| 1 | #serial 10
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| 2 |
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| 3 | # See if we need to emulate a missing ftruncate function using fcntl or chsize.
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| 4 |
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| 5 | # Copyright (C) 2000, 2001, 2003-2006 Free Software Foundation, Inc.
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| 6 | # This file is free software; the Free Software Foundation
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| 7 | # gives unlimited permission to copy and/or distribute it,
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| 8 | # with or without modifications, as long as this notice is preserved.
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| 9 |
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| 10 | # FIXME: remove this macro, along with all uses of HAVE_FTRUNCATE in 2007,
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| 11 | # if the check below provokes no reports.
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| 12 |
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| 13 | AC_DEFUN([gl_FUNC_FTRUNCATE],
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| 14 | [
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| 15 | AC_REPLACE_FUNCS(ftruncate)
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| 16 | if test $ac_cv_func_ftruncate = no; then
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| 17 | gl_PREREQ_FTRUNCATE
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| 18 | # If someone lacks ftruncate, make configure fail, and request
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| 19 | # a bug report to inform us about it.
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| 20 | if test x"$SKIP_FTRUNCATE_CHECK" != xyes; then
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| 21 | AC_MSG_FAILURE([Your system lacks the ftruncate function.
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| 22 | Please report this, along with the output of "uname -a", to the
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| 23 | bug-coreutils@gnu.org mailing list. To continue past this point,
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| 24 | rerun configure with SKIP_FTRUNCATE_CHECK=yes.
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| 25 | E.g., ./configure SKIP_FTRUNCATE_CHECK=yes])
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| 26 | fi
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| 27 | fi
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| 28 | ])
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| 29 |
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| 30 | # Prerequisites of lib/ftruncate.c.
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| 31 | AC_DEFUN([gl_PREREQ_FTRUNCATE],
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| 32 | [
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| 33 | AC_CHECK_FUNCS(chsize)
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| 34 | ])
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