solved for me, with this patch:
--- a/src/qxtlibs.pri.orig 2017-11-21 14:57:33.596795862 +0100
+++ b/src/qxtlibs.pri 2017-11-21 14:59:09.153802782 +0100
@@ -9,6 +9,7 @@
INCLUDEPATH = $$QMAKE_INCDIR_QT/$$1 $$INCLUDEPATH
LIB_NAME = $$1
+LIB_NAME = $${LIB_NAME}-qt5
Hi,
I noticed that if I installed the original libqxt version, it would come to a
collision between the library names of libqxt-qt5 and libqxt, because they use
the same library names.
https://martinkg.fedorapeople.org/Packages/GoldenCheetah/libqxt-qt5.spec
