Disable NEON on ARM (we don't enable by default, needs runtime detection)

fftw.spec

@@ -148,12 +148,13 @@ for((i=0;i<2;i++)); do
 done
 %endif
 
-%ifarch %{arm}
-# Compile support for NEON instructions
-for((i=0;i<2;i++)); do
- prec_flags[i]+=" --enable-neon"
-done
-%endif
+# No NEON run time detection, not all ARM SoCs have NEON
+#%ifarch %{arm}
+## Compile support for NEON instructions
+#for((i=0;i<2;i++)); do
+# prec_flags[i]+=" --enable-neon"
+#done
+#%endif
 
 #%ifarch ppc ppc64
 ## Compile support for Altivec instructions
@@ -286,6 +287,7 @@ fi
 - SSE2 only arrived with P-4
 - https://fedoraproject.org/wiki/Features/F12X86Support
 - Fix ARM macro
+- Disable NEON on ARM (we don't enable by default, needs runtime detection)
 
 * Thu Jul 03 2014 Conrad Meyer <cemeyer@uw.edu> - 3.3.4-3
 - Build with --enable-avx (rhbz# 1114964)