+
−#serial 6
+
−dnl Copyright (C) 2005-2007, 2009-2013 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])
+
−  AC_CHECK_FUNCS_ONCE([posix_memalign])
+
−  AC_CHECK_HEADERS_ONCE([unistd.h])
+
−])