[glibc] <stdio.h>: Make fopencookie, vasprintf, asprintf available by default

[Florian Weimer <fw@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=0d5cb2ae27c0a163c15e5222fb132bf9d026b14b

commit 0d5cb2ae27c0a163c15e5222fb132bf9d026b14b
Author: Florian Weimer <fweimer@redhat.com>
Date:   Thu Apr 6 16:40:44 2023 +0200

    <stdio.h>: Make fopencookie, vasprintf, asprintf available by default
    
    FreeBSD makes these functions available by default, so we should
    not treat them as GNU-specific and restrict them to _GNU_SOURCE.
    
    Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

Diff:
---
 libio/stdio.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/libio/stdio.h b/libio/stdio.h
index 686c40f28d..45ddafdf20 100644
--- a/libio/stdio.h
+++ b/libio/stdio.h
@@ -42,7 +42,7 @@ __BEGIN_DECLS
 #include <bits/types/FILE.h>
 #include <bits/types/struct_FILE.h>
 
-#ifdef __USE_GNU
+#ifdef __USE_MISC
 # include <bits/types/cookie_io_functions_t.h>
 #endif
 
@@ -299,7 +299,7 @@ extern FILE *fdopen (int __fd, const char *__modes) __THROW
   __attribute_malloc__ __attr_dealloc_fclose __wur;
 #endif
 
-#ifdef	__USE_GNU
+#ifdef	__USE_MISC
 /* Create a new stream that refers to the given magic cookie,
    and uses the given functions for input and output.  */
 extern FILE *fopencookie (void *__restrict __magic_cookie,
@@ -389,7 +389,7 @@ extern int vsnprintf (char *__restrict __s, size_t __maxlen,
      __THROWNL __attribute__ ((__format__ (__printf__, 3, 0)));
 #endif
 
-#if __GLIBC_USE (LIB_EXT2)
+#if defined (__USE_MISC) || __GLIBC_USE (LIB_EXT2)
 /* Write formatted output to a string dynamically allocated with `malloc'.
    Store the address of the string in *PTR.  */
 extern int vasprintf (char **__restrict __ptr, const char *__restrict __f,