new file mode 100644
--- /dev/null
+++ b/src/core/ngx_core.h
@@ -0,0 +1,78 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ */
+
+
+#ifndef _NGX_CORE_H_INCLUDED_
+#define _NGX_CORE_H_INCLUDED_
+
+
+typedef struct ngx_module_s      ngx_module_t;
+typedef struct ngx_conf_s        ngx_conf_t;
+typedef struct ngx_cycle_s       ngx_cycle_t;
+typedef struct ngx_pool_s        ngx_pool_t;
+typedef struct ngx_log_s         ngx_log_t;
+typedef struct ngx_array_s       ngx_array_t;
+typedef struct ngx_open_file_s   ngx_open_file_t;
+typedef struct ngx_command_s     ngx_command_t;
+typedef struct ngx_file_s        ngx_file_t;
+typedef struct ngx_event_s       ngx_event_t;
+typedef struct ngx_connection_s  ngx_connection_t;
+
+typedef void (*ngx_event_handler_pt)(ngx_event_t *ev);
+
+
+
+#define  NGX_OK          0
+#define  NGX_ERROR      -1
+#define  NGX_AGAIN      -2
+#define  NGX_BUSY       -3
+#define  NGX_DONE       -4
+#define  NGX_DECLINED   -5
+#define  NGX_ABORT      -6
+
+
+#include <ngx_atomic.h>
+#include <ngx_time.h>
+#include <ngx_socket.h>
+#include <ngx_errno.h>
+#include <ngx_types.h>
+#include <ngx_shared.h>
+#include <ngx_process.h>
+#include <ngx_thread.h>
+#include <ngx_user.h>
+#include <ngx_string.h>
+#include <ngx_parse.h>
+#include <ngx_log.h>
+#include <ngx_alloc.h>
+#include <ngx_palloc.h>
+#include <ngx_buf.h>
+#include <ngx_array.h>
+#include <ngx_list.h>
+#include <ngx_table.h>
+#include <ngx_file.h>
+#include <ngx_files.h>
+#include <ngx_crc.h>
+#if (HAVE_PCRE)
+#include <ngx_regex.h>
+#endif
+#include <ngx_rbtree.h>
+#include <ngx_times.h>
+#include <ngx_inet.h>
+#include <ngx_cycle.h>
+#include <ngx_process_cycle.h>
+#include <ngx_conf_file.h>
+#include <ngx_os.h>
+#if (NGX_OPENSSL)
+#include <ngx_event_openssl.h>
+#endif
+#include <ngx_connection.h>
+
+
+#define LF     (u_char) 10
+#define CR     (u_char) 13
+#define CRLF   "\x0d\x0a"
+
+
+#endif /* _NGX_CORE_H_INCLUDED_ */