+# if 64-bit capable Intel, then also run all test cases for 64-bits
+if [ `sysctl -n hw.optional.x86_64` = "1" ]
+then
+ echo ""
+ echo " * * * Running all unit tests for 64-bits * * *"
+
+ # make clean
+ ../bin/make-recursive.pl clean > /dev/null
+
+ # build x86_64 architecture
+ ../bin/make-recursive.pl ARCH="-arch x86_64" | ../bin/result-filter.pl
+fi