diff --git a/src/os/unix/ngx_freebsd_config.h b/src/os/unix/ngx_freebsd_config.h
index 7c229a4..0a7eedd 100644
--- a/src/os/unix/ngx_freebsd_config.h
+++ b/src/os/unix/ngx_freebsd_config.h
@@ -22,6 +22,11 @@
 #include <osreldate.h>
 
 
+#define  QD_FMT   "%qd"
+#define  QX_FMT   "%qx"
+#define  OFF_FMT  "%qd"
+
+
 #ifndef HAVE_SELECT
 #define HAVE_SELECT  1
 #endif
diff --git a/src/os/unix/ngx_linux_config.h b/src/os/unix/ngx_linux_config.h
index b90792c..96e1d88 100644
--- a/src/os/unix/ngx_linux_config.h
+++ b/src/os/unix/ngx_linux_config.h
@@ -2,25 +2,20 @@
 #define _NGX_LINUX_CONFIG_H_INCLUDED_
 
 
+#define _GNU_SOURCE             /* pread, pwrite, gethostname, bzero */
+
 #define _FILE_OFFSET_BITS  64
 #define _LARGEFILE_SOURCE
 
 
-#define _XOPEN_SOURCE 500       /* pread, pwrite */
 #include <unistd.h>
-#undef  _XOPEN_SOURCE 500
-
 #include <stddef.h>             /* offsetof */
 #include <stdlib.h>
 #include <stdio.h>
 #include <fcntl.h>
 #include <signal.h>
 #include <time.h>
-
-#define __USE_BSD               /* bzero */
 #include <string.h>
-#undef  __USE_BSD
-
 #include <sys/types.h>
 #include <sys/time.h>
 #include <sys/select.h>
@@ -39,6 +34,11 @@
 typedef unsigned char   u_char;
 
 
+#define  QD_FMT         "%qd"
+#define  QX_FMT         "%qx"
+#define  OFF_FMT        "%qd"
+
+
 #ifndef HAVE_SELECT
 #define HAVE_SELECT  1
 #endif
diff --git a/src/os/unix/ngx_solaris_config.h b/src/os/unix/ngx_solaris_config.h
index 31e17e1..e794644 100644
--- a/src/os/unix/ngx_solaris_config.h
+++ b/src/os/unix/ngx_solaris_config.h
@@ -5,8 +5,8 @@
 #define SOLARIS  1
 
 #define _REENTRANT
-#define _FILE_OFFSET_BITS  64   /* must be before sys/types.h */
 
+#define _FILE_OFFSET_BITS  64   /* must be before sys/types.h */
 
 #include <unistd.h>
 #include <stddef.h>             /* offsetof */
@@ -27,6 +27,10 @@
 
 typedef uint32_t  u_int32_t;
 
+#define  QD_FMT   "%lld"
+#define  QX_FMT   "%llx"
+#define  OFF_FMT  "%lld"
+
 
 #ifndef HAVE_SELECT
 #define HAVE_SELECT  1
diff --git a/src/os/unix/ngx_types.h b/src/os/unix/ngx_types.h
index bf61ae2..8d60650 100644
--- a/src/os/unix/ngx_types.h
+++ b/src/os/unix/ngx_types.h
@@ -12,20 +12,4 @@
 typedef struct stat  ngx_file_info_t;
 
 
-
-#ifdef SOLARIS
-
-#define  QD_FMT   "%lld"
-#define  QX_FMT   "%llx"
-#define  OFF_FMT  "%lld"
-
-#else
-
-#define  QD_FMT   "%qd"
-#define  QX_FMT   "%qx"
-#define  OFF_FMT  "%qd"
-
-#endif
-
-
 #endif /* _NGX_TYPES_H_INCLUDED_ */