Use max_align_t from <stddef.h>.

Now that we build with -std=gnu11 and can rely on a compiler providing
max_align_t in <stddef.h>, we no longer need our own version
libc_max_align_t.  This patch removes it and replaces the single user
with a use of max_align_t.

Tested for x86_64 and x86 (testsuite, and that installed stripped
shared libraries are unchanged by the patch for x86_64; for x86, I see
some code reordering of no significance).

	* include/libc-internal.h (libc_max_align_t): Remove typedef.
	* include/scratch_buffer.h: Include <stddef.h> instead of
	<libc-internal.h>.
	(struct scratch_buffer): Use max_align_t instead of
	libc_max_align_t.

1 files changed, 0 insertions, 9 deletions

diff --git a/include/libc-internal.h b/include/libc-internal.h
index 65a2a56cc7..7a185bbdc7 100644
--- a/include/libc-internal.h
+++ b/include/libc-internal.h
@@ -111,13 +111,4 @@ extern __typeof (__profile_frequency) __profile_frequency attribute_hidden;
 #define DIAG_IGNORE_NEEDS_COMMENT(version, option)	\
   _Pragma (_DIAG_STR (GCC diagnostic ignored option))
 
-/* This mirrors the C11 max_align_t type provided by GCC, but it is
-   also available in C99 mode.  The aligned attributes are required
-   because some ABIs have reduced alignment requirements for struct
-   and union members.  */
-typedef struct {
-  long long ll __attribute__ ((__aligned__ (__alignof__ (long long))));
-  long double ld __attribute__ ((__aligned__ (__alignof__ (long double))));
-} libc_max_align_t;
-
 #endif /* _LIBC_INTERNAL  */