patch for ruby 2.2 securerandom.rb to get rake-compiler to cross build ruby 2.2

securerandom.rb.patch

--- /home/vagrant/.rake-compiler/sources/ruby-2.2.1/lib/securerandom.rb.original	2015-05-18 08:49:56.007018200 -0700
+++ /home/vagrant/.rake-compiler/sources/ruby-2.2.1/lib/securerandom.rb	2015-05-18 08:58:42.187018200 -0700
@@ -45,9 +45,14 @@
 
     module AdvApi32 # :nodoc:
       extend Fiddle::Importer
-      dlload "advapi32"
-      extern "int CryptAcquireContext(void*, void*, void*, unsigned long, unsigned long)"
-      extern "int CryptGenRandom(void*, unsigned long, void*)"
+
+      begin
+        dlload "advapi32"
+        extern "int CryptAcquireContext(void*, void*, void*, unsigned long, unsigned long)"
+        extern "int CryptGenRandom(void*, unsigned long, void*)"
+      rescue Fiddle::DLError => e
+	STDERR.puts "(Ignore this error if cross compiling) #{e}"
+      end
 
       def self.get_provider
         hProvStr = " " * Fiddle::SIZEOF_VOIDP
@@ -74,9 +79,14 @@
 
     module Kernel32 # :nodoc:
       extend Fiddle::Importer
-      dlload "kernel32"
-      extern "unsigned long GetLastError()"
-      extern "unsigned long FormatMessageA(unsigned long, void*, unsigned long, unsigned long, void*, unsigned long, void*)"
+
+      begin
+        dlload "kernel32"
+        extern "unsigned long GetLastError()"
+        extern "unsigned long FormatMessageA(unsigned long, void*, unsigned long, unsigned long, void*, unsigned long, void*)"
+      rescue Fiddle::DLError => e
+        STDERR.puts "(Ignore this error if cross compiling) #{e}"
+      end
 
       # Following code is based on David Garamond's GUID library for Ruby.
       def self.last_error_message