log
 for details.
 Error: Follow https://guide.macports.org/#project.tickets to report a bug.
 Error: Processing of port gmp failed
 }}}

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Ticket URL: <https://trac.macports.org/ticket/55281>
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