Windows compat fixes.

src/xenia/string.cc

@@ -0,0 +1,33 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2013 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#include <xenia/string.h>
+
+#include <xenia/common.h>
+
+
+#if XE_PLATFORM(WIN32)
+
+char* xestrcasestra(const char* str, const char* substr) {
+  const size_t len = xestrlena(substr);
+  while (*str) {
+    if (!_strnicmp(str, substr, len)) {
+      break;
+    }
+    str++;
+  }
+
+  if (*str) {
+    return (char*)str;
+  } else {
+    return NULL;
+  }
+}
+
+#endif  // WIN32