openblas @0.3.6_1: build failure (command execution failed)

[hexadecagram ({16/7})]

I have followed the instructions in ticket #58471 as well as ticket #57994:

% port installed cctools ld64\* cctools
The following ports are currently installed:
  cctools @921_2+xcode (active)
  ld64 @3_1+ld64_xcode (active)
  ld64-xcode @2_1 (active)

I have attached main.log.

[kencu (Ken)]

:info:build ld: library not found for -lgcc_ext.10.5

please show results of:

port -v installed | grep libgcc

thanks, K

[hexadecagram ({16/7})]

% port -v installed | grep libgcc
  libgcc @2.0_1 (active) platform='darwin 18' archs='noarch' date='2019-06-02T02:04:20-0700'
  libgcc8 @8.3.0_5 (active) platform='darwin 18' archs='x86_64' date='2019-06-02T02:04:40-0700'
  libgcc9 @9.1.0_2 platform='darwin 18' archs='x86_64' date='2019-06-02T02:04:18-0700'
% sudo port activate libgcc9
--->  Computing dependencies for libgcc9
--->  Activating libgcc9 @9.1.0_2
--->  Cleaning libgcc9
% sudo port install openblas
--->  Computing dependencies for OpenBLAS
--->  Building OpenBLAS
--->  Staging OpenBLAS into destroot
--->  Installing OpenBLAS @0.3.6_1+gcc9+lapack
--->  Activating OpenBLAS @0.3.6_1+gcc9+lapack
--->  Cleaning OpenBLAS
--->  Updating database of binaries
--->  Scanning binaries for linking errors
--->  No broken files found
--->  No broken ports found.
--->  Some of the ports you installed have notes:
  OpenBLAS has the following notes:
    This version is built based on a base architecture for convenience, 
    which may not be optimized for your system. To build a version 
    customized for your machine, use the +native variant

Should I uninstall gcc8 and libgcc8?

[kencu (Ken)]

No, it’s okay to leave them active. Glad it worked out.