win32: Fix spurious apr_thread_once() failures.

* threadproc/win32/thread.c
  (apr_thread_once): Pass NULL as lpContext argument in call to
   InitOnceExecuteOnce(). According to documentation pointer stored in lpContext
   should be DWORD aligned. We do not use lpContext argument and lpContext is
   optional, so just use NULL.
 

git-svn-id: https://svn.apache.org/repos/asf/apr/apr/trunk@1902129 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 1 insertions, 3 deletions

diff --git a/threadproc/win32/thread.c b/threadproc/win32/thread.c
index 34cf4851b..4e2c36ead 100644
--- a/threadproc/win32/thread.c
+++ b/threadproc/win32/thread.c
@@ -371,10 +371,8 @@ static BOOL WINAPI init_once_callback(PINIT_ONCE InitOnce,
 APR_DECLARE(apr_status_t) apr_thread_once(apr_thread_once_t *control,
                                           void (*func)(void))
 {
-    PVOID lpContext;
-
     if (!InitOnceExecuteOnce(&control->once, init_once_callback, func,
-                             &lpContext)) {
+                             NULL)) {
         return apr_get_os_error();
     }