2024-10-26 Paul Eggert <eggert@cs.ucla.edu>
+ posix_memalign: port better to OpenBSD 6.2+ cross
+ * m4/posix_memalign.m4 (gl_FUNC_POSIX_MEMALIGN):
+ Don’t assume sizeof (void *) <= 32 (!).
+ The bug is fixed in OpenBSD 6.2+.
+
posix_memalign-tests: fix message typo
* tests/test-posix_memalign.c (main): Fix diagnostic typo.
# posix_memalign.m4
-# serial 3
+# serial 4
dnl Copyright (C) 2020-2024 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
gl_CHECK_FUNCS_ANDROID([posix_memalign], [[#include <stdlib.h>]])
if test $ac_cv_func_posix_memalign = yes; then
- dnl On OpenBSD 6.1, posix_memalign (&p, 32, 2406) returns a pointer
+ dnl On OpenBSD 6.1, posix_memalign (&p, 32, 2406) stores a pointer
dnl that is not a multiple of 32.
AC_CACHE_CHECK([whether posix_memalign works for large alignments],
[gl_cv_func_posix_memalign_works],
[[#include <stdlib.h>
]],
[[void *p;
- if (posix_memalign (&p, 32, 2406) == 0)
- if (((unsigned long)p % 32) != 0)
- return 1;
+ if (32 % sizeof (void *) == 0
+ && posix_memalign (&p, 32, 2406) == 0
+ && (unsigned long) p % 32 != 0)
+ return 1;
return 0;
]])
],
[gl_cv_func_posix_memalign_works=yes],
[gl_cv_func_posix_memalign_works=no],
[case "$host_os" in
- # Guess no on OpenBSD.
- openbsd*) gl_cv_func_posix_memalign_works="guessing no" ;;
+changequote(,)dnl
+ # Guess no on OpenBSD through 6.1.
+ openbsd[1-5].* | openbsd6.[01] | openbsd6.[01].*)
+ gl_cv_func_posix_memalign_works="guessing no" ;;
# If we don't know, obey --enable-cross-guesses.
*) gl_cv_func_posix_memalign_works="$gl_cross_guess_normal" ;;
+changequote([,])dnl
esac
])
])