--- a/src/os/win32/ngx_os.h
+++ b/src/os/win32/ngx_os.h
@@ -11,6 +11,7 @@
 #include <ngx_config.h>
 #include <ngx_core.h>
 
+
 #define NGX_IO_SENDFILE    1
 
 
@@ -32,6 +33,7 @@ typedef struct {
 
 ngx_int_t ngx_os_init(ngx_log_t *log);
 void ngx_os_status(ngx_log_t *log);
+ngx_int_t ngx_os_signal_process(ngx_cycle_t *cycle, char *sig, ngx_int_t pid);
 
 ssize_t ngx_wsarecv(ngx_connection_t *c, u_char *buf, size_t size);
 ssize_t ngx_overlapped_wsarecv(ngx_connection_t *c, u_char *buf, size_t size);