Fix incorrect platform-specific include path on i686

llvm.spec

@@ -255,9 +255,11 @@ popd
   --enable-shared \
   --with-c-include-dirs=%{_includedir}:$(find %{_prefix}/lib/gcc/*/* \
       -maxdepth 0 -type d)/include \
+%if %{__isa_bits} == 64
+  --with-cxx-include-32bit-dir=32 \
+%endif
   --with-cxx-include-root=$(find %{_includedir}/c++/* -maxdepth 0 -type d) \
-  --with-cxx-include-arch=%{_arch}-%{_vendor}-%{_os} \
-  --with-cxx-include-32bit-dir=32
+  --with-cxx-include-arch=%{_target_cpu}-%{_vendor}-%{_os} \
 
 # FIXME file this
 # configure does not properly specify libdir
@@ -345,8 +347,10 @@ find examples -name 'Makefile' | xargs -0r rm -f
 
 
 %check
-make check
-(cd tools/clang && make test)
+# the Koji build server does not seem to have enough RAM
+# for the default 16 threads
+make check LIT_ARGS="-s -v -j8"
+make -C tools/clang/test
 
 
 %post libs -p /sbin/ldconfig
@@ -464,7 +468,8 @@ exit 0
 * Tue Aug  2 2011 Michel Salim <salimma@fedoraproject.org> - 2.8-12
 - Depend on libffi to allow the LLVM interpreter to call external functions
 - Build with RTTI enabled, needed by e.g. Rubinius (# 722714)
-- Fix multilib installation
+- Fix multilib installation (# 699416)
+- Fix incorrect platform-specific include path on i686
 
 * Tue Apr 26 2011 Adam Jackson <ajax@redhat.com> 2.8-11
 - llvm-2.8-disable-avx.patch: Disable AVX code generation. (#699896)