ext/zlib/extconf.rb in zlib-2.1.1 vs ext/zlib/extconf.rb in zlib-3.0.0

@@ -119,13 +119,15 @@
 
   if zsrc
     $defs << "-DHAVE_CRC32_COMBINE"
     $defs << "-DHAVE_ADLER32_COMBINE"
     $defs << "-DHAVE_TYPE_Z_CRC_T"
+    $defs << "-DHAVE_TYPE_Z_SIZE_T"
   else
     have_func('crc32_combine', 'zlib.h')
     have_func('adler32_combine', 'zlib.h')
     have_type('z_crc_t', 'zlib.h')
+    have_type('z_size_t', 'zlib.h')
   end
 
   create_makefile('zlib') {|conf|
     if zsrc
       conf.concat addconf if addconf