#serial 2 dnl Copyright (C) 2005 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_GNU_SOURCE]) AC_LIBSOURCE([pagealign_alloc.h]) AC_LIBOBJ([pagealign_alloc]) gl_PREREQ_PAGEALIGN_ALLOC ]) # Prerequisites of lib/pagealign_alloc.c. AC_DEFUN([gl_PREREQ_PAGEALIGN_ALLOC], [ AC_REQUIRE([gl_FUNC_MMAP_ANON]) AC_REQUIRE([gl_GETPAGESIZE]) AC_CHECK_FUNCS_ONCE([posix_memalign]) AC_CHECK_HEADERS_ONCE([unistd.h]) ])