bug#5927: `xz' command not found when running 'make dist and distcheck'

[jeff.liu]

Jim Meyering wrote:
> jeff.liu wrote:
> ...
>> But I am facing another 'make distcheck' issue even if `xz' available but 
>> the `tar' does not updated
>> to the version which support '-J' or '-xz' options.
>>
>> The 'make distcheck' error shown as following:
>> /bin/bash /home/jeff/opensource_dev/coreutils/build-aux/missing --run tar 
>> -Jxf
>> coreutils-8.4.86-e6f6bb.tar.xz -C 
>> /home/jeff/opensource_dev/coreutils/tests/torture/coreutils/test
>> tar: invalid option -- J
>> Try `tar --help' or `tar --usage' for more information.
>> WARNING: I can't seem to be able to run `tar' with the given arguments.
>>          You may want to install GNU tar or Free paxutils, or check the
>>          command line arguments.
> 
> For now, I suggest you simply install a new enough version of tar,
> as suggested.
> 
Yeah, I updated to the upstream tar, its ok now.

> We assume that someone interested enough to run "make distcheck" is
> also using a system that is sufficiently modern.
> If your system/tools are not up to date enough, you'll probably
> encounter other problems, too.
> 
> From HACKING,
> 
>     Run "make syntax-check", or even "make distcheck"
>     ================================================
>     Making either of those targets runs many integrity and
>     project-specific policy-conformance tests.  For example, the former
>     ensures that you add no trailing blanks and no uses of certain deprecated
>     functions.  The latter performs all "syntax-check" tests, and also
>     ensures that the build completes with no warnings when using a certain
>     set of gcc -W... options.
> 
> **  Don't even bother running "make distcheck"
> **  unless you have a reasonably up to date installation including recent
> **  versions of gcc and the linux kernel, and modern GNU tools.

Thanks,
-Jeff