Created attachment 197435 [details] patch Cmake module in this port adds -stdlib=libc++ to compilation flags when ran on FreeBSD. It needs to be removed to build e.g. on powerpc64. Tested on amd64 and powerpc64.
Committed, thanks!
A commit references this bug: Author: yuri Date: Mon Sep 24 17:39:58 UTC 2018 New revision: 480616 URL: https://svnweb.freebsd.org/changeset/ports/480616 Log: misc/soapysdr: fix build with gcc-based architectures PR: 231666 Submitted by: Piotr Kubaj <pkubaj@anongoth.pl> Changes: head/misc/soapysdr/files/patch-cmake_Modules_SoapySDRConfig.cmake