new file mode 100644
--- /dev/null
+++ b/src/os/unix/ngx_posix_config.h
@@ -0,0 +1,55 @@
+#ifndef _NGX_POSIX_CONFIG_H_INCLUDED_
+#define _NGX_POSIX_CONFIG_H_INCLUDED_
+
+
+#include <sys/types.h>
+#include <sys/time.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <stddef.h>             /* offsetof() */
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <signal.h>
+#include <pwd.h>
+#include <grp.h>
+#include <dirent.h>
+
+#include <sys/uio.h>
+#include <sys/filio.h>          /* FIONBIO */
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include <sys/wait.h>
+#include <sys/mman.h>
+#include <sys/resource.h>
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+
+#include <ngx_auto_config.h>
+
+
+#ifndef HAVE_SELECT
+#define HAVE_SELECT  1
+#endif
+
+
+#ifndef HAVE_POLL
+#define HAVE_POLL  1
+#endif
+#if (HAVE_POLL)
+#include <poll.h>
+#endif
+
+
+#define ngx_setproctitle(title)
+
+
+#define NGX_POSIX_IO  1
+
+
+#endif /* _NGX_POSIX_CONFIG_H_INCLUDED_ */