Testing from 10.5 with Xcode 3 to the latest OS X works with usenm='false' but
not always with usenm='true'
# Since we can build fat, the archname doesn't need the processor type
archname='darwin';
-# nm works.
-usenm='true';
+# nm isn't known to work after Snow Leopard and XCode 4; testing with OS X 10.5
+# and Xcode 3 shows a working nm, but pretending it doesn't work produces no
+# problems.
+usenm='false';
case "$optimize" in
'')