[MacPorts] #57514: Configure fails on xcode clang

[MacPorts]

#57514: Configure fails on xcode clang
-----------------------------------+-----------------------------
 Reporter:  mmaenz                 |      Owner:  (none)
     Type:  defect                 |     Status:  new
 Priority:  Normal                 |  Milestone:
Component:  ports                  |    Version:
 Keywords:  xcode apple clang gcc  |       Port:  openmpi-default
-----------------------------------+-----------------------------
 Configure fails with xcode clang in /usr/bin/clang -> Apple LLVM version
 8.1.0 (clang-802.0.42).

 My $PATH exports first /opt/local/bin but port defaults to /usr/bin.

 Only help was to edit Portfile and comment out all supported compilers
 except gcc8 {macports-gcc-8}, put
 compiler.blacklist-append *clang*
 and add
 compiler.fallback macports-gcc-8

 Configure runs fine with gcc8.

 I didn't try other methods. This was my first idea.

 Thanks!
 -Michael

-- 
Ticket URL: <https://trac.macports.org/ticket/57514>
MacPorts <https://www.macports.org/>
Ports system for macOS