diff --git a/python-blosc.changes b/python-blosc.changes
index 8d46002..3fc4e53 100644
--- a/python-blosc.changes
+++ b/python-blosc.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Wed Aug  6 15:16:57 UTC 2014 - schwab@suse.de
+
+- setup.patch: fix use of unknown compiler option
+
 -------------------------------------------------------------------
 Thu Jul 17 09:32:38 UTC 2014 - toddrme2178@gmail.com
 
diff --git a/python-blosc.spec b/python-blosc.spec
index 27254a2..ce621e4 100644
--- a/python-blosc.spec
+++ b/python-blosc.spec
@@ -13,19 +13,22 @@
 # published by the Open Source Initiative.
 
 # Please submit bugfixes or comments via http://bugs.opensuse.org/
+#
+
 
 %define modname blosc
 Name:           python-blosc
 Version:        1.2.4
 Release:        0
-License:        MIT
 Summary:        Blosc data compressor for Python
-Url:            http://www.blosc.org/
+License:        MIT
 Group:          Development/Languages/Python
+Url:            http://www.blosc.org/
 Source:         http://pypi.python.org/packages/source/b/blosc/blosc-%{version}.tar.gz
-BuildRequires:  python-devel
-BuildRequires:  gcc-c++
+Patch:          setup.patch
 BuildRequires:  blosc-devel
+BuildRequires:  gcc-c++
+BuildRequires:  python-devel
 Requires:       blosc-devel
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 %if 0%{?suse_version} && 0%{?suse_version} <= 1110
@@ -38,6 +41,7 @@ Python.
 
 %prep
 %setup -q -n blosc-%{version}
+%patch -p1
 
 %build
 CFLAGS="%{optflags}" python setup.py build_ext --inplace --blosc=%{_prefix}
@@ -51,5 +55,4 @@ python setup.py install --prefix=%{_prefix} --root=%{buildroot}
 %{python_sitearch}/blosc-%{version}-py*.egg-info
 %{python_sitearch}/blosc/
 
-
 %changelog
diff --git a/setup.patch b/setup.patch
new file mode 100644
index 0000000..3fe775c
--- /dev/null
+++ b/setup.patch
@@ -0,0 +1,21 @@
+Index: blosc-1.2.4/setup.py
+===================================================================
+--- blosc-1.2.4.orig/setup.py
++++ blosc-1.2.4/setup.py
+@@ -8,6 +8,7 @@
+ ########################################################################
+ 
+ import sys, os
++import re, platform
+ 
+ from distutils.core import Extension
+ from distutils.core import setup
+@@ -57,7 +58,7 @@ for arg in args:
+         sys.argv.remove(arg)
+ 
+ # Add -msse2 flag for optimizing shuffle in Blosc
+-if os.name == 'posix':
++if os.name == 'posix' and re.match("i.86", platform.machine()) != None:
+     CFLAGS.append("-msse2")
+ 
+ # Blosc sources and headers