diff -rc v6.3/Makefile v6.4/Makefile
*** v6.3/Makefile	Mon Dec  1 14:20:31 2008
--- v6.4/Makefile	Mon Dec  1 22:58:52 2008
***************
*** 1,33 ****
  all:	Pub/.copied
  
! VERNUM=6.3
! PREVNUM=6.2
  VER=v${VERNUM}
  PREV=v${PREVNUM}
  
  SOURCES=makeindex.php.txt hilbert.py hilbert_test.py hilbert_pic.py \
  	Makefile
  
! DIFFS=v4_${VER}_diff.txt ${PREV}_${VER}_diff.txt 
  
! PUBFILES=${SOURCES} ${DIFFS} index.html hilbert_thumb.gif hilbert_pic.pdf
  
! v4_${VER}_diff.txt:	old/${VER}/.copied
! 	(cd old; diff -rc v4 ${VER} >../v4_${VER}_diff.txt; true)
  
! ${PREV}_${VER}_diff.txt:	old/${VER}/.copied
! 	(cd old; diff -rc ${PREV} ${VER} >../${PREV}_${VER}_diff.txt; true)
  
  old/${VER}/.copied:	${SOURCES}
  	cp ${SOURCES} old/${VER}
  	touch old/${VER}/.copied
  
! Pub/.copied:	${PUBFILES}
  	cp ${PUBFILES} Pub
  	touch Pub/.copied
  
  index.html:	${SOURCES} ${DIFFS}
! 	rm -f index.html
  	php makeindex.php.txt ${VERNUM} >index.html
  	chmod a-w index.html
  
--- 1,46 ----
  all:	Pub/.copied
  
! VERNUM=6.4
! PREVNUM=6.3
  VER=v${VERNUM}
  PREV=v${PREVNUM}
  
  SOURCES=makeindex.php.txt hilbert.py hilbert_test.py hilbert_pic.py \
  	Makefile
  
! MOORE=moore/index.html moore/hilbert.c moore/hilbert.h
  
! DIFFS=old/v4_${VER}_diff.txt old/${PREV}_${VER}_diff.txt
  
! OLDPUB=${DIFFS} old/makeindex.php.txt old/index.html
  
! PUBFILES=${SOURCES} index.html hilbert_thumb.gif hilbert_pic.pdf
! 
! old/v4_${VER}_diff.txt:	old/${VER}/.copied
! 	(cd old; diff -rc v4 ${VER} >v4_${VER}_diff.txt; true)
! 
! old/${PREV}_${VER}_diff.txt:	old/${VER}/.copied
! 	(cd old; diff -rc ${PREV} ${VER} >${PREV}_${VER}_diff.txt; true)
  
  old/${VER}/.copied:	${SOURCES}
+ 	mkdir old/${VER} || true
  	cp ${SOURCES} old/${VER}
  	touch old/${VER}/.copied
  
! old/index.html: ${DIFFS} old/makeindex.php.txt
! 	(cd old; chmod u+w index.html; php makeindex.php.txt ${VER} >index.html )
! 	chmod a-w old/index.html
! 
! Pub/.copied:	${PUBFILES} ${OLDPUB} ${MOORE}
! 	chmod u+w Pub/index.html Pub/old/index.html
  	cp ${PUBFILES} Pub
+ 	cp ${OLDPUB} Pub/old
+ 	cp ${MOORE} Pub/moore
  	touch Pub/.copied
  
  index.html:	${SOURCES} ${DIFFS}
! 	chmod u+w index.html
! 	touch .lastchange # sensed by makeindex.php.txt
  	php makeindex.php.txt ${VERNUM} >index.html
  	chmod a-w index.html
  
diff -rc v6.3/makeindex.php.txt v6.4/makeindex.php.txt
*** v6.3/makeindex.php.txt	Mon Dec  1 14:20:31 2008
--- v6.4/makeindex.php.txt	Mon Dec  1 22:58:52 2008
***************
*** 370,376 ****
  "makeindex.php.txt" => "PHP source for this page (inserts this listing).",
  "hilbert_pic.pdf" => "Exploded views of 3D Hilbert walks.",
  "hilbert_pic.py" => "Python/pdfgen code that generates hilbert_pic.pdf",
! "old" => "differences between previous versions"
  );
  
  $subst_url = array(
--- 370,376 ----
  "makeindex.php.txt" => "PHP source for this page (inserts this listing).",
  "hilbert_pic.pdf" => "Exploded views of 3D Hilbert walks.",
  "hilbert_pic.py" => "Python/pdfgen code that generates hilbert_pic.pdf",
! "old" => "differences from previous versions"
  );
  
  $subst_url = array(
***************
*** 392,398 ****
     else                              $url = $file;
     if( $line[0]=="d" ) {
        echo "<code><a href=\"$url/index.html\"\n>$file/</a></code>";
!       echo '</td><td valign="top">';
     } else {
        echo "<code><a href=\"$url\"\n>$file</a></code>";
        echo "</td><td align=\"right\" valign=\"top\"><code>(${size}K)</code>";
--- 392,398 ----
     else                              $url = $file;
     if( $line[0]=="d" ) {
        echo "<code><a href=\"$url/index.html\"\n>$file/</a></code>";
!       echo '</td><td align=\"right\" valign=\"top\"><code>(dir)</code>';
     } else {
        echo "<code><a href=\"$url\"\n>$file</a></code>";
        echo "</td><td align=\"right\" valign=\"top\"><code>(${size}K)</code>";
***************
*** 496,502 ****
  <a id="Moore">
  [Moore]
  D. Moore,
! <a href="http://web.archive.org/web/20050212162158/http://www.caam.rice.edu/~dougm/twiddle/Hilbert/"> Fast Hilbert Curves in C, without Recursion</a>
  <p>
  
  <a id="Thomas">
--- 496,503 ----
  <a id="Moore">
  [Moore]
  D. Moore,
! <a href="http://web.archive.org/web/20050212162158/http://www.caam.rice.edu/~dougm/twiddle/Hilbert/"> Fast Hilbert Curves in C, without Recursion</a> 
! [<a href="moore/index.html">cached</a>]
  <p>
  
  <a id="Thomas">
***************
*** 512,518 ****
  <p>
   
  <hr>
! Last change <?php echo date("d F Y.", filemtime( "datefile" )) ?><br>
  <br>
  --<a href="mailto:sw_at_tiac_remove-this_dot_net">Steve Witham</a><br>
  Up to my <a href="http://www.tiac.net/~sw">home page</a>.
--- 513,519 ----
  <p>
   
  <hr>
! Last change <?php echo date("d F Y.", filemtime( ".lastchange" )) ?><br>
  <br>
  --<a href="mailto:sw_at_tiac_remove-this_dot_net">Steve Witham</a><br>
  Up to my <a href="http://www.tiac.net/~sw">home page</a>.