# Prerequisites of lib/pagealign_alloc.c.
AC_DEFUN([gl_PREREQ_PAGEALIGN_ALLOC],
[
- AC_REQUIRE([gl_FUNC_MMAP])
+ AC_REQUIRE([gl_FUNC_MMAP_ANON])
AC_REQUIRE([gl_GETPAGESIZE])
AC_CHECK_FUNCS_ONCE([posix_memalign])
AC_CHECK_HEADERS_ONCE([fcntl.h unistd.h])