Ximin Luo: > Johannes Schauer: >> [..] >> >> Notice, that apscud somehow seems to think that ocaml-native-compilers (= >> 4.02.3-7+b1) is able to satisfy the dependency on "ocaml-best-compilers (>= >> 4.03.0)" even though that version of ocaml-native-compilers does not provide >> a >> specific version of ocaml-best-compilers and should thus not be considered >> for possibly providing a versioned dependency. >> >> [..] >> >> So since the Cudf representation of ocaml-native-compilers (= 4.02.3-7+b1) >> provides "--virtual-ocaml-best-compilers%3aamd64 = 2147483646" it is able to >> satisfy the dependency relationship of sbuild-build-depends-ocamlbuild-dummy. >> >> Thanks! >> > > Thank you josch! So what is the best way forward here? Is it worth us waiting > for apt-cudf to be fixed? > > To answer Ralf before, no ocamlbuild does not strictly *need* a build-depends > on ocaml-best-compilers. But it is nice to do this - especially since we are > recommending this in the OCaml packaging guide - and it has helped us find a > bug. :) > > However if it will take too long to fix, then I could change this to > ocaml-nox (>= 4.03.0) instead, temporarily just so that ocamlbuild enters > Debian and we can proceed with the already-late transition. >
Oh, to clarify the Subject: line for dose-devel: We *were* thinking of making ocaml-best-compilers a non-virtual package, but didn't actually do this. Then, josch pointed out that a versioned-Provides is (in recent times, and in theory) supposed to be able to satisfy a versioned-Build-Depends. So we changed: from ocaml 4.02.3-7 Provides: ocaml-best-compilers to ocaml 4.03.0-5 Provides: ocaml-best-compilers (= 4.03.0-5) and added to ocamlbuild 0.9.3-3 Build-Depends: ocaml-best-compilers (>= 4.03.0) (We need >= 4.03 rather than >= 4.02 because of some technical Debian issue that is not worth going into here. Yes I know it "also works with 4.02".) Other Debian tools can deal with this in the intuitive expected way, but apt-cudf cannot. (Yes this is a relatively new feature, I didn't even know about it until a few days ago.) X -- GPG: ed25519/56034877E1F87C35 GPG: rsa4096/1318EFAC5FBBDBCE https://github.com/infinity0/pubkeys.git
