Keep around file info for dumped functions and variables without docstrings. src/ChangeLog addition: 2010-04-17 Aidan Kehoe <kehoea@parhasard.net> * doc.c (Fdocumentation): If we have a zero length doc string in DOC, as may happen for undocumented compiled function objects which nonetheless have file information stored, return nil. (Fsnarf_documentation): DOC info existing for compiled functions without docstrings is perfectly legitimate, now the file is also used to store file names. * bytecode.c (set_compiled_function_documentation): Allow this function to set the documentation successfully for compiled function objects that don't currently have documentation; most relevant for functions without docstrings which have file information stored in DOC. lib-src/ChangeLog addition: 2010-04-17 Aidan Kehoe <kehoea@parhasard.net> * make-docfile.c (scan_lisp_file): Even if a function doesn't have a doc string, store its file name in DOC. lisp/ChangeLog addition: 2010-04-17 Aidan Kehoe <kehoea@parhasard.net> * loadup.el (load-history): Be a bit more discriminate in the entries we remove from load-history, only removing those where the information is entirely available from DOC. Fixes problems finding the files that dumped undocumented variables were loaded from, reported by Didier Verna. * loadhist.el (symbol-file): Correct a regexp here, I had forgotten to double a backslash.

--- a/lisp/ChangeLog	Thu Apr 15 20:14:08 2010 -0500
+++ b/lisp/ChangeLog	Sat Apr 17 10:40:03 2010 +0100
@@ -1,3 +1,13 @@
+2010-04-17  Aidan Kehoe  <kehoea@parhasard.net>
+
+	* loadup.el (load-history): Be a bit more discriminate in the
+	entries we remove from load-history, only removing those where the
+	information is entirely available from DOC.
+	Fixes problems finding the files that dumped undocumented
+	variables were loaded from, reported by Didier Verna.
+	* loadhist.el (symbol-file): Correct a regexp here, I had
+	forgotten to double a backslash.
+
 2010-04-15  Aidan Kehoe  <kehoea@parhasard.net>
 
 	* files.el (hack-local-variables-prop-line)