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ruby--ruby/ext/bigdecimal/extconf.rb

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# frozen_string_literal: false
require 'mkmf'
gemspec_name = gemspec_path = nil
unless ['', '../../'].any? {|dir|
gemspec_name = "#{dir}bigdecimal.gemspec"
gemspec_path = File.expand_path("../#{gemspec_name}", __FILE__)
File.file?(gemspec_path)
}
$stderr.puts "Unable to find bigdecimal.gemspec"
abort
end
bigdecimal_version =
IO.readlines(gemspec_path)
.grep(/\Abigdecimal_version\s+=\s+/)[0][/\'([\d\.]+)\'/, 1]
$defs << %Q[-DRUBY_BIGDECIMAL_VERSION=\\"#{bigdecimal_version}\\"]
alias __have_macro__ have_macro
have_func("labs", "stdlib.h")
have_func("llabs", "stdlib.h")
have_func("finite", "math.h")
have_func("isfinite", "math.h")
have_type("struct RRational", "ruby.h")
have_func("rb_rational_num", "ruby.h")
have_func("rb_rational_den", "ruby.h")
have_func("rb_array_const_ptr", "ruby.h")
have_func("rb_sym2str", "ruby.h")
create_makefile('bigdecimal') {|mf|
mf << "\nall:\n\nextconf.h: $(srcdir)/#{gemspec_name}\n"
}