diff --git a/pocl.spec b/pocl.spec
index 0c375f7..9b56520 100644
--- a/pocl.spec
+++ b/pocl.spec
@@ -1,7 +1,7 @@
 Summary:        Portable Computing Language - an OpenCL implementation
 Name:           pocl
 Version:        0.13
-Release:        2%{?dist}
+Release:        3%{?dist}
 
 # The whole code is under MIT
 # except include/utlist.h which is under BSD (and unbundled) and
@@ -13,10 +13,11 @@ Source0:        http://downloads.sourceforge.net/project/pocl/%{name}-%{version}
 # https://github.com/pocl/pocl/issues/318#issuecomment-205864382
 Patch0:         i686-fix.patch
 
-# Only armv7l is supported
-# PPC support is currently broken, due to path problems
-# s390(x) and aarch64 also not supported, so use ExclusiveArch
-ExclusiveArch:  %{ix86} x86_64
+# aarch64 seems to have a build system problem that makes it pass -march=(unknown).
+# ppc64 builds fine, but: 41% tests passed, 64 tests failed out of 108.
+# ppc64le fails with compilation errors.
+# s390(x) clang build still seems to be suffering from bug 1309055.
+ExcludeArch:    aarch64 ppc64 ppc64le s390 s390x
 
 BuildRequires:  cmake
 BuildRequires:  clang clang-devel
@@ -33,7 +34,7 @@ BuildRequires:  uthash-devel
 BuildRequires:  zlib-devel
 BuildRequires:  libedit-devel
 BuildRequires:  glew-devel
-#BuildRequires:	vecmath-devel
+#BuildRequires:  vecmath-devel
 
 Requires:       clang%{?_isa}
 Requires:       opencl-filesystem
@@ -65,13 +66,13 @@ superscalar,...).
 
 
 %package devel
-Summary:	Portable Computing Lanugage development files
-Requires:	%{name}%{?_isa} = %{version}-%{release}
-Requires:	opencl-headers
+Summary:        Portable Computing Language development files
+Requires:       %{name}%{?_isa} = %{version}-%{release}
+Requires:       opencl-headers
 
 
 %description devel
-Portable Computing Lanugage development files
+Portable Computing Language development files.
 
 
 %prep
@@ -87,7 +88,9 @@ pushd build
   %cmake ../ \
     -DENABLE_ICD=1 \
     -DEXTRA_KERNEL_CXX_FLAGS="%{optflags} -std=c++11" \
+%ifarch %{ix86} x86_64
     -DKERNELLIB_HOST_CPU_VARIANTS=distro
+%endif
     # -DENABLE_TESTSUITES=all Requires clBLAS
   %make_build
 popd
@@ -98,8 +101,8 @@ pushd build
 popd
 
 # Unbundle vecmath
-#rm -vf %{buildroot}/%{_libdir}/pocl/vecmath/
-#ln -vs %{_includedir}/vecmath %{buildroot}/%{_libdir}/pocl/vecmath
+#rm -vf %%{buildroot}/%%{_libdir}/pocl/vecmath/
+#ln -vs %%{_includedir}/vecmath %%{buildroot}/%%{_libdir}/pocl/vecmath
 # <visit0r> but you need to run the .py to generate the files under the pocl dir
 
 
@@ -135,6 +138,12 @@ popd
 
 
 %changelog
+* Fri Apr 08 2016 Björn Esser <fedora@besser82.io> - 0.13-3
+- changes as suggested in rhbz #1324438
+- enable builds for %%{arm}
+- fix spelling error in devel-pkg %%description and %%summary
+- fix rpmlint warnings for spec-file and srpm
+
 * Tue Apr 05 2016 Igor Gnatenko <ignatenko@redhat.com> - 0.13-2
 - use -DKERNELLIB_HOST_CPU_VARIANTS=distro
 - add --output-on-failure for ctest invocation