[MacPorts] #69812: /usr/bin/clang++ cannot compile anything when trying to compile as x86_64 on a current arm system against the MacOSX10.13.sdk

[MacPorts]

#69812: /usr/bin/clang++ cannot compile anything when trying to compile as x86_64
on a current arm system against the MacOSX10.13.sdk
---------------------+--------------------
  Reporter:  lukaso  |      Owner:  (none)
      Type:  defect  |     Status:  new
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:
      Port:          |
---------------------+--------------------

Comment (by kencu):

 good new for you: macports-clang works, and the deployment target is set
 to 10.13 as desired (I checked the verbose build).

 This is on an arm64 Mac, either with a rosetta shell or not.

 {{{
 % cat hello.cpp
 // Your First C++ Program

 #include <iostream>

 int main() {
     std::cout << "Hello World!";
     return 0;
 }

 % /opt/local/bin/clang++-mp-17 -pipe -Os -target x86_64-apple-darwin17
 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX10.13.sdk
 hello.cpp

 % file a.out
 a.out: Mach-O 64-bit executable x86_64

 % ./a.out
 Hello World!
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/69812#comment:28>
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