More fixes for 'volatile' and setjmp/longjmp.

* eval.c (Fdefvar, Fcondition_case): Remove unnecessary 'volatile's.
* image.c (struct png_load_context) [HAVE_PNG]: New type.
(png_load_body) [HAVE_PNG]:
(jpeg_load_body) [HAVE_JPEG]:
New function, with most of the old parent function's body.
(png_load) [HAVE_PNG]:
(jpeg_load) [HAVE_JPEG]:
Invoke the new function, to avoid longjmp munging our locals.
(struct my_jpeg_error_mgr) [HAVE_JPEG]: New members cinfo, failure_code.
(my_error_exit) [HAVE_JPEG]: Don't trust 'setjmp' to return 2 when
longjmp is passed 2, as the C standard doesn't guarantee this.
Instead, store the failure code into mgr->failure_code.

1 files changed, 16 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 8b47c52c23f..c0d3316bea1 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,19 @@
+2012-09-12  Paul Eggert  <eggert@cs.ucla.edu>
+
+        More fixes for 'volatile' and setjmp/longjmp.
+        * eval.c (Fdefvar, Fcondition_case): Remove unnecessary 'volatile's.
+        * image.c (struct png_load_context) [HAVE_PNG]: New type.
+        (png_load_body) [HAVE_PNG]:
+        (jpeg_load_body) [HAVE_JPEG]:
+        New function, with most of the old parent function's body.
+        (png_load) [HAVE_PNG]:
+        (jpeg_load) [HAVE_JPEG]:
+        Invoke the new function, to avoid longjmp munging our locals.
+        (struct my_jpeg_error_mgr) [HAVE_JPEG]: New members cinfo, failure_code.
+        (my_error_exit) [HAVE_JPEG]: Don't trust 'setjmp' to return 2 when
+        longjmp is passed 2, as the C standard doesn't guarantee this.
+        Instead, store the failure code into mgr->failure_code.
+
 2012-09-12  Stefan Monnier  <monnier@iro.umontreal.ca>
 
         * keyboard.c (read_char, requeued_events_pending_p, Finput_pending_p)