build: use qt5LibraryTarget() with Qt >= 5.4.2

qtbase commit 67289d0dfa64bf805c7ff2e455611affaea28558 restored
qtLibraryTarget() to its original behavior, and introduced a new
function qt5LibraryTarget() with the new behavior. Therefore we
have to use the new function if available, so that Qt4 and Qt5
libraries can be installed side-by-side.

Change-Id: Iff644bdc48984eb48c6fac2025c203502dfb2f79
Reviewed-by: Oswald Buddenhagen <[email protected]>

Author: Pesa

qtlockedfile/common.pri

@@ -1,6 +1,14 @@
 exists(config.pri):infile(config.pri, SOLUTIONS_LIBRARY, yes): CONFIG += qtlockedfile-uselib
+
 TEMPLATE += fakelib
-QTLOCKEDFILE_LIBNAME = $$qtLibraryTarget(QtSolutions_LockedFile-head)
+greaterThan(QT_MAJOR_VERSION, 5)|\
+  if(equals(QT_MAJOR_VERSION, 5):greaterThan(QT_MINOR_VERSION, 4))|\
+  if(equals(QT_MAJOR_VERSION, 5):equals(QT_MINOR_VERSION, 4):greaterThan(QT_PATCH_VERSION, 1)) {
+    QTLOCKEDFILE_LIBNAME = $$qt5LibraryTarget(QtSolutions_LockedFile-head)
+} else {
+    QTLOCKEDFILE_LIBNAME = $$qtLibraryTarget(QtSolutions_LockedFile-head)
+}
 TEMPLATE -= fakelib
+
 QTLOCKEDFILE_LIBDIR = $$PWD/lib
 unix:qtlockedfile-uselib:!qtlockedfile-buildlib:QMAKE_RPATHDIR += $$QTLOCKEDFILE_LIBDIR

qtsingleapplication/common.pri

@@ -1,6 +1,14 @@
 exists(config.pri):infile(config.pri, SOLUTIONS_LIBRARY, yes): CONFIG += qtsingleapplication-uselib
+
 TEMPLATE += fakelib
-QTSINGLEAPPLICATION_LIBNAME = $$qtLibraryTarget(QtSolutions_SingleApplication-head)
+greaterThan(QT_MAJOR_VERSION, 5)|\
+  if(equals(QT_MAJOR_VERSION, 5):greaterThan(QT_MINOR_VERSION, 4))|\
+  if(equals(QT_MAJOR_VERSION, 5):equals(QT_MINOR_VERSION, 4):greaterThan(QT_PATCH_VERSION, 1)) {
+    QTSINGLEAPPLICATION_LIBNAME = $$qt5LibraryTarget(QtSolutions_SingleApplication-head)
+} else {
+    QTSINGLEAPPLICATION_LIBNAME = $$qtLibraryTarget(QtSolutions_SingleApplication-head)
+}
 TEMPLATE -= fakelib
+
 QTSINGLEAPPLICATION_LIBDIR = $$PWD/lib
 unix:qtsingleapplication-uselib:!qtsingleapplication-buildlib:QMAKE_RPATHDIR += $$QTSINGLEAPPLICATION_LIBDIR