Davix support

ROOT
1

Both, Ubuntu 14.04 LTS and Ubuntu 16.04 LTS, provide “davix” and “davix-dev” packages (respectively, “0.2.8-1” and “0.5.0-1build1”).

Both ROOT 5 “v5-34-00-patches” and ROOT 6 up to (and including) 6.06/08 were happy with these “davix” libraries.

The newest ROOT 6.08/00 chokes on them. however.
The “cmake” driven configuration still “recognizes” these libraries and automatically sets “davix=ON”, but then the building dies with errors: /.../root-6.08.00/net/davix/src/TDavixFile.cxx: In member function ‘void TDavixFileInternal::setS3Auth(const string&, const string&, const string&, const string&)’: /.../root-6.08.00/net/davix/src/TDavixFile.cxx:300:16: error: ‘class Davix::RequestParams’ has no member named ‘setAwsRegion’ davixParam->setAwsRegion(region); ^ /.../root-6.08.00/net/davix/src/TDavixFile.cxx:301:16: error: ‘class Davix::RequestParams’ has no member named ‘setAwsToken’ davixParam->setAwsToken(token); ^ /.../root-6.08.00/net/davix/src/TDavixFile.cxx: In member function ‘void TDavixFileInternal::parseConfig()’: /.../root-6.08.00/net/davix/src/TDavixFile.cxx:335:22: error: ‘class Davix::RequestParams’ has no member named ‘setAwsRegion’ davixParam->setAwsRegion(env_var); ^ /.../root-6.08.00/net/davix/src/TDavixFile.cxx:340:22: error: ‘class Davix::RequestParams’ has no member named ‘setAwsToken’ davixParam->setAwsToken(env_var); ^
As a result, when configuring ROOT, one needs to manually set “-Ddavix-OFF” or, as an alternative, one may try to set “-Dbuiltin_davix=ON”.

2

I guess the version of davix is too old. So, we need to add the necessary protection to fail finding Davix.

3

need to set region?
need to set STS token?

why don’t you protect these places in the “TDavixFile.cxx” instead, so that ROOT 6 can live with the DEFAULT SYSTEM PROVIDED “davix” libraries?

Ubuntu 14.04 LTS “End of life date” is April 2019
Ubuntu 16.04 LTS “End of life date” is April 2021

4

Don’t know what are you referring with region and STS token

I’ll contact the Davix authors.

5

Hi Pepe. A fix has been committed to 6.08 and master branch by Georgios Bitzes.