注：大部分代码来源于 rubyinline。
#!/usr/bin/env ruby -wKU
# usage: ruby path/to/this/script path/to/your/c/source
require "rbconfig"
class MKCMD
def self.cmd(base_name)
new("#{base_name}.c", "#{base_name}.so").cmd
end
def initialize(src_name, so_name)
@src_name = src_name
@so_name = so_name
end
def cmd
hdrdir = %w(srcdir includedir archdir rubyhdrdir).map { |name|
RbConfig::CONFIG[name]
}.find { |dir|
dir and File.exist? File.join(dir, "ruby.h")
} or abort "ERROR: Can't find header dir for ruby. Exiting..."
config_hdrdir = if RbConfig::CONFIG['rubyarchhdrdir']
"-I #{RbConfig::CONFIG['rubyarchhdrdir']}"
elsif RUBY_VERSION > '1.9'
"-I #{File.join hdrdir, RbConfig::CONFIG['arch']}"
end
cmd = [
RbConfig::CONFIG['LDSHARED'],
RbConfig::CONFIG['CFLAGS'],
'-I', hdrdir,
config_hdrdir,
'-I', RbConfig::CONFIG['includedir'],
File.expand_path(@src_name).inspect,
crap_for_windoze,
RbConfig::CONFIG['LDFLAGS'],
RbConfig::CONFIG['CCDLFLAGS'],
].compact.join(' ')
# odd compilation error on clang + freebsd 10. Ruby built w/ rbenv.
cmd.gsub!(/-Wl,-soname,\$@/, "-Wl,-soname,#{File.basename @so_name}")
# strip off some makefile macros for mingw 1.9
cmd.gsub!(/\$\(.*\)/, '') if RUBY_PLATFORM =~ /mingw/
cmd
end
private
def crap_for_windoze
# gawd windoze land sucks
case RUBY_PLATFORM
when /mswin32/ then
" -link /OUT:\"#{self.so_name}\" /LIBPATH:\"#{RbConfig::CONFIG['libdir']}\" /DEFAULTLIB:\"#{RbConfig::CONFIG['LIBRUBY']}\" /INCREMENTAL:no /EXPORT:Init_#{module_name}"
when /mingw32/ then
c = RbConfig::CONFIG
" -Wl,--enable-auto-import -L#{c['libdir']} -l#{c['RUBY_SO_NAME']} -o #{@so_name.inspect}"
when /i386-cygwin/ then
' -L/usr/local/lib -lruby.dll'
else
''
end
end
end
system MKCMD.cmd((ARGV[0] || gets.chomp).chomp('.c')) if $0 == __FILE__
