diff --git a/fish.spec b/fish.spec
index 9d8c0ea..d269011 100644
--- a/fish.spec
+++ b/fish.spec
@@ -1,6 +1,6 @@
 Name:                   fish
 Version:                2.2.0
-Release:                9%{?dist}
+Release:                10%{?dist}
 Summary:                A friendly interactive shell
 
 Group:                  System Environment/Shells
@@ -21,6 +21,9 @@ Patch0:                 fish-use-usrbinpython3.patch
 Patch1:                 pr-2393-1.patch
 Patch2:                 pr-2393-2.patch
 
+# Fix C++11 build
+Patch3:                 fish_tests_c++11.patch
+
 %if 0%{?rhel}
 BuildRequires:          python34-devel
 %global __python %{__python34}
@@ -47,6 +50,7 @@ nothing to learn or configure.
 %patch0 -p1
 %patch1 -p2
 %patch2 -p2
+%patch3 -p2
 
 # This is unused.  If we fiddle with Python versions, its presence will
 # be confusing.
@@ -55,7 +59,7 @@ rm create_wajig_completions.py
 
 %build
 %configure --docdir=%{_pkgdocdir}
-make %{?_smp_mflags} all fish_tests
+make all fish_tests
 
 
 %install
@@ -108,6 +112,9 @@ fi
 %{_pkgdocdir}
 
 %changelog
+* Thu Feb 04 2016 luto@kernel.org - 2.2.0-10
+- Fix build on GCC 6
+
 * Wed Feb 03 2016 Fedora Release Engineering <releng@fedoraproject.org> - 2.2.0-9
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_24_Mass_Rebuild
 
diff --git a/fish_tests_c++11.patch b/fish_tests_c++11.patch
new file mode 100644
index 0000000..c46f7e9
--- /dev/null
+++ b/fish_tests_c++11.patch
@@ -0,0 +1,23 @@
+commit 7ff972511a6dd62f9a2623d86595575fb400b879
+Author: Andy Lutomirski <luto@kernel.org>
+Date:   Thu Feb 4 11:52:42 2016 -0800
+
+    fish_tests: Explicitly cast -2 to wchar_t
+    
+    On arm, wchar_t is unsigned, and C++11 and newer disallow implicit
+    narrowing conversions inside braces.  Use an explicit conversion to
+    fix the build on GCC 6 and up, which defaults to C++11.
+
+diff --git a/src/fish_tests.cpp b/src/fish_tests.cpp
+index 90d9dadc30e6..521825516ce3 100644
+--- a/src/fish_tests.cpp
++++ b/src/fish_tests.cpp
+@@ -1154,7 +1154,7 @@ static void test_utf8()
+     wchar_t w4[] = {0x15555, 0xf7777, 0xa};
+     wchar_t w5[] = {0x255555, 0x1fa04ff, 0xddfd04, 0xa};
+     wchar_t w6[] = {0xf255555, 0x1dfa04ff, 0x7fddfd04, 0xa};
+-    wchar_t wb[] = {-2, 0xa, (wchar_t)0xffffffff, 0x0441};
++    wchar_t wb[] = {(wchar_t)-2, 0xa, (wchar_t)0xffffffff, 0x0441};
+     wchar_t wm[] = {0x41, 0x0441, 0x3042, 0xff67, 0x9b0d, 0x2e05da67};
+     wchar_t wb1[] = {0xa, 0x0422};
+     wchar_t wb2[] = {0xd800, 0xda00, 0x41, 0xdfff, 0xa};