diff --git a/x11-themes/qtcurve/files/qtcurve-1.8.18-glibc-2.23.patch b/x11-themes/qtcurve/files/qtcurve-1.8.18-glibc-2.23.patch
new file mode 100644
index 0000000000000..06a27d5a8854c
--- /dev/null
+++ b/x11-themes/qtcurve/files/qtcurve-1.8.18-glibc-2.23.patch
@@ -0,0 +1,13 @@
+--- a/lib/utils/color.h.orig	2017-02-16 00:55:24.000000000 +0300
++++ b/lib/utils/color.h	2017-02-16 01:00:40.176467232 +0300
+@@ -25,6 +25,10 @@
+ 
+ #include <math.h>
+ 
++#if __cplusplus >= 201103L && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 23))
++#include <cmath>
++#endif
++
+ #include "utils.h"
+ #include "options.h"
+ 
diff --git a/x11-themes/qtcurve/qtcurve-1.8.18-r1.ebuild b/x11-themes/qtcurve/qtcurve-1.8.18-r1.ebuild
index 7eee61a30f2be..7a9617a62d994 100644
--- a/x11-themes/qtcurve/qtcurve-1.8.18-r1.ebuild
+++ b/x11-themes/qtcurve/qtcurve-1.8.18-r1.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2016 Gentoo Foundation
+# Copyright 1999-2017 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=5
@@ -50,6 +50,7 @@ PATCHES=(
 	"${FILESDIR}/${P}-remove_qt_filedialog_api.patch"
 	"${FILESDIR}/${P}-gtk2_segfault.patch"
 	"${FILESDIR}/${P}-std_isnan.patch"
+	"${FILESDIR}/${P}-glibc-2.23.patch"
 	)
 
 pkg_setup() {