Merge branch 'concurrency'

Conflicts (resolved):
	configure.ac
	src/Makefile.in
	src/alloc.c
	src/bytecode.c
	src/emacs.c
	src/eval.c
	src/lisp.h
	src/process.c
	src/regex.c
	src/regex.h

1 files changed, 3 insertions, 2 deletions

diff --git a/src/buffer.c b/src/buffer.c
index 6815aa7f7ed..cea1ddb5ab3 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -48,8 +48,6 @@ along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
 #include "w32heap.h"            /* for mmap_* */
 #endif
 
-struct buffer *current_buffer;          /* The current buffer.  */
-
 /* First buffer in chain of all buffers (in reverse order of creation).
    Threaded through ->header.next.buffer.  */
 
@@ -1654,6 +1652,9 @@ cleaning up all windows currently displaying the buffer to be killed. */)
   if (!BUFFER_LIVE_P (b))
     return Qnil;
 
+  if (thread_check_current_buffer (b))
+    return Qnil;
+
   /* Run hooks with the buffer to be killed the current buffer.  */
   {
     ptrdiff_t count = SPECPDL_INDEX ();