Daniel Jahre:

package/sirkull/fftw3/fftw3.conf

@@ -26,6 +26,10 @@ if [ $arch_machine = i686 -o $arch_machine = i586 -o $arch_machine = i486 -o $ar
 	echo "Enable i386 hacks"
 fi
 
+if [ $ROCKCFG_DEFAULT_CC="gcc40" ]; then
+	export F77="/usr/bin/gfortran-40"
+fi
+
 var_append confopt " " "--enable-threads"
 var_append confopt " " "--enable-float"