[MacPorts] #65694: enblend: builds fail for 10.13: clang 9.0 crash

[MacPorts]

#65694: enblend: builds fail for 10.13: clang 9.0 crash
---------------------+----------------------
 Reporter:  mascguy  |      Owner:  mascguy
     Type:  defect   |     Status:  assigned
 Priority:  Normal   |  Milestone:
Component:  ports    |    Version:  2.7.2
 Keywords:           |       Port:  enblend
---------------------+----------------------
 While this port builds locally for 10.13 without error (at least for yours
 truly), it consistently fails on the buildbot with the following:

 {{{
 /usr/bin/clang++ -DHAVE_CONFIG_H -I. -I..
 -I/opt/local/libexec/boost/1.76/include -I/opt/local/include
 -DENBLEND_SOURCE
 -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -I../src/dynamic_loader
 -I../src/layer_selection -D_THREAD_SAFE -I/opt/local/include/OpenEXR -pipe
 -I/opt/local/libexec/boost/1.76/include -Os -std=c++11 -stdlib=libc++
 -arch x86_64 -O2 -DNDEBUG -MT enblend-enblend.o -MD -MP -MF
 .deps/enblend-enblend.Tpo -c -o enblend-enblend.o `test -f 'enblend.cc' ||
 echo './'`enblend.cc

 clang: error: unable to execute command: Illegal instruction: 4
 clang: error: clang frontend command failed due to signal (use -v to see
 invocation)
 Apple LLVM version 9.1.0 (clang-902.0.39.2)
 Target: x86_64-apple-darwin17.7.0
 Thread model: posix
 InstalledDir: /Library/Developer/CommandLineTools/usr/bin

 [...]

 make[4]: *** [enblend-enblend.o] Error 254
 make[4]: *** Waiting for unfinished jobs....
 clang: error: unable to execute command: Illegal instruction: 4
 clang: error: clang frontend command failed due to signal (use -v to see
 invocation)
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/65694>
MacPorts <https://www.macports.org/>
Ports system for macOS