Fixing r9262 for shared library build.

Review URL: http://codereview.chromium.org/7888013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9263 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/d8.cc

@@ -1160,10 +1160,11 @@ bool Shell::SetOptions(int argc, char* argv[]) {
 #endif  // V8_SHARED
       options.num_isolates++;
     } else if (strcmp(argv[i], "-p") == 0) {
-      options.num_parallel_files++;
 #ifdef V8_SHARED
       printf("D8 with shared library does not support multi-threading\n");
       return false;
+#else
+      options.num_parallel_files++;
 #endif  // V8_SHARED
     }
 #ifdef V8_SHARED