[Bug-AUCTeX] Error management and master files

[Fabrice Ben Hamouda]

Hi,

If we use a master file (for example "main.tex") with an input file in 
another folder (for example "tex/intro.tex"), and if we compile our 
project, while in buffer "main.tex", and then go to next error 
(TeX-next-error), while in buffer "tex/intro.tex", we get the following 
error message:
"no buffers contain error message locations".

The problem seems to be that "TeX-active-buffer" fails in 
"tex/intro.tex", because "TeX-process-buffer" is not run within buffer 
"tex/intro.tex" ("abbreviate-file-name" called in 
"TeX-process-buffer-name" does not use the correct parent folder).

Here is a patch:

------------------

--- a/tex-buf.el    2012-11-26 20:56:21.000000000 +0100
+++ b/tex-buf.el    2013-09-06 21:42:11.080853299 +0200
@@ -273,9 +273,8 @@
   (interactive "P")
   (if (null (TeX-active-buffer))
       (next-error reparse)
-    (funcall (TeX-process-get-variable (with-current-buffer 
TeX-command-buffer
-                     (TeX-active-master))
-                       'TeX-parse-function)
+    (funcall (with-current-buffer TeX-command-buffer
+           (TeX-process-get-variable (TeX-active-master) 
'TeX-parse-function))
          reparse)))

 (defun TeX-previous-error (arg)
@@ -1250,8 +1249,8 @@
 (defun TeX-active-buffer ()
   "Return the buffer of the active process for this buffer."
   (and TeX-command-buffer
-       (TeX-process-buffer (with-current-buffer TeX-command-buffer
-                 (TeX-active-master)))))
+       (with-current-buffer TeX-command-buffer
+     (TeX-process-buffer (TeX-active-master)))))

 (defun TeX-active-master (&optional extension nondirectory)
   "The master file currently being compiled.

------------------

Best regards,
Fabrice