Rename win32-uname.[ch] to posix-w32.[ch]

* libguile/posix-w32.c:
* libguile/posix-w32.h: Rename from win32-uname.c and win32-uname.h.
* libguile/posix.c:
* libguile/Makefile.am
  (EXTRA_libguile_@GUILE_EFFECTIVE_VERSION@_la_SOURCES)
  (noinst_HEADERS): Adapt.

libguile/Makefile.am

@@ -1,7 +1,7 @@
 ## Process this file with Automake to create Makefile.in
 ##
 ##   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2006, 2007,
-##     2008, 2009, 2010, 2011, 2012, 2013, 2014 Free Software Foundation, Inc.
+##     2008, 2009, 2010, 2011, 2012, 2013, 2014, 2016 Free Software Foundation, Inc.
 ##
 ##   This file is part of GUILE.
 ##
@@ -456,7 +456,7 @@ EXTRA_libguile_@GUILE_EFFECTIVE_VERSION@_la_SOURCES = _scm.h		\
     dynl.c regex-posix.c			\
     posix.c net_db.c socket.c			\
     debug-malloc.c				\
-    win32-uname.c				\
+    posix-w32.c					\
     locale-categories.h
 
 ## delete guile-snarf.awk from the installation bindir, in case it's
@@ -504,7 +504,7 @@ noinst_HEADERS = conv-integer.i.c conv-uinteger.i.c		\
                  elf.h						\
                  srfi-14.i.c					\
                  quicksort.i.c                                  \
-                 win32-uname.h					\
+                 posix-w32.h					\
 		 private-options.h ports-internal.h
 
 # vm instructions

libguile/posix-w32.c

@@ -26,7 +26,7 @@
 #include <stdio.h>
 #include <string.h>
 
-#include "win32-uname.h"
+#include "posix-w32.h"
 
 /*
  * Get name and information about current kernel.

libguile/posix-w32.h

@@ -1,7 +1,7 @@
 /* classes: h_files */
 
-#ifndef SCM_WIN32_UNAME_H
-#define SCM_WIN32_UNAME_H
+#ifndef SCM_POSIX_W32_H
+#define SCM_POSIX_W32_H
 
 /* Copyright (C) 2001, 2006 Free Software Foundation, Inc.
  *
@@ -49,4 +49,4 @@ struct utsname
 
 int uname (struct utsname * uts);
 
-#endif /* SCM_WIN32_UNAME_H */
+#endif /* SCM_POSIX_W32_H */

libguile/posix.c

@@ -81,6 +81,10 @@
 #include "libguile/threads.h"
 
 
+#ifdef __MINGW32__
+# include "posix-w32.h"
+#endif
+
 #if HAVE_SYS_WAIT_H
 # include <sys/wait.h>
 #endif
@@ -1427,10 +1431,6 @@ scm_open_process (SCM mode, SCM prog, SCM args)
 #undef FUNC_NAME
 #endif /* HAVE_START_CHILD */
 
-#ifdef __MINGW32__
-# include "win32-uname.h"
-#endif
-
 #if defined (HAVE_UNAME) || defined (__MINGW32__)
 SCM_DEFINE (scm_uname, "uname", 0, 0, 0,
             (),