On 2017-09-28 11:31 AM, Digimer wrote: > On 2017-09-28 05:04 AM, Paul Howarth wrote: >> On 2017-09-28 08:42, Digimer wrote: >>> Hi all, >>> >>> This is my first post, apologies if I am off-topic; >>> >>> I'm trying to build perl-Moose, which depends on perl-Data-Visitor, >>> but perl-Data-Visitor depends on perl-Moose; >>> >>> ==== >>> [digimer@el7-builder-test1 SPECS]$ rpmbuild -ba perl-Moose.spec >>> error: Failed build dependencies: >>> perl(Data::Visitor) is needed by >>> perl-Moose-2.1005-1.el7.centos.x86_64 >>> [digimer@el7-builder-test1 SPECS]$ rpmbuild -ba perl-Data-Visitor.spec >>> error: Failed build dependencies: >>> perl(Moose) >= 0.89 is needed by >>> perl-Data-Visitor-0.30-1.el7.centos.noarch >>> ==== >>> >>> I am wondering how EPEL repos solved this problem... I grabbed the >>> source for both from EPEL. Now, I know I could install perl-Data-Visitor >>> from EPEL, then build perl-Moose, install that, then rebuild >>> perl-Data-Visitor but I am trying to learn more about package >>> management, which is why I am asking here to find out what is the proper >>> way to solve this. >> >> A bootstrapping process is used to resolve this issue. >> >> First, the perl-Moose package is built with the %perl_bootstrap rpm >> macro set to 1. This could be set in the build system, or by editing the >> perl-Moose spec file to set it (which is what's done in EPEL). This >> allows perl-Moose to be built without perl-Data-Visitor or any other >> module that would result in circular build dependencies. >> >> Once perl-Moose has been built, the %perl_bootstrap rpm macro can be >> removed, either from the build system or the spec file as necessary. >> >> It's then possible to build perl-Data-Visitor etc. >> >> Finally, perl-Moose is rebuilt without %perl_bootstrap, which improves >> test coverage by pulling in all of the build requirements that were >> omitted for the bootstrap build. >> >> You can see the bootstrapping process by looking at the commit history >> for the epel7 branch: >> https://src.fedoraproject.org/rpms/perl-Moose/commits/epel7 >> >> Paul. > > Excellent, thanks! > > Can I ask another question? (Ya, I'm new...), is there a doc you > recommend on using macros? I assume you mean the .spec option is to > comment out the requires line for perl-Data-Visitor? To answer my own question, and for the archives... rpmbuild -ba --define 'perl_bootstrap 1' perl-Moose.spec Thanks again! -- Digimer Papers and Projects: https://alteeve.com/w/ "I am, somehow, less interested in the weight and convolutions of Einstein’s brain than in the near certainty that people of equal talent have lived and died in cotton fields and sweatshops." - Stephen Jay Gould _______________________________________________ epel-devel mailing list -- epel-devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to epel-devel-leave@xxxxxxxxxxxxxxxxxxxxxxx
