[MacPorts] #61406: Emacs 27.1_2 +x11 fails to build with undefined symbol

[MacPorts]

#61406: Emacs 27.1_2 +x11 fails to build with undefined symbol
-------------------------+------------------------------
 Reporter:  texas-swift  |      Owner:  (none)
     Type:  defect       |     Status:  new
 Priority:  Normal       |  Milestone:
Component:  ports        |    Version:  2.6.3
 Keywords:  emacs +x11   |       Port:  emacs at 27.1_2+x11
-------------------------+------------------------------
 Hello,

 I have so far been unable to build any version of Emacs 27 +x11.  I keep
 getting this message during bootstrap build:

 :info:build ./temacs --batch  -l loadup --temacs=pbootstrap
 :info:build dyld: lazy symbol binding failed: Symbol not found:
 _aligned_alloc
 :info:build   Referenced from:
 /opt/local/var/macports/build/_opt_local_var_mac\
 ports_sources_rsync.macports.org_macports_release_tarballs_ports_editors_emacs/\
 emacs/work/emacs-27.1/src/./temacs
 :info:build   Expected in: /usr/lib/libSystem.B.dylib

 I can successfully build emacs 27.1_2 W/O x11, but I am a heavy X11 user
 and prefer that variant.
 I have also successfully built emacs 26+x11.

 macOS 10.14.6 Mojave
 Xcode 11.3.1

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Ticket URL: <https://trac.macports.org/ticket/61406>
MacPorts <https://www.macports.org/>
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