Bernhard Fischer sent a patch to make "make sizes" work when building in
another output directory.
diff --git a/Makefile b/Makefile
index 0358672..c96c737 100644
--- a/Makefile
+++ b/Makefile
@@ -154,8 +154,9 @@
$(top_srcdir)/testsuite/runtest
sizes:
- rm -f busybox
- make STRIPCMD=/bin/true
+ -rm -f busybox
+ $(MAKE) top_srcdir=$(top_srcdir) top_builddir=$(top_builddir) \
+ -f $(top_srcdir)/Makefile STRIPCMD=/bin/true
nm --size-sort busybox
# Documentation Targets
doc: docs/busybox.pod docs/BusyBox.txt docs/BusyBox.1 docs/BusyBox.html