File pkgconfig.patch of Package libqt5-qtpbfimageformat

diff --git pbfplugin.pro pbfplugin.pro
index 49e9875..8ba7e8e 100644
--- pbfplugin.pro
+++ pbfplugin.pro
@@ -39,8 +39,8 @@ RESOURCES += pbfplugin.qrc
 DEFINES += QT_NO_DEPRECATED_WARNINGS
 
 unix:!macx{
-    LIBS += -lprotobuf-lite \
-        -lz
+    CONFIG += link_pkgconfig
+    PKGCONFIG += protobuf-lite zlib
 }
 win32 {
     INCLUDEPATH += $$PROTOBUF/include \