Make a gyp file for the pnacl_irt_shim.

build/all.gyp

 {
   'includes': [
     'common.gypi',
   ],
   'targets': [
     {
       'target_name': 'pull_in_all',
       'type': 'none',
       'dependencies': [
         '../src/shared/gio/gio.gyp:*',
@@ skipping 26 matching lines @@
         }],
         ['target_arch=="arm"', {
           'dependencies': [
             '../src/trusted/validator_arm/validator_arm.gyp:*',
           ],
         }, {
           'dependencies': [
             '../src/trusted/validator_x86/validator_x86.gyp:*',
           ],
         }],
+         ['target_arch=="x64" or OS=="win"', {
+           # This library is only for x86-64 for now
+           # (the windows build always includes 64-bit).
+           # We may introduce a dummy shim to make it uniform.
+           'dependencies': [
+#             '../src/untrusted/pnacl_irt_shim/pnacl_irt_shim.gyp:*',
+             '../../ppapi/pnacl_irt_shim.gyp:*',
+           ],
+         }],
         ['OS=="win" and nacl_standalone==0', {
           'dependencies': [
             '../src/trusted/handle_pass/handle_pass.gyp:*',
           ],
         }],
       ],
     },
   ],
 }