X-Git-Url: https://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fpagealign_alloc.m4;h=0a6765e8806bf9a0141225d356781e672981dda3;hb=ba3be00a5546579e80323430a57a3aedaedc6156;hp=2f0cac453761ea5e431f0134bc8853397621de66;hpb=c49424557579cb46914ba4f080720d8b94abab39;p=gnulib.git

diff --git a/m4/pagealign_alloc.m4 b/m4/pagealign_alloc.m4
index 2f0cac453..0a6765e88 100644
--- a/m4/pagealign_alloc.m4
+++ b/m4/pagealign_alloc.m4
@@ -1,5 +1,5 @@
-# pagealign_alloc.m4 serial 1
-dnl Copyright (C) 2005 Free Software Foundation, Inc.
+#serial 6
+dnl Copyright (C) 2005-2007, 2009-2012 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.
@@ -7,18 +7,15 @@ 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_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
 
-  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])
-  AC_REQUIRE([gl_GETPAGESIZE])
+  AC_REQUIRE([gl_FUNC_MMAP_ANON])
   AC_CHECK_FUNCS_ONCE([posix_memalign])
-  AC_CHECK_HEADERS_ONCE([fcntl.h unistd.h])
+  AC_CHECK_HEADERS_ONCE([unistd.h])
 ])