one gcc6 FTBFS fix

0001-Fix-building-on-Linux-with-clang-libc.patch

@@ -0,0 +1,30 @@
+From 3a3bbc39d5cba8d77c89f6652c5b9c24c9980497 Mon Sep 17 00:00:00 2001
+From: Armin K <krejzi@email.com>
+Date: Sun, 13 Mar 2016 21:11:44 +0100
+Subject: [PATCH] Fix building on Linux with clang/libc++
+
+When using libc++, cmath isn't being pulled in,
+resulting in
+
+error: no member named 'sqrt' in namespace 'std'
+
+Adding explicit include fixes it
+---
+ kcms/touchpad/src/backends/x11/synapticstouchpad.cpp | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/kcms/touchpad/src/backends/x11/synapticstouchpad.cpp b/kcms/touchpad/src/backends/x11/synapticstouchpad.cpp
+index d4742bf..eb222ae 100644
+--- a/kcms/touchpad/src/backends/x11/synapticstouchpad.cpp
++++ b/kcms/touchpad/src/backends/x11/synapticstouchpad.cpp
+@@ -46,6 +46,7 @@
+  *      Peter Osterlund (petero2@telia.com)
+  */
+ 
++#include <cmath>
+ #include <QDebug>
+ 
+ #include "synapticstouchpad.h"
+-- 
+2.7.3
+

plasma-desktop.spec

@@ -29,7 +29,8 @@ Patch102: plasma-desktop-fedora_layout.patch
 
 ## upstream patches
 
-## upstream patches
+## upstream patches (master branch)
+Patch21: 0001-Fix-building-on-Linux-with-clang-libc.patch
 
 ## upstreamable patches
 # missing '#include <config-workspace.h>' means PK never used
@@ -165,6 +166,7 @@ BuildArch: noarch
 %prep
 %setup -q
 
+%patch21 -p1 -b .0001
 %patch50 -p1 -b .PackageKit
 
 %if 0%{?fedora} > 22