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Posted to dev@mesos.apache.org by Jim Donahue <jd...@adobe.com> on 2012/12/07 20:04:18 UTC

Error building on Amazon Linux

I just tried building Mesos on Amazon Linux this morning, but it's failing compiling protobuf.hpp in function Result<bool> protobuf::read(int, google::protobuf::Message*) with the error:

	Comparison between signed and unsigned integer expressions [-Werror=signed-compare]

I think I've seen this before ...

Jim Donahue
Adobe Systems

Re: Error building on Amazon Linux

Posted by Benjamin Mahler <bm...@twitter.com>.

Thanks for the report, I'll send out a review for this today.

In the meantime, if you're keen to get going, a simple fix is to
change third_party/libprocess/include/stout/protobuf.hpp line 131 from:
  } else if (length != size) {
to:
  } else if (static_cast<uint32_t>(length) != size) {

It's interesting this only appears for you now, since this code was from
2011.


On Fri, Dec 7, 2012 at 11:22 AM, Jim Donahue <jd...@adobe.com> wrote:

> This is off of trunk; gcc version is 4.6.2.
>
> Error message is "In function protobuf.hpp in function 'Result<bool>
> protobuf::read(int, google::protobuf::Message*)': ... protobuf.hpp:131:24:
> Comparison between signed and unsigned integer expressions
> [-Werror=signed-compare]"
>
> Jim
>
> -----Original Message-----
> From: Benjamin Mahler [mailto:bmahler@twitter.com]
> Sent: Friday, December 07, 2012 11:09 AM
> To: mesos-dev@incubator.apache.org
> Subject: Re: Error building on Amazon Linux
>
> Thanks for the report, a few questions:
>
> Is this off of trunk?
> Can you provide the gcc version?
> Can you provide the unedited gcc error? (As in something with the line
> number)
>
> Thanks!
>
>
> On Fri, Dec 7, 2012 at 11:04 AM, Jim Donahue <jd...@adobe.com> wrote:
>
> > I just tried building Mesos on Amazon Linux this morning, but it's
> failing
> > compiling protobuf.hpp in function Result<bool> protobuf::read(int,
> > google::protobuf::Message*) with the error:
> >
> >         Comparison between signed and unsigned integer expressions
> > [-Werror=signed-compare]
> >
> > I think I've seen this before ...
> >
> > Jim Donahue
> > Adobe Systems
> >
> >
>

RE: Error building on Amazon Linux

Posted by Jim Donahue <jd...@adobe.com>.

This is off of trunk; gcc version is 4.6.2.

Error message is "In function protobuf.hpp in function 'Result<bool> protobuf::read(int, google::protobuf::Message*)': ... protobuf.hpp:131:24: Comparison between signed and unsigned integer expressions [-Werror=signed-compare]"

Jim

-----Original Message-----
From: Benjamin Mahler [mailto:bmahler@twitter.com] 
Sent: Friday, December 07, 2012 11:09 AM
To: mesos-dev@incubator.apache.org
Subject: Re: Error building on Amazon Linux

Thanks for the report, a few questions:

Is this off of trunk?
Can you provide the gcc version?
Can you provide the unedited gcc error? (As in something with the line
number)

Thanks!

On Fri, Dec 7, 2012 at 11:04 AM, Jim Donahue <jd...@adobe.com> wrote:

> I just tried building Mesos on Amazon Linux this morning, but it's failing
> compiling protobuf.hpp in function Result<bool> protobuf::read(int,
> google::protobuf::Message*) with the error:
>
>         Comparison between signed and unsigned integer expressions
> [-Werror=signed-compare]
>
> I think I've seen this before ...
>
> Jim Donahue
> Adobe Systems
>
>

Re: Error building on Amazon Linux

Posted by Benjamin Mahler <bm...@twitter.com>.

Thanks for the report, a few questions:

Is this off of trunk?
Can you provide the gcc version?
Can you provide the unedited gcc error? (As in something with the line
number)

Thanks!

On Fri, Dec 7, 2012 at 11:04 AM, Jim Donahue <jd...@adobe.com> wrote:

> I just tried building Mesos on Amazon Linux this morning, but it's failing
> compiling protobuf.hpp in function Result<bool> protobuf::read(int,
> google::protobuf::Message*) with the error:
>
>         Comparison between signed and unsigned integer expressions
> [-Werror=signed-compare]
>
> I think I've seen this before ...
>
> Jim Donahue
> Adobe Systems
>
>