Merge branch '3-packaging-change-triggers-falling-back-to-gcc-to-determine-sizeof-size_t-warnings' into 'master'

Packaging change triggers `Falling back to gcc to determine sizeof size_t` warnings

Closes #3

See merge request !3

lib/linux/c_struct.rb

@@ -82,8 +82,8 @@ class CStruct
   begin
     require 'linux/c_struct_sizeof_size_t.rb'
   rescue LoadError
-    warn "Falling back to gcc to determine sizeof size_t." if $VERBOSE
-    SIZEOF_SIZE_T = Integer(`echo __SIZEOF_SIZE_T__ | gcc -E -P -`) rescue 1.size
+    warn "netlinkrb: Assuming size_t is a long unsigned int." if $DEBUG
+    SIZEOF_SIZE_T = [0].pack("L_").bytesize
   end
 
   define_type :size_t,