GetProcAddressA is available only on WinCE

As Roumen pointed out
"After recent  commits I count not link build for mingw* host  as
GetProcAddressA is missing."

  Looking around a bit it seems you are right:
    http://voidnish.wordpress.com/2005/06/14/getprocaddress-in-unicode-builds/
except it was introduced in Windows CE
    http://msdn.microsoft.com/en-us/library/ms885634.aspx

xmlmodule.c

@@ -334,7 +334,14 @@ xmlModulePlatformClose(void *handle)
 static int
 xmlModulePlatformSymbol(void *handle, const char *name, void **symbol)
 {
+#ifdef _WIN32_WCE
+    /*
+     * GetProcAddressA seems only available on WinCE
+     */
     *symbol = GetProcAddressA(handle, name);
+#else
+    *symbol = GetProcAddress(handle, name);
+#endif
     return (NULL == *symbol) ? -1 : 0;
 }