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# frozen_string_literal: false
require 'mkmf'
def check_bigdecimal_version(gemspec_path)
message "checking RUBY_BIGDECIMAL_VERSION... "
bigdecimal_version = File.read(gemspec_path).match(/^\s*s\.version\s+=\s+['"]([^'"]+)['"]\s*$/)[1]
version_components = bigdecimal_version.split('.')
bigdecimal_version = version_components[0, 3].join('.')
bigdecimal_version << "-#{version_components[3]}" if version_components[3]
$defs << %Q[-DRUBY_BIGDECIMAL_VERSION=\\"#{bigdecimal_version}\\"]
message "#{bigdecimal_version}\n"
end
def have_builtin_func(name, check_expr, opt = "", &b)
checking_for checking_message(name.funcall_style, nil, opt) do
if try_compile(<<SRC, opt, &b)
int foo;
int main() { #{check_expr}; return 0; }
SRC
$defs.push(format("-DHAVE_BUILTIN_%s", name.tr_cpp))
true
else
false
end
end
end
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)
}
$stderr.puts "Unable to find bigdecimal.gemspec"
abort
end
check_bigdecimal_version(gemspec_path)
have_builtin_func("__builtin_clz", "__builtin_clz(0)")
have_builtin_func("__builtin_clzl", "__builtin_clzl(0)")
have_builtin_func("__builtin_clzll", "__builtin_clzll(0)")
have_header("float.h")
have_header("math.h")
have_header("stdbool.h")
have_header("stdlib.h")
have_header("x86intrin.h")
have_func("_lzcnt_u32", "x86intrin.h")
have_func("_lzcnt_u64", "x86intrin.h")
have_header("intrin.h")
have_func("__lzcnt", "intrin.h")
have_func("__lzcnt64", "intrin.h")
have_func("_BitScanReverse", "intrin.h")
have_func("_BitScanReverse64", "intrin.h")
have_func("labs", "stdlib.h")
have_func("llabs", "stdlib.h")
have_func("finite", "math.h")
have_func("isfinite", "math.h")
have_header("ruby/atomic.h")
have_header("ruby/internal/has/builtin.h")
have_header("ruby/internal/static_assert.h")
have_func("rb_rational_num", "ruby.h")
have_func("rb_rational_den", "ruby.h")
have_func("rb_complex_real", "ruby.h")
have_func("rb_complex_imag", "ruby.h")
have_func("rb_array_const_ptr", "ruby.h")
have_func("rb_sym2str", "ruby.h")
have_func("rb_opts_exception_p", "ruby.h")
have_func("rb_category_warn", "ruby.h")
have_const("RB_WARN_CATEGORY_DEPRECATED", "ruby.h")
if File.file?(File.expand_path('../lib/bigdecimal.rb', __FILE__))
bigdecimal_rb = "$(srcdir)/lib/bigdecimal.rb"
else
bigdecimal_rb = "$(srcdir)/../../lib/bigdecimal.rb"
end
create_makefile('bigdecimal') {|mf|
mf << "GEMSPEC = #{gemspec_name}\n"
mf << "BIGDECIMAL_RB = #{bigdecimal_rb}\n"
}
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