build_error(build_dir, output, backtrace = nil)
public
# File lib/rubygems/ext/builder.rb, line 134
def build_error build_dir, output, backtrace = nil # :nodoc:
gem_make_out = write_gem_make_out output
message = ERROR: Failed to build gem native extension. #{output}Gem files will remain installed in #{@gem_dir} for inspection.Results logged to #{gem_make_out}
raise Gem::Ext::BuildError, message, backtrace
end