compile error:" unused variable ‘root’ "

compile error:" unused variable ‘root’ "

[Hatt Tom]

hi:

   I am compiling systemstap from source ,after configure well , I
type 'make' to compile .
   it print:
       tapset-method.cxx:431:15: error: unused variable ‘root’
[-Werror=unused-variable]
      tapset-method.cxx:432:26: error: unused variable ‘builder’
[-Werror=unused-variable]

how do I fix this issure?

thanks!

Re: compile error:" unused variable ‘root’ "

[Lukas Berk]

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Hey,

>    I am compiling systemstap from source ,after configure well , I
> type 'make' to compile .
>    it print:
>        tapset-method.cxx:431:15: error: unused variable ‘root’
> [-Werror=unused-variable]
>       tapset-method.cxx:432:26: error: unused variable ‘builder’
> [-Werror=unused-variable]
> 

I can't seem to reproduce the issue on fedora 19 with git head, what
sources are you using and with what distribution? Also, I'm wondering if
java support was enabled, in your build directory would you mind running 
`$grep "HAVE_JAVA" config.h` and pasting the output?  Did you configure
systemtap with any special java options?

Thanks,

Lukas

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Re: compile error:" unused variable ‘root’ "

[Hatt Tom]

thanks for reply!

I do not need jave sipprot ,my distribution is ubuntu-server ,I have
downloaded systemtap source from its offcial website .

Best Regards!

2013/8/9 Lukas Berk <lberk@redhat.com>:
> Hey,
>
>>    I am compiling systemstap from source ,after configure well , I
>> type 'make' to compile .
>>    it print:
>>        tapset-method.cxx:431:15: error: unused variable ‘root’
>> [-Werror=unused-variable]
>>       tapset-method.cxx:432:26: error: unused variable ‘builder’
>> [-Werror=unused-variable]
>>
>
> I can't seem to reproduce the issue on fedora 19 with git head, what
> sources are you using and with what distribution? Also, I'm wondering if
> java support was enabled, in your build directory would you mind running
> `$grep "HAVE_JAVA" config.h` and pasting the output?  Did you configure
> systemtap with any special java options?
>
> Thanks,
>
> Lukas

Re: compile error:" unused variable ‘root’ "

[David Smith]

On 08/10/2013 12:20 AM, Hatt Tom wrote:
> thanks for reply!
> 
> I do not need jave sipprot ,my distribution is ubuntu-server ,I have
> downloaded systemtap source from its offcial website .

Do you mean you downloaded a source release tarball or did you download
the git tree?

-- 
David Smith
dsmith@redhat.com
Red Hat
http://www.redhat.com
256.217.0141 (direct)
256.837.0057 (fax)

Re: compile error:" unused variable ‘root’ "

[Hatt Tom]

I only have downloaded the tarball .then compile in the source dir .


Thanks!

2013/8/13 David Smith <dsmith@redhat.com>:
> On 08/10/2013 12:20 AM, Hatt Tom wrote:
>> thanks for reply!
>>
>> I do not need jave sipprot ,my distribution is ubuntu-server ,I have
>> downloaded systemtap source from its offcial website .
>
> Do you mean you downloaded a source release tarball or did you download
> the git tree?
>
> --
> David Smith
> dsmith@redhat.com
> Red Hat
> http://www.redhat.com
> 256.217.0141 (direct)
> 256.837.0057 (fax)

Re: compile error:" unused variable ‘root’ "

[David Smith]

On 08/13/2013 11:18 PM, Hatt Tom wrote:
> I only have downloaded the tarball .then compile in the source dir .

OK, then your compile error is really odd. If you look at that code, you
can clearly see that those variables are being used.

One workaround might be to configure with '--without-java'. At that
point, the code with unused variables should be compiled out.

-- 
David Smith
dsmith@redhat.com
Red Hat
http://www.redhat.com
256.217.0141 (direct)
256.837.0057 (fax)

Re: compile error:" unused variable ‘root’ "

[Hatt Tom]

hi:

  I have configure it without-jave ,but it still report the same error:




2013/8/14 David Smith <dsmith@redhat.com>:
> On 08/13/2013 11:18 PM, Hatt Tom wrote:
>> I only have downloaded the tarball .then compile in the source dir .
>
> OK, then your compile error is really odd. If you look at that code, you
> can clearly see that those variables are being used.
>
> One workaround might be to configure with '--without-java'. At that
> point, the code with unused variables should be compiled out.
>
> --
> David Smith
> dsmith@redhat.com
> Red Hat
> http://www.redhat.com
> 256.217.0141 (direct)
> 256.837.0057 (fax)

Re: compile error:" unused variable ‘root’ "

[Lukas Berk]

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Hey,

I installed a ubuntu-server vm over the weekend and was still unable to
reproduce the error (without any java options or installing any specific
java packages).  What tarball are you using to compile systemtap?  I'm
wondering if its older than 2.2.1 like Frank mentioned[1].  

Cheers,

Lukas

[1] - http://article.gmane.org/gmane.linux.systemtap/21002

* Hatt Tom <net.study.sea@gmail.com> [2013-08-17 23:19]:
> hi:
> 
>   I have configure it without-jave ,but it still report the same error:

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Re: compile error:" unused variable ‘root’ "

[Hatt Tom]

I am using systemtap-2.2  and ubuntu -server LTS 12.04

Best Regards!

2013/8/19 Lukas Berk <lberk@redhat.com>:
> Hey,
>
> I installed a ubuntu-server vm over the weekend and was still unable to
> reproduce the error (without any java options or installing any specific
> java packages).  What tarball are you using to compile systemtap?  I'm
> wondering if its older than 2.2.1 like Frank mentioned[1].
>
> Cheers,
>
> Lukas
>
> [1] - http://article.gmane.org/gmane.linux.systemtap/21002
>
> * Hatt Tom <net.study.sea@gmail.com> [2013-08-17 23:19]:
>> hi:
>>
>>   I have configure it without-jave ,but it still report the same error:

Re: =?windows-1252?Q?compile_error=3A=22_unused_variable_=91root=92_=22?=

[Frank Ch. Eigler]

Hatt Tom <net.study.sea@gmail.com> writes:

> [...]
> how do I fix this issure?

git commit 47a606a7 fixed this in the 2.2.1 release (and later).

- FChE