require 'mkmf' # :stopdoc: dir_config 'libffi' pkg_config("libffi") unless have_header('ffi.h') if have_header('ffi/ffi.h') $defs.push(format('-DUSE_HEADER_HACKS')) else raise "ffi.h is missing. Please install libffi." end end unless have_library('ffi') || have_library('libffi') raise "libffi is missing. Please install libffi." end have_header 'sys/mman.h' if have_header "dlfcn.h" have_library "dl" %w{ dlopen dlclose dlsym }.each do |func| abort "missing function #{func}" unless have_func(func) end have_func "dlerror" elsif have_header "windows.h" %w{ LoadLibrary FreeLibrary GetProcAddress }.each do |func| abort "missing function #{func}" unless have_func(func) end end config = File.read(RbConfig.expand(File.join($arch_hdrdir, "ruby/config.h"))) types = {"SIZE_T"=>"SSIZE_T", "PTRDIFF_T"=>nil, "INTPTR_T"=>nil} types.each do |type, signed| if /^\#define\s+SIZEOF_#{type}\s+(SIZEOF_(.+)|\d+)/ =~ config if size = $2 and size != 'VOIDP' size = types.fetch(size) {size} $defs << format("-DTYPE_%s=TYPE_%s", signed||type, size) end if signed check_signedness(type.downcase, "stddef.h") end end end create_makefile 'fiddle' # :startdoc: