Qt5: Be sure to use the rcc/moc/tools of Qt5

Ref #8532

configure.ac

@@ -3688,16 +3688,25 @@ AC_ARG_ENABLE(qt, [
   ])
 ])
 AS_IF([test "${enable_qt}" != "no"], [
-  PKG_CHECK_MODULES([QT], [Qt5Core >= 5 Qt5Widgets Qt5Gui],, [
-    PKG_CHECK_MODULES([QT], [QtCore QtGui >= 4.6.0],, [
-      AS_IF([test -n "${enable_qt}"],[
-        AC_MSG_ERROR([${QT_PKG_ERRORS}.])
-      ],[
-        AC_MSG_WARN([${QT_PKG_ERRORS}.])
+  PKG_CHECK_MODULES([QT], [Qt5Core >= 5 Qt5Widgets Qt5Gui], [
+      QT_PATH="$(eval $PKG_CONFIG --variable=exec_prefix QtCore)"
+      AC_PATH_PROGS(MOC, [moc-qt5 moc], moc, [${QT_PATH}/bin ${CONTRIB_DIR}/bin])
+      AC_PATH_PROG(RCC, [rcc-qt5 rcc], rcc, [${QT_PATH}/bin ${CONTRIB_DIR}/bin])
+      AC_PATH_PROGS(UIC, [uic-qt5 uic], uic, [${QT_PATH}/bin ${CONTRIB_DIR}/bin])
+    ], [
+      PKG_CHECK_MODULES([QT], [QtCore QtGui >= 4.6.0],, [
+        AS_IF([test -n "${enable_qt}"],[
+          AC_MSG_ERROR([${QT_PKG_ERRORS}.])
+        ],[
+          AC_MSG_WARN([${QT_PKG_ERRORS}.])
+        ])
+        enable_qt="no"
       ])
-      enable_qt="no"
+      QT_PATH="$(eval $PKG_CONFIG --variable=exec_prefix QtCore)"
+      AC_PATH_PROGS(MOC, [moc-qt4 moc], moc, [${QT_PATH}/bin ${CONTRIB_DIR}/bin])
+      AC_PATH_PROG(RCC, rcc, rcc, [${QT_PATH}/bin ${CONTRIB_DIR}/bin])
+      AC_PATH_PROGS(UIC, [uic-qt4 uic], uic, [${QT_PATH}/bin ${CONTRIB_DIR}/bin])
     ])
-  ])
 ])
 AS_IF([test "${enable_qt}" != "no"], [
   VLC_ADD_PLUGIN([qt4])
@@ -3722,10 +3731,6 @@ AS_IF([test "${enable_qt}" != "no"], [
   VLC_RESTORE_FLAGS
   AC_LANG_POP([C++])
 
-  QT_PATH="$(eval $PKG_CONFIG --variable=exec_prefix QtCore)"
-  AC_PATH_PROGS(MOC, [moc-qt4 moc], moc, [${QT_PATH}/bin ${CONTRIB_DIR}/bin])
-  AC_PATH_PROG(RCC, rcc, rcc, [${QT_PATH}/bin ${CONTRIB_DIR}/bin])
-  AC_PATH_PROGS(UIC, [uic-qt4 uic], uic, [${QT_PATH}/bin ${CONTRIB_DIR}/bin])
 ])
 AM_CONDITIONAL(ENABLE_QT4, [test "$enable_qt" != "no"])