1#serial 2 2dnl Copyright (C) 2005 Free Software Foundation, Inc. 3dnl This file is free software; the Free Software Foundation 4dnl gives unlimited permission to copy and/or distribute it, 5dnl with or without modifications, as long as this notice is preserved. 6 7AC_DEFUN([gl_PAGEALIGN_ALLOC], 8[ 9 dnl Persuade glibc <sys/mman.h> to define MAP_ANONYMOUS. 10 AC_REQUIRE([AC_GNU_SOURCE]) 11 12 AC_LIBSOURCE([pagealign_alloc.h]) 13 AC_LIBOBJ([pagealign_alloc]) 14 gl_PREREQ_PAGEALIGN_ALLOC 15]) 16 17# Prerequisites of lib/pagealign_alloc.c. 18AC_DEFUN([gl_PREREQ_PAGEALIGN_ALLOC], 19[ 20 AC_REQUIRE([gl_FUNC_MMAP_ANON]) 21 AC_REQUIRE([gl_GETPAGESIZE]) 22 AC_CHECK_FUNCS_ONCE([posix_memalign]) 23 AC_CHECK_HEADERS_ONCE([unistd.h]) 24]) 25