diff --git a/ruby-1.9.3-mkmf-verbose.patch b/ruby-1.9.3-mkmf-verbose.patch
new file mode 100644
index 0000000..7da66c8
--- /dev/null
+++ b/ruby-1.9.3-mkmf-verbose.patch
@@ -0,0 +1,11 @@
+--- ruby-1.9.3-p0/lib/mkmf.rb.debug	2011-08-11 15:07:37.000000000 +0900
++++ ruby-1.9.3-p0/lib/mkmf.rb	2012-01-29 21:34:17.000000000 +0900
+@@ -1638,7 +1638,7 @@
+ SHELL = /bin/sh
+ 
+ # V=0 quiet, V=1 verbose.  other values don't work.
+-V = 0
++V = 1
+ Q1 = $(V:1=)
+ Q = $(Q1:0=@)
+ n=$(NULLCMD)
diff --git a/ruby.spec b/ruby.spec
index a65192a..5b4e22b 100644
--- a/ruby.spec
+++ b/ruby.spec
@@ -51,7 +51,7 @@
 Summary: An interpreter of object-oriented scripting language
 Name: ruby
 Version: %{ruby_version_patch_level}
-Release: 6%{?dist}
+Release: 7%{?dist}
 Group: Development/Languages
 License: Ruby or BSD
 URL: http://ruby-lang.org/
@@ -89,6 +89,8 @@ Patch10: ruby-1.9.3-prevent-optimizing-sp.patch
 # Fixes json encoding failures when build with GCC 4.7.
 # http://bugs.ruby-lang.org/issues/5888
 Patch11: ruby-1.9.3-fix-json-parser.patch
+# Make mkmf verbose by default
+Patch12: ruby-1.9.3-mkmf-verbose.patch
 
 Requires: %{name}-libs%{?_isa} = %{version}-%{release}
 Requires: ruby(rubygems) >= %{rubygems_version}
@@ -316,6 +318,7 @@ Tcl/Tk interface for the object-oriented scripting language Ruby.
 %patch9 -p1
 %patch10
 %patch11 -p1
+%patch12 -p1
 
 %build
 autoconf
@@ -701,6 +704,9 @@ make check
 %{ruby_libdir}/tkextlib
 
 %changelog
+* Sun Jan 29 2012 Mamoru Tasaka <mtasaka@fedoraprpject.org> - 1.9.3.0-7
+- Make mkmf.rb verbose by default
+
 * Thu Jan 26 2012 Vít Ondruch <vondruch@redhat.com> - 1.9.3.0-6
 - Relax dependencies to allow external updates of bundled gems.