Build failure during metro gnome build:
12.1.0 ./enc/unicode/12.1.0/casefold.h ./enc/unicode/12.1.0/name2ctype.h ./miniruby -I./lib -I. -I.ext/common ./tool/generic_erb.rb -c -o encdb.h ./template/encdb.h.tmpl ./enc enc miniruby: thread_pthread.c:1995: rb_sigwait_fd_put: Assertion `old == th' failed. make: *** [uncommon.mk:1033: encdb.h] Aborted make: *** Waiting for unfinished jobs.... ./miniruby -I./lib -I. -I.ext/common ./tool/mkconfig.rb \ -arch=riscv64-linux -version=2.6.6 \ -install_name=ruby26 \ -so_name=ruby26 \ -unicode_version=12.1.0 \ -unicode_emoji_version=12.0 \ > rbconfig.tmp ./tool/ifchange "--timestamp=.rbconfig.time" rbconfig.rb rbconfig.tmp rbconfig.rb ESC[31;1mupdatedESC[m * ERROR: dev-lang/ruby-2.6.6-r3::ruby-kit failed (compile phase): * emake failed