--- pokerth-1.1.2-rc/pokerth_game.pro.orig	2017-08-16 14:24:03.000000000 +0200
+++ pokerth-1.1.2-rc/pokerth_game.pro	2019-05-06 18:44:47.675780451 +0200
@@ -408,11 +408,8 @@
 	INCLUDEPATH += $${PREFIX}/include
 	QMAKE_LIBDIR += lib
 	!android{
-		LIBPATH += $${PREFIX}/lib /opt/gsasl/lib
-		LIB_DIRS = $${PREFIX}/lib \
-			$${PREFIX}/lib64 \
-                        $${PREFIX}/lib/x86_64-linux-gnu \
-			$$system(qmake -query QT_INSTALL_LIBS)
+		LIBPATH += $$system(qmake-qt4 -query QT_INSTALL_LIBS)
+		LIB_DIRS = $$system(qmake-qt4 -query QT_INSTALL_LIBS)
 	}
 	android{
 		LIBPATH += $${PREFIX}/lib/armv7
--- PokerTH-1.1-src/connectivity.pro~	2013-12-22 17:58:01.000000000 +0100
+++ PokerTH-1.1-src/connectivity.pro	2015-06-27 10:48:51.073035818 +0200
@@ -41,7 +41,7 @@
 
 	QMAKE_LIBDIR += lib $${PREFIX}/lib /opt/gsasl/lib
 	INCLUDEPATH += $${PREFIX}/include
-	LIB_DIRS = $${PREFIX}/lib $${PREFIX}/lib64 $$system(qmake -query QT_INSTALL_LIBS)
+	LIB_DIRS = $$system(qmake-qt4 -query QT_INSTALL_LIBS)
 	BOOST_PROGRAM_OPTIONS = boost_program_options boost_program_options-mt
 	BOOST_SYS = boost_system boost_system-mt
 
--- PokerTH-1.1-src/load.pro~	2013-12-22 17:58:01.000000000 +0100
+++ PokerTH-1.1-src/load.pro	2015-06-27 10:49:15.413504240 +0200
@@ -42,7 +42,7 @@
 
 	QMAKE_LIBDIR += lib $${PREFIX}/lib /opt/gsasl/lib
 	INCLUDEPATH += $${PREFIX}/include
-	LIB_DIRS = $${PREFIX}/lib $${PREFIX}/lib64 $$system(qmake -query QT_INSTALL_LIBS)
+	LIB_DIRS = $$system(qmake-qt4 -query QT_INSTALL_LIBS)
 	BOOST_THREAD = boost_thread boost_thread-mt
 	BOOST_PROGRAM_OPTIONS = boost_program_options boost_program_options-mt
 	BOOST_SYS = boost_system boost_system-mt
--- pokerth-1.1.2-rc/pokerth_server.pro.orig	2019-05-06 18:45:52.762554321 +0200
+++ pokerth-1.1.2-rc/pokerth_server.pro	2019-05-06 18:47:54.545658538 +0200
@@ -180,7 +180,7 @@
 	INCLUDEPATH += $${PREFIX}/include
 	# see issue https://github.com/pokerth/pokerth/issues/282
 	INCLUDEPATH += $${PREFIX}/include/libircclient
-	LIB_DIRS = $${PREFIX}/lib $${PREFIX}/lib64 $$system(qmake -query QT_INSTALL_LIBS)
+	LIB_DIRS = $$system(qmake-qt4 -query QT_INSTALL_LIBS)
 	BOOST_FS = boost_filesystem boost_filesystem-mt
 	BOOST_THREAD = boost_thread boost_thread-mt
 	BOOST_PROGRAM_OPTIONS = boost_program_options boost_program_options-mt