Remove the build-time option CLASH_DETECTION

Every platform supports it, and the runtime option `create-lockfiles'
replaces it.

* configure.ac (CLASH_DETECTION): Remove option.

* lisp/files.el (lock-buffer, unlock-buffer, file-locked-p):
Remove fallback aliases, since they are always defined now.

* src/buffer.c (Frestore_buffer_modified_p, Fkill_buffer):
* src/emacs.c (shut_down_emacs):
* src/fileio.c (Finsert_file_contents, write_region):
* src/filelock.c (top-level, syms_of_filelock):
* src/insdel.c (prepare_to_modify_buffer_1):
CLASH_DETECTION is always defined now.

* admin/CPP-DEFINES: Remove CLASH_DETECTION.

1 files changed, 9 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 31d90663206..87c2d364b05 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,12 @@
+2014-03-26  Glenn Morris  <rgm@gnu.org>
+
+        * buffer.c (Frestore_buffer_modified_p, Fkill_buffer):
+        * emacs.c (shut_down_emacs):
+        * fileio.c (Finsert_file_contents, write_region):
+        * filelock.c (top-level, syms_of_filelock):
+        * insdel.c (prepare_to_modify_buffer_1):
+        CLASH_DETECTION is always defined now.
+
 2014-03-25  Eli Zaretskii  <eliz@gnu.org>
 
         * w32.c (w32_delayed_load): Call DisableThreadLibraryCalls on the