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kc3-lang/gnulib/m4/ftruncate.m4

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  • Author : Jim Meyering
    Date : 2000-07-02 15:14:04
    Hash : 27ef3b86
    Message : fix typo in last change

  • m4/ftruncate.m4 
  • #serial 2

# See if we need to emulate a missing ftruncate function using fcntl.

AC_DEFUN(jm_FUNC_FTRUNCATE,
[
  AC_CHECK_FUNCS(ftruncate, , [ftruncate_missing=yes])

  if test "$ftruncate_missing" = yes; then
    AC_CHECK_HEADERS(unistd.h)
    AC_MSG_CHECKING([fcntl emulation of ftruncate])
    AC_CACHE_VAL(fu_cv_sys_ftruncate_emulation,
    [AC_TRY_LINK([
#include <sys/types.h>
#include <fcntl.h>], [
#if !defined(F_CHSIZE) && !defined(F_FREESP)
  chsize();
#endif
  ],
      fu_cv_sys_ftruncate_emulation=yes,
      fu_cv_sys_ftruncate_emulation=no)])
    AC_MSG_RESULT($fu_cv_sys_ftruncate_emulation)
    if test $fu_cv_sys_ftruncate_emulation = yes; then
      AC_LIBOBJ(ftruncate)
    fi
  fi
])