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      1 #serial 7
      2 
      3 # See if we need to emulate a missing ftruncate function using fcntl or chsize.
      4 
      5 # Copyright (C) 2000, 2001, 2003, 2004 Free Software Foundation, Inc.
      6 # This file is free software; the Free Software Foundation
      7 # gives unlimited permission to copy and/or distribute it,
      8 # with or without modifications, as long as this notice is preserved.
      9 
     10 AC_DEFUN([gl_FUNC_FTRUNCATE],
     11 [
     12   AC_REPLACE_FUNCS(ftruncate)
     13   if test $ac_cv_func_ftruncate = no; then
     14     gl_PREREQ_FTRUNCATE
     15   fi
     16 ])
     17 
     18 # Prerequisites of lib/ftruncate.c.
     19 AC_DEFUN([gl_PREREQ_FTRUNCATE],
     20 [
     21   AC_CHECK_HEADERS_ONCE(unistd.h)
     22   AC_CHECK_FUNCS(chsize)
     23 ])
     24