Handle errno and exit status a bit more carefully.

* lib/ignore-value.h: Remove this gnulib-imported file.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* admin/merge-gnulib (GNULIB_MODULES): Remove ignore-value.
* src/callproc.c (child_setup) [!DOS_NT]: Don't try to stuff an error
number into an exit status.  Instead, use EXIT_CANCELED.
(child_setup) [!MSDOS]: Avoid possible deadlock with vfork.
* src/callproc.c (relocate_fd):
* src/emacs.c (close_output_streams, main):
* src/process.c (create_process):
* src/sysdep.c (sys_subshell) [!DOS_NT || !WINDOWSNT]:
Use emacs_perror for simplicity.
* src/callproc.c (relocate_fd, main):
* src/sysdep.c (sys_subshell):
Exit with EXIT_CANCELED etc., not 1, when exec setup fails.
(shut_down_emacs): Use emacs_write, not write.
* src/emacs.c, src/sysdep.c: Don't include <ignore-value.h>.
* src/fileio.c (Fcopy_file, e_write):
* src/nsterm.m (ns_select):
* src/process.c (send_process):
* src/sound.c (vox_write):
Use emacs_write_sig, not emacs_write.
* src/lisp.h (emacs_write_sig, emacs_perror): New decls.
* src/process.h (EXIT_CANCELED), EXIT_CANNOT_INVOKE, EXIT_ENOENT):
New constants.
* src/sysdep.c (emacs_backtrace): Use emacs_write, not ignore_value
of write.
(emacs_full_write): New function.
(emacs_write): Rewrite to use it.
(emacswrite_sig, emacs_perror): New functions.
* src/xrdb.c (fatal): Don't invoke perror, since errno might be garbage.

1 files changed, 31 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 9be0b59ee06..8b152f4a176 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,34 @@
+2013-07-09  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Handle errno and exit status a bit more carefully.
+        * callproc.c (child_setup) [!DOS_NT]: Don't try to stuff an error
+        number into an exit status.  Instead, use EXIT_CANCELED.
+        (child_setup) [!MSDOS]: Avoid possible deadlock with vfork.
+        * callproc.c (relocate_fd):
+        * emacs.c (close_output_streams, main):
+        * process.c (create_process):
+        * sysdep.c (sys_subshell) [!DOS_NT || !WINDOWSNT]:
+        Use emacs_perror for simplicity.
+        * callproc.c (relocate_fd, main):
+        * sysdep.c (sys_subshell):
+        Exit with EXIT_CANCELED etc., not 1, when exec setup fails.
+        (shut_down_emacs): Use emacs_write, not write.
+        * emacs.c, sysdep.c: Don't include <ignore-value.h>.
+        * fileio.c (Fcopy_file, e_write):
+        * nsterm.m (ns_select):
+        * process.c (send_process):
+        * sound.c (vox_write):
+        Use emacs_write_sig, not emacs_write.
+        * lisp.h (emacs_write_sig, emacs_perror): New decls.
+        * process.h (EXIT_CANCELED), EXIT_CANNOT_INVOKE, EXIT_ENOENT):
+        New constants.
+        * sysdep.c (emacs_backtrace): Use emacs_write, not ignore_value
+        of write.
+        (emacs_full_write): New function.
+        (emacs_write): Rewrite to use it.
+        (emacswrite_sig, emacs_perror): New functions.
+        * xrdb.c (fatal): Don't invoke perror, since errno might be garbage.
+
 2013-07-08  Magnus Henoch <magnus.henoch@gmail.com> (tiny change).
 
         * image.c (imagemagick_load_image): Do not use MagickExportImagePixels