checking for --with-lto... yes checking for llvm-ar... no configure: error: llvm-ar is required for a --with-lto build with clang but could not be found.
# /usr/local/llvm10/bin/llvm-ar /usr/local/llvm10/bin/llvm-ar: error: an archive name must be specified OVERVIEW: LLVM Archiver config.log is empty. disabling --with-lto permits build, it is just this check FreeBSD 11.3-RELEASE-p8 #0 r360490 -David
