Re: [PATCH] configure: Improve zstd test

["Alex Bennée" <alex.bennee@linaro.org>]

Juan Quintela <quintela@redhat.com> writes:

> Alex Bennée <alex.bennee@linaro.org> wrote:
>> Juan Quintela <quintela@redhat.com> writes:
>>
>>> There were one error on the test (missing an s for --exists).
>>> But we really need a recent zstd (0.8.1).
>>> That version was released in 2016, so it is newer that some of our travis
>>> images.  Just check for the version that we need.
>>>
>>> Signed-off-by: Juan Quintela <quintela@redhat.com>
>>> Reported-by: Richard Henderson <richard.henderson@linaro.org>
>>> ---
>>>  configure | 3 ++-
>>>  1 file changed, 2 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/configure b/configure
>>> index 7b373bc0bb..1bf48df1ef 100755
>>> --- a/configure
>>> +++ b/configure
>>> @@ -2464,7 +2464,8 @@ fi
>>>  # zstd check
>>>  
>>>  if test "$zstd" != "no" ; then
>>> -    if $pkg_config --exist libzstd ; then
>>> +    libzstd_minver="0.8.1"
>>> +    if $pkg_config --atleast-version=$libzstd_minver libzstd ; then
>>>          zstd_cflags="$($pkg_config --cflags libzstd)"
>>>          zstd_libs="$($pkg_config --libs libzstd)"
>>>          LIBS="$zstd_libs $LIBS"
>>
>> Hmm still breaks with:
>>
>>    make docker-test-build@ubuntu J=9 V=1
>
> Thanks.
>
>> With:
>>
>>   FY_SOURCE=2 -g   -c -o monitor/qmp.o /tmp/qemu-test/src/monitor/qmp.c
>>   /tmp/qemu-test/src/migration/multifd-zstd.c: In function 'zstd_send_prepare':
>>   /tmp/qemu-test/src/migration/multifd-zstd.c:125:9: error: unknown type name 'ZSTD_EndDirective'; did you mean 'ZSTD_DDict'?
>>            ZSTD_EndDirective flush = ZSTD_e_continue;
>>            ^~~~~~~~~~~~~~~~~
>
> Greate, more things were introduced later.
> As it would be too easy, the zstd repository is not lineal, you need to
> checkout the tag you want to see when something has been introduced.
>
> Will try to get this fixed.
>
> Sorry for the inconveniences.
>
>
>>   Version: 1.3.8+dfsg-3
>>   Depends: libzstd1 (= 1.3.8+dfsg-3)
>>   Description: fast lossless compression algorithm -- development files
>
> I don't undertsand now.
>
> ZSTD_EndDirective was included in 1.3.0.
>
> I can just change that for 1.3.9, but I don't know why is that there.
> Could you do a grep ZSTD_EndDirective /usr/lib/zstd.h?

23:07:26 [alex@zen:~/l/q/b/all] review/misc-bits|… 2 + docker run --rm -it qemu:ubuntu grep -r "ZSTD_End" /usr/include/
/usr/include/zstd.h:} ZSTD_EndDirective;
/usr/include/zstd.h:                                         ZSTD_EndDirective endOp);
/usr/include/zstd.h:                            ZSTD_EndDirective endOp);

>
> Or if there is some documentation that shows how to use that docker
> images.

Setting up docker is described in docs/devel/testing.rst - once setup
the make invocations I listed work. The final images are all tagged
qemu:FOO so for ubuntu the general form:

  docker run --rm -it qemu:ubuntu COMMAND

Will do what you want.

>
> Later, Juan.


-- 
Alex Bennée