[newlib-cygwin] Add CLEANUP_FILE define

[Sebastian Huber <sh@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=4b28f3c125c4a4a17d5084548393962778ab27b2

commit 4b28f3c125c4a4a17d5084548393962778ab27b2
Author: Matt Joyce <matthew.joyce@embedded-brains.de>
Date:   Tue May 3 06:29:36 2022 +0200

    Add CLEANUP_FILE define
    
    Define the configuration-dependent constant CLEANUP_FILE for use in
    cleanup_stdio(). This will reduce duplicate code during the addition
    of a dedicated stdio atexit handler in a follow-on patch.

Diff:
---
 newlib/libc/stdio/findfp.c | 38 +++++++++++++++++++-------------------
 1 file changed, 19 insertions(+), 19 deletions(-)

diff --git a/newlib/libc/stdio/findfp.c b/newlib/libc/stdio/findfp.c
index 7434c343c..5b0402ac1 100644
--- a/newlib/libc/stdio/findfp.c
+++ b/newlib/libc/stdio/findfp.c
@@ -39,6 +39,21 @@ const struct __sFILE_fake __sf_fake_stderr =
 __FILE __sf[3];
 #endif
 
+#ifdef _STDIO_BSD_SEMANTICS
+  /* BSD and Glibc systems only flush streams which have been written to
+     at exit time.  Calling flush rather than close for speed, as on
+     the aforementioned systems. */
+#define CLEANUP_FILE __sflushw_r
+#else
+  /* Otherwise close files and flush read streams, too.
+     Note we call flush directly if "--enable-lite-exit" is in effect.  */
+#ifdef _LITE_EXIT
+#define CLEANUP_FILE _fflush_r
+#else
+#define CLEANUP_FILE _fclose_r
+#endif
+#endif
+
 #if (defined (__OPTIMIZE_SIZE__) || defined (PREFER_SIZE_OVER_SPEED))
 _NOINLINE_STATIC void
 #else
@@ -208,30 +223,15 @@ found:
 static void
 cleanup_stdio (struct _reent *ptr)
 {
-  int (*cleanup_func) (struct _reent *, FILE *);
-#ifdef _STDIO_BSD_SEMANTICS
-  /* BSD and Glibc systems only flush streams which have been written to
-     at exit time.  Calling flush rather than close for speed, as on
-     the aforementioned systems. */
-  cleanup_func = __sflushw_r;
-#else
-  /* Otherwise close files and flush read streams, too.
-     Note we call flush directly if "--enable-lite-exit" is in effect.  */
-#ifdef _LITE_EXIT
-  cleanup_func = _fflush_r;
-#else
-  cleanup_func = _fclose_r;
-#endif
-#endif
 #ifdef _REENT_GLOBAL_STDIO_STREAMS
   if (ptr->_stdin != &__sf[0])
-    (*cleanup_func) (ptr, ptr->_stdin);
+    CLEANUP_FILE (ptr, ptr->_stdin);
   if (ptr->_stdout != &__sf[1])
-    (*cleanup_func) (ptr, ptr->_stdout);
+    CLEANUP_FILE (ptr, ptr->_stdout);
   if (ptr->_stderr != &__sf[2])
-    (*cleanup_func) (ptr, ptr->_stderr);
+    CLEANUP_FILE (ptr, ptr->_stderr);
 #endif
-  (void) _fwalk_reent (ptr, cleanup_func);
+  (void) _fwalk_reent (ptr, CLEANUP_FILE);
 }
 
 /*