Fixes ignored qt 4.8 codecs path on windows when configuring with --with-qt-libdir

src/m4/bitcoin_qt.m4

@@ -112,11 +112,7 @@ AC_DEFUN([BITCOIN_QT_CONFIGURE],[
       AC_DEFINE(QT_STATICPLUGIN, 1, [Define this symbol if qt plugins are static])
       if test x$qt_plugin_path != x; then
         QT_LIBS="$QT_LIBS -L$qt_plugin_path/accessible"
-        if test x$bitcoin_qt_got_major_vers == x5; then
-          QT_LIBS="$QT_LIBS -L$qt_plugin_path/platforms"
-        else
-          QT_LIBS="$QT_LIBS -L$qt_plugin_path/codecs"
-        fi
+        QT_LIBS="$QT_LIBS -L$qt_plugin_path/platforms"
       fi
       if test x$use_pkgconfig = xyes; then
         PKG_CHECK_MODULES([QTPLATFORM], [Qt5PlatformSupport], [QT_LIBS="$QTPLATFORM_LIBS $QT_LIBS"])
@@ -141,6 +137,10 @@ AC_DEFUN([BITCOIN_QT_CONFIGURE],[
   else
     if test x$TARGET_OS == xwindows; then
       AC_DEFINE(QT_STATICPLUGIN, 1, [Define this symbol if qt plugins are static])
+      if test x$qt_plugin_path != x; then
+        QT_LIBS="$QT_LIBS -L$qt_plugin_path/accessible"
+        QT_LIBS="$QT_LIBS -L$qt_plugin_path/codecs"
+      fi
       _BITCOIN_QT_CHECK_STATIC_PLUGINS([
          Q_IMPORT_PLUGIN(qcncodecs)
          Q_IMPORT_PLUGIN(qjpcodecs)