I need some help and direction: I've started working on a 'meta-ocaml' layer to add support for the OCaml language to Yocto:
https://gitlab.com/wtolkien/meta-ocaml However, many OCaml projects seem to rely on the 'findlib' library manager (http://projects.camlcity.org/projects/findlib.html) which keeps all information in a fixed system-global path. This seems to conflict with Yocto's sysroot concept. Also, 'findlib' handles dependencies, which is obviously something Yocto would normally do. What's the best way to handle this? Try to make do without findlib? Ideally I'd like to end up with an 'ocaml.bbclass' file that just needs to be included, but maybe that's not achievable? For example, here is findlib's default directory setup when installing it outside of Yocto: About the OCAML core installation: Standard library: /usr/local/lib/ocaml Binaries: /usr/local/bin The directory of site-specific packages will be site-lib: /usr/local/lib/ocaml/site-lib The configuration file is written to: findlib config file: /usr/local/etc/findlib.conf Software will be installed: Libraries: in <site-lib>/findlib Binaries: /usr/local/bin topfind script: /usr/local/lib/ocaml With Yocto (this doesn't seem right...): About the OCAML core installation: Standard library: /opt/src/sumo/build/tmp/work/x86_64-linux/ocaml-native/4.03.0-r0/image/opt/src/sumo-test/build/tmp/work/x86_64-linux/ocaml-native/4.03.0-r0/recipe-sysroot-native/usr/lib Binaries: /opt/src/sumo/build/tmp/work/x86_64-linux/findlib-native/1.8.0-r0/recipe-sysroot-native/usr/bin The directory of site-specific packages will be site-lib: /opt/src/sumo/build/tmp/work/x86_64-linux/ocaml-native/4.03.0-r0/image/opt/src/sumo-test/build/tmp/work/x86_64-linux/ocaml-native/4.03.0-r0/recipe-sysroot-native/usr/site-lib The configuration file is written to: findlib config file: /opt/src/sumo/build/tmp/work/x86_64-linux/findlib-native/1.8.0-r0/recipe-sysroot-native/usr/etc/findlib.conf Software will be installed: Libraries: in <site-lib>/findlib Binaries: /opt/src/sumo/build/tmp/work/x86_64-linux/findlib-native/1.8.0-r0/recipe-sysroot-native/usr/bin topfind script: /opt/src/sumo/build/tmp/work/x86_64-linux/ocaml-native/4.03.0-r0/image/opt/src/sumo-test/build/tmp/work/x86_64-linux/ocaml-native/4.03.0-r0/recipe-sysroot-native/usr/lib Many thanks, Wolfgang -- _______________________________________________ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto
