Add a dependency on clobber to the boot target. Now, if you run "make
-f Makefile.pre.in boot", all traces of previous runs are removed.
diff --git a/Misc/Makefile.pre.in b/Misc/Makefile.pre.in
index dcc57f2..e9caa80 100644
--- a/Misc/Makefile.pre.in
+++ b/Misc/Makefile.pre.in
@@ -245,7 +245,7 @@
echo "/^BASESETUP=/s%=.*%= $(BASESETUP)%" >>sedscript
# Bootstrap target
-boot:
+boot: clobber
VERSION=`python -c "import sys; print sys.version[:3]"`; \
installdir=`python -c "import sys; print sys.prefix"`; \
exec_installdir=`python -c "import sys; print sys.exec_prefix"`; \