Enable thread support in the MS-Windows build.

 src/systhread.h (w32thread_critsect, w32thread_cond_t, sys_mutex_t)
 (sys_cond_t, sys_thread_t) [WINDOWSNT]: New data types.
 src/systhread.c (sys_mutex_init, sys_mutex_lock, sys_mutex_unlock)
 (sys_mutex_destroy, sys_cond_init, sys_cond_wait)
 (sys_cond_signal, sys_cond_broadcast, sys_cond_destroy)
 (sys_thread_self, sys_thread_equal, w32_beginthread_wrapper)
 (sys_thread_create, sys_thread_yield) [WINDOWSNT]: New functions.

 configure.ac (THREADS_ENABLED): Enable threads for MinGW, even
 if pthreads is not available.

1 files changed, 5 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 35dbeb6065c..50a11186221 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2013-08-30  Eli Zaretskii  <eliz@gnu.org>
+
+        * configure.ac (THREADS_ENABLED): Enable threads for MinGW, even
+        if pthreads is not available.
+
 2013-08-22  Paul Eggert  <eggert@cs.ucla.edu>
 
         * configure.ac (EMACS_CONFIG_OPTIONS): Quote systematically (Bug#13274).