diff --git a/QMimeDatabase-use-QElapsedTimer.patch b/QMimeDatabase-use-QElapsedTimer.patch
new file mode 100644
index 0000000..865023c
--- /dev/null
+++ b/QMimeDatabase-use-QElapsedTimer.patch
@@ -0,0 +1,56 @@
+From 3426ce9b8e62e8d76db0d9cc2899113c0c3cb073 Mon Sep 17 00:00:00 2001
+From: David Faure <david.faure@kdab.com>
+Date: Mon, 27 Jul 2015 00:22:11 +0200
+Subject: [PATCH 1/1] QMimeDatabase: use QElapsedTimer instead of
+ QDateTime::currentDateTime()
+
+This reduces the number of syscalls greatly, by avoiding the timezone
+conversion every time.
+
+Change-Id: I39a54def4b45f25c6e037ced6943b05ddc749c9d
+---
+ src/corelib/mimetypes/qmimeprovider.cpp | 5 ++---
+ src/corelib/mimetypes/qmimeprovider_p.h | 3 ++-
+ 2 files changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/src/corelib/mimetypes/qmimeprovider.cpp b/src/corelib/mimetypes/qmimeprovider.cpp
+index cca9a40b9f28e1b45a6e5e0172f512c5880a10d6..9f6bdb30981f4f236ef422cfd16f6c1cd38c643f 100644
+--- a/src/corelib/mimetypes/qmimeprovider.cpp
++++ b/src/corelib/mimetypes/qmimeprovider.cpp
+@@ -77,10 +77,9 @@ Q_CORE_EXPORT int qmime_secondsBetweenChecks = 5; // exported for the unit test
+ 
+ bool QMimeProviderBase::shouldCheck()
+ {
+-    const QDateTime now = QDateTime::currentDateTime();
+-    if (m_lastCheck.isValid() && m_lastCheck.secsTo(now) < qmime_secondsBetweenChecks)
++    if (m_lastCheck.isValid() && m_lastCheck.elapsed() < qmime_secondsBetweenChecks)
+         return false;
+-    m_lastCheck = now;
++    m_lastCheck.start();
+     return true;
+ }
+ 
+diff --git a/src/corelib/mimetypes/qmimeprovider_p.h b/src/corelib/mimetypes/qmimeprovider_p.h
+index 027fddd2c81ddb52fb3c383edfeda3a03f9ccaac..e4bc55a1a2deb5f4d030f451dd97729c2ca95bb8 100644
+--- a/src/corelib/mimetypes/qmimeprovider_p.h
++++ b/src/corelib/mimetypes/qmimeprovider_p.h
+@@ -48,6 +48,7 @@
+ #include <QtCore/qdatetime.h>
+ #include "qmimedatabase_p.h"
+ #include <QtCore/qset.h>
++#include <QtCore/qelapsedtimer.h>
+ 
+ QT_BEGIN_NAMESPACE
+ 
+@@ -74,7 +75,7 @@ public:
+     QMimeDatabasePrivate *m_db;
+ protected:
+     bool shouldCheck();
+-    QDateTime m_lastCheck;
++    QElapsedTimer m_lastCheck;
+ };
+ 
+ /*
+-- 
+2.4.6
+
diff --git a/libqt5-qtbase.changes b/libqt5-qtbase.changes
index 131b88d..7b6076d 100644
--- a/libqt5-qtbase.changes
+++ b/libqt5-qtbase.changes
@@ -1,3 +1,16 @@
+-------------------------------------------------------------------
+Tue Jul 28 21:39:35 UTC 2015 - hrvoje.senjan@gmail.com
+
+- Added QMimeDatabase-use-QElapsedTimer.patch: reduces the number
+  of syscalls greatly, by avoiding the timezone conversion every time;
+  massively improves kbuildsycoca5 speed
+
+-------------------------------------------------------------------
+Sun Jul 26 15:30:15 UTC 2015 - hrvoje.senjan@gmail.com
+
+- Fix the suse_version condition checks - treat Leap equally as 13.2
+  wrt which system libs shall be used
+
 -------------------------------------------------------------------
 Tue Jun  9 19:04:26 UTC 2015 - hrvoje.senjan@gmail.com
 
diff --git a/libqt5-qtbase.spec b/libqt5-qtbase.spec
index 735fb5c..fb2b241 100644
--- a/libqt5-qtbase.spec
+++ b/libqt5-qtbase.spec
@@ -71,6 +71,7 @@ Patch2012:      0003-Fix-centering-dialogs.patch
 Patch2013:      0004-xcb-Set-_NET_WM_WINDOW_TYPE-from-a-single-place.patch
 Patch2014:      0005-Restore-documented-behavior-for-the-WA_X11NetWmWindo.patch
 Patch2015:      0006-xcb-set-SM_CLIENT_ID-property.patch
+Patch2016:      QMimeDatabase-use-QElapsedTimer.patch
 BuildRequires:  alsa-devel
 BuildRequires:  cups-devel
 BuildRequires:  gcc-c++
@@ -111,12 +112,12 @@ BuildRequires:  xz
 BuildRequires:  pkgconfig(glib-2.0)
 BuildRequires:  pkgconfig(gtk+-2.0)
 BuildRequires:  pkgconfig(libudev)
-%if 0%{?suse_version} >= 1320
+%if 0%{?suse_version} > 1310
 BuildRequires:  pkgconfig(harfbuzz)
 %endif
 BuildRequires:  pkgconfig(ice)
 BuildRequires:  pkgconfig(sm)
-%if 0%{?suse_version} >= 1315
+%if 0%{?suse_version} > 1310
 BuildRequires:  pkgconfig(xkbcommon) >= 0.4.1
 BuildRequires:  pkgconfig(xkbcommon-x11) >= 0.4.1
 %else
@@ -167,6 +168,7 @@ handling.
 %patch2013 -p1
 %patch2014 -p1
 %patch2015 -p1
+%patch2016 -p1
 
 # be sure not to use them
 rm -r src/3rdparty/{libjpeg,freetype,libpng,zlib}
@@ -759,7 +761,7 @@ echo yes | ./configure $platform \
 	-system-libjpeg \
 	-openssl-linked \
 	-system-libpng \
-%if 0%{?suse_version} >= 1320
+%if 0%{?suse_version} > 1310
 	-system-harfbuzz \
 %endif
 	-fontconfig \