diff --git a/fftw.spec b/fftw.spec
index 2cddb20..e41be07 100644
--- a/fftw.spec
+++ b/fftw.spec
@@ -1,6 +1,6 @@
 Name:           fftw
 Version:        3.3
-Release:        3%{?dist}
+Release:        4%{?dist}
 Summary:        A Fast Fourier Transform library
 Group:          System Environment/Libraries
 License:        GPLv2+
@@ -17,11 +17,13 @@ BuildRequires:  gcc-gfortran
 %global openmp 1
 %endif
 
+%global quad 0
 # Quad precision support only available with gcc >= 4.6
 %if 0%{?fedora} >= 15
+# and only on these arches
+%ifarch %{ix86} x86_64 ia64
 %global quad 1
-%else
-%global quad 0
+%endif
 %endif
 
 # For check phase
@@ -252,6 +254,9 @@ fi
 %{_libdir}/libfftw3*.a
 
 %changelog
+* Tue Oct 11 2011 Dan Horák <dan[at]danny.cz> - 3.3-4
+- libquadmath exists only on x86/x86_64 and ia64
+
 * Mon Oct 10 2011 Rex Dieter <rdieter@fedoraproject.org> 3.3-3
 - -devel: Provides: fftw3-devel (#744758)
 - -static: Provides: fftw3-static