diff --git a/ruby-2.3.0-undef-BUILTIN_CHOOSE_EXPR_CONSTANT_P.patch b/ruby-2.3.0-undef-BUILTIN_CHOOSE_EXPR_CONSTANT_P.patch
new file mode 100644
index 0000000..da7e980
--- /dev/null
+++ b/ruby-2.3.0-undef-BUILTIN_CHOOSE_EXPR_CONSTANT_P.patch
@@ -0,0 +1,31 @@
+From 98e565ec78cb4a07ffde8589ac4581fca31e9c17 Mon Sep 17 00:00:00 2001
+From: mrkn <mrkn@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
+Date: Thu, 7 Jan 2016 13:35:32 +0000
+Subject: [PATCH] * ruby.h: undef HAVE_BUILTIN___BUILTIN_CHOOSE_EXPR_CONSTANT_P
+   and HAVE_BUILTIN___BUILTIN_TYPES_COMPATIBLE_P on C++.   [ruby-core:72736]
+ [Bug #11962]
+
+git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53455 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
+---
+ ChangeLog           | 6 ++++++
+ include/ruby/ruby.h | 7 +++++++
+ 2 files changed, 13 insertions(+)
+
+diff --git a/include/ruby/ruby.h b/include/ruby/ruby.h
+index 7aabf5b..82dca14 100644
+--- a/include/ruby/ruby.h
++++ b/include/ruby/ruby.h
+@@ -26,6 +26,13 @@ extern "C" {
+ #include RUBY_EXTCONF_H
+ #endif
+ 
++#if defined(__cplusplus)
++/* __builtin_choose_expr and __builtin_types_compatible aren't available
++ * on C++.  See https://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html */
++# undef HAVE_BUILTIN___BUILTIN_CHOOSE_EXPR_CONSTANT_P
++# undef HAVE_BUILTIN___BUILTIN_TYPES_COMPATIBLE_P
++#endif
++
+ #include "defines.h"
+ 
+ #define NORETURN_STYLE_NEW 1
diff --git a/ruby.spec b/ruby.spec
index 8dadd1c..695e430 100644
--- a/ruby.spec
+++ b/ruby.spec
@@ -21,7 +21,7 @@
 %endif
 
 
-%global release 52
+%global release 53
 %{!?release_string:%global release_string %{?development_release:0.}%{release}%{?development_release:.%{development_release}}%{?dist}}
 
 # The RubyGems library has to stay out of Ruby directory three, since the
@@ -122,6 +122,10 @@ Patch6: ruby-2.1.0-Allow-to-specify-additional-preludes-by-configuratio.patch
 # Use miniruby to regenerate prelude.c.
 # https://bugs.ruby-lang.org/issues/10554
 Patch7: ruby-2.2.3-Generate-preludes-using-miniruby.patch
+# 98e565ec78cb4a07ffde8589ac4581fca31e9c17
+# https://bugs.ruby-lang.org/issues/11962
+# https://bugs.ruby-lang.org/projects/ruby-trunk/repository/revisions/53455
+Patch8: ruby-2.3.0-undef-BUILTIN_CHOOSE_EXPR_CONSTANT_P.patch
 
 Requires: %{name}-libs%{?_isa} = %{version}-%{release}
 Suggests: rubypick
@@ -465,6 +469,7 @@ rm -rf ext/fiddle/libffi*
 %patch5 -p1
 %patch6 -p1
 %patch7 -p1
+%patch8 -p1
 
 # Provide an example of usage of the tapset:
 cp -a %{SOURCE3} .
@@ -941,6 +946,9 @@ make check TESTS="-v $DISABLE_TESTS"
 %{ruby_libdir}/tkextlib
 
 %changelog
+* Fri Jan 15 2016 Mamoru TASAKA <mtasaka@fedoraproject.org> - 2.3.0-53
+- Backport trunk@53455 to make ruby-qt build
+
 * Wed Jan 06 2016 Vít Ondruch <vondruch@redhat.com> - 2.3.0-52
 - Explicitly require RDoc, since weak dependencies are ignored by default.