-# serial 15
+# serial 18
-# See if we need to emulate a missing ftruncate function using fcntl or chsize.
+# See if we need to emulate a missing ftruncate function using chsize.
-# Copyright (C) 2000-2001, 2003-2007, 2009-2010 Free Software Foundation, Inc.
+# Copyright (C) 2000-2001, 2003-2007, 2009-2011 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
-# FIXME: remove this macro, along with all uses of HAVE_FTRUNCATE in 2012,
-# if the check below provokes no more reports. So far, the only report
-# arose from a test build of this gnulib module, cross-compiling to mingw:
-# <http://thread.gmane.org/gmane.comp.lib.gnulib.bugs/9203>
-# Now (in 2010), MSVC has been raised as a possible target:
-# <http://thread.gmane.org/gmane.comp.lib.gnulib.bugs/21394/focus=21396>
-
AC_DEFUN([gl_FUNC_FTRUNCATE],
[
AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
- AC_REQUIRE([AC_CANONICAL_HOST])
AC_CHECK_FUNCS_ONCE([ftruncate])
if test $ac_cv_func_ftruncate = no; then
HAVE_FTRUNCATE=0
- AC_LIBOBJ([ftruncate])
- gl_PREREQ_FTRUNCATE
- case "$host_os" in
- mingw*)
- # Yes, we know mingw lacks ftruncate.
- ;;
- *)
- # If someone lacks ftruncate, make configure fail, and request
- # a bug report to inform us about it.
- if test x"$SKIP_FTRUNCATE_CHECK" != xyes; then
- AC_MSG_FAILURE([Your system lacks the ftruncate function.
- Please report this, along with the output of "uname -a", to the
- bug-coreutils@gnu.org mailing list. To continue past this point,
- rerun configure with SKIP_FTRUNCATE_CHECK=yes.
- E.g., ./configure SKIP_FTRUNCATE_CHECK=yes])
- fi
- esac
fi
])
# Prerequisites of lib/ftruncate.c.
AC_DEFUN([gl_PREREQ_FTRUNCATE],
[
+ AC_REQUIRE([AC_C_INLINE])
AC_CHECK_FUNCS([chsize])
])