X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;ds=sidebyside;f=buildscripts%2Fmf-to-table.py;h=1dfb64f4e2462a8531109e549b1e46e984a4cf4e;hb=89bf299597169eeaa5ed7a215b6e808fa849c8cd;hp=4c87408117cd194c885b7aa023647ceedd1bc05c;hpb=2007f11f76fb92b495ac33621539aa481873302a;p=lilypond.git

diff --git a/buildscripts/mf-to-table.py b/buildscripts/mf-to-table.py
index 4c87408117..1dfb64f4e2 100755
--- a/buildscripts/mf-to-table.py
+++ b/buildscripts/mf-to-table.py
@@ -43,6 +43,19 @@ class Char_metric:
 		pass
 
 
+def tfm_checksum (fn):
+	s = open (fn).read ()
+	s = s[ 12 * 2 : ]
+	cs_bytes = s[:4]
+
+	shift = 24
+	cs = 0
+	for b in cs_bytes:
+		cs = cs  + (ord (b) << shift)
+		shift = shift - 8
+
+	return cs
+  
 def parse_logfile (fn):
 	(autolines, deps) = read_log_file (fn)
 	charmetrics = []
@@ -163,7 +176,11 @@ for opt in options:
 
 for filenm in files:
 	(g,m, deps) =  parse_logfile (filenm)
+	cs = tfm_checksum (re.sub ('.log$', '.tfm', filenm))
 	afm = open (afmfile_nm, 'w')
+
+	afm.write ("TfmCheckSum %u\n" % cs) 
+	
 	write_afm_metric (afm, g,m)
 	write_tex_defs (open (texfile_nm, 'w'), g, m)
 	write_deps (open (depfile_nm, 'wb'), deps, [texfile_nm, afmfile_nm])