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#serial 7
dnl Copyright (C) 2005-2007, 2009-2023 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_PAGEALIGN_ALLOC],
[
dnl Persuade glibc <sys/mman.h> to define MAP_ANONYMOUS.
AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
gl_PREREQ_PAGEALIGN_ALLOC
])
# Prerequisites of lib/pagealign_alloc.c.
AC_DEFUN([gl_PREREQ_PAGEALIGN_ALLOC],
[
AC_REQUIRE([gl_FUNC_MMAP_ANON])
gl_CHECK_FUNCS_ANDROID([posix_memalign], [[#include <stdlib.h>]])
AC_CHECK_HEADERS_ONCE([unistd.h])
])
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