On Aug 16, 2012, at 4:06 AM, Andre Fischer wrote: > On 16.08.2012 12:48, Ariel Constenla-Haile wrote: >> On Thu, Aug 16, 2012 at 09:30:13AM +0200, Andre Fischer wrote: >>>> Sorry, I'm a bit cranky right now. My cpan disappeared while trying >>>> to assure that I had the now required LWP::UserAgent. No one tested >>>> the new download_external_dependencies.pl properly. >>> >>> 1. LWP::UserAgent has been a prerequisite for years. But I think >>> I remember that it was temporarily removed from one of the older >>> platform specific build instruction pages. >>> >>> 2. Can you be more specific regarding your problems with >>> download_external_dependencies.pl so that I can fix it? It exists >>> under this name for more than two months and since it is used in >>> every setup of a build I would say that it is fairly well tested. >>> But that does not mean that it is error free. >> >> He might have found something similar to this: >> http://markmail.org/message/pqre775ds3m4y3jg > > Hm, I did not perceive this as a persisting problem. It seemed to have a > simple solution.
That was exactly the trouble. Somewhere in the build guide this should highlighted under Perl Dependencies. The other part is that it should describe the proper cpan commands. I basically ended up with my permissions modified on cpan. I fixed this and then I had to upgrade LWP::UserAgent The building guide needs to be oriented towards a rather neophyte developer. Already we getting the guides lined up with the README. > >> >> He has LWP::UserAgent but it's too old, a method is missing, so he tries >> to update the module with cpan. Updating Perl like this may brake other >> things in your system, I prefer keeping the system as it came, and >> install a local perl version. > > If that is really the problem and updating Perl really is such a problem (I > never experienced it as one) then I could try to make the use of > LWP::UserAgent more compatible with older versions. > > The biggest problem might be to lay hands on such old versions in a running > system. Having clear update LWP::UserAgent instructions for those who don't know cpan would be enough. Regards, Dave > >> >> IMO there is no fix for this: we check the perl version, we check the >> presence of LWP::UserAgent, but: does it make sense to check the >> LWP::UserAgent version too? Is it possible at all? The perl module does >> not document when a specific method was introduced, or I least >> I couldn't find that info in >> http://search.cpan.org/~gaas/libwww-perl-6.04/lib/LWP/UserAgent.pm there >> is not such thing as a @since tag. > > First we have to identify this as a real problem. Then we (I, you, or > anybody else) are certainly able to find a solution. We might even use an > alternative to LWP::UserAgent. > > -Andre >
