--- Portfile.orig       2009-11-05 14:58:02.000000000 +0100
+++ Portfile    2009-11-05 14:57:35.000000000 +0100
@@ -104,7 +104,9 @@
     # Get some system specific variables for maximum optimization
     set cpufreq [expr {[exec sysctl -n hw.cpufrequency]/1000000}]
     ui_debug "Setting CPU Frequency for: ${cpufreq}"
+    platform darwin i386 {
     configure.args-append -D c -DPentiumCPS=${cpufreq}
+    }

     # first do a 'fake configure' of atlas so we get optimized lapack libraries
     ui_debug "performing fake configure of atlas for optimized lapack"