Created attachment 206093 [details] patch As with other lv2 ports, C++11 compiler needs to be used and -mtune=generic -msse -msse2 need to be removed.
A commit references this bug: Author: yuri Date: Sat Jul 27 06:01:45 UTC 2019 New revision: 507381 URL: https://svnweb.freebsd.org/changeset/ports/507381 Log: audio/string-machine-lv2: Fix build on non-x86 PR: 239470 Reported by: pkubaj Changes: head/audio/string-machine-lv2/Makefile head/audio/string-machine-lv2/files/patch-dpf_Makefile.base.mk
Committed the patch that solves the same problem in a different way. Thank you for your report! Yuri