Re: test-fseek fails on W32

[LRN]

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On 02.04.2013 02:33, Eric Blake wrote:
> On 04/01/2013 04:25 PM, LRN wrote:
>>> That should be fixed, since a seek succeeding on a pipe is
>>> contrary to POSIX.  Is fseek being replaced on W32?
>> The package that hosts the instance of gnulib on which the
>> failure was observed is GnuTLS-3.1.5. I'm not sure whether it
>> replaces fseek or not, i don't see anything like that in its
>> configure.ac, and there is no special configure for its gl
>> subdirectory. However, that subdirectory does have fseek.c and
>> fseeko.c, and m4 subsubdirectory has fseek.m4. But fseeko.o or
>> fseek.o are not produced when the packages is compiled.
>> 
>>> If so, the gnulib replacement has a bug - it should be
>>> preventing fseek() from succeeding on a pipe.
>> Apparently, the MSVCRT implementation  of fseek() is used.
>> 
>>> If not, then we should fix the m4 tests to filter out the
>>> buggy W32 fseek and install the gnulib replacement.
>> 
>> I'm unsure of how they work.
> 
> What does 'grep _FSEEK config.status' show?
$ grep _FSEEK config.status
S["REPLACE_FSEEKO"]="0"
S["REPLACE_FSEEK"]="0"
S["HAVE_FSEEKO"]="1"
S["HAVE_DECL_FSEEKO"]="1"
S["GNULIB_FSEEKO"]="1"
S["GNULIB_FSEEK"]="1"
D["HAVE_FSEEKO"]=" 1"
D["HAVE_DECL_FSEEKO"]=" 1"
D["GNULIB_TEST_FSEEK"]=" 1"
D["GNULIB_TEST_FSEEKO"]=" 1"
D["HAVE_RAW_DECL_FSEEKO"]=" 1"

> How about 'grep LSEEK_PIPE config.h'?
$ grep LSEEK_PIPE config.status
D["LSEEK_PIPE_BROKEN"]=" 1"

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