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-rw-r--r--src/os/unix/ngx_thread.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/os/unix/ngx_thread.h b/src/os/unix/ngx_thread.h
index 3ecc1e62a..3961f328f 100644
--- a/src/os/unix/ngx_thread.h
+++ b/src/os/unix/ngx_thread.h
@@ -60,6 +60,9 @@ ngx_int_t ngx_mutex_do_lock(ngx_mutex_t *m, ngx_int_t try);
ngx_int_t ngx_mutex_unlock(ngx_mutex_t *m);
+extern ngx_int_t ngx_threaded;
+
+
#else /* !NGX_THREADS */
#define ngx_log_tid 0