10_use_x-terminal-emulator
20_ruby19_or_higher
30_system_flags
40_fix_shebangs
50_include_ruby_h
60_find_xft_cflags
File.exists
error-unknown-type-name-uint64_t
Werror=address
pkg-config-ruby
-Wno-switch+-Wint-conversion
rb_define_method
debug-file-with-no-debug-symbols
