xorg/system: Modernize

[jwillikers]

Use tools.system.package_manager ang tools.gnu.PkgConfig from the conan namespace.
This greatly reduces complexity of the package.

Specify library name and version: xorg/system

• I've read the guidelines for contributing.
• I've followed the PEP8 style guides for Python code in the recipes.
• I've used the latest Conan client version.
• I've tried at least one configuration locally with the conan-center hook activated.

[jwillikers]

please, don't force-push, it prevents from doing incremental reviews

Sorry about that, I wasn't aware.

[jwillikers]

1. This fails on FreeBSD with a lot of ld: error: unable to find library -lxcb when linking the test package cf https://github.com/bincrafters/system-packages-checks/runs/7356617446?check_suite_focus=true#step:3:17496. These libraries have properly been installed above. Is the library path propagated ?

Most likely /usr/local/lib is not in the default linker search path?

2. This fails on debian 10 with dpkg-query: no packages found matching libxcb-util-dev and dpkg-query: no packages found matching libxcb-util0-dev https://github.com/bincrafters/system-packages-checks/runs/7356633944?check_suite_focus=true#step:6:814

Hopefully the changes to the substitutes method have fixed this.

3. alma linux fails with ERROR: while executing system_requirements(): Error 100 while executing yum check-update -y This has to be solved in conan

No match for argument: libfontenc-devel
No match for argument: libXdmcp-devel
No match for argument: libxkbfile-devel
No match for argument: libXres-devel
No match for argument: libXvMC-devel
No match for argument: xorg-x11-xtrans-devel
No match for argument: xcb-util-wm-devel
No match for argument: xcb-util-image-devel
No match for argument: xcb-util-keysyms-devel
No match for argument: xcb-util-renderutil-devel
No match for argument: xcb-util-devel

Looks like the -devel versions of the library aren't available in Alma Linux. How should we handle this? We could use the substitutes method with an empty list, but maybe xorg/system should just fail with an error at that point?

4. fedora, opensuse and centos don't install any package. You have to add DNF handling to this PR

Added explicit DNF support.

[ericLemanissier]

@jgsogo @danimtb is there a plan to add tools.system.package_manager:mode=install config on C3I ?

[ericLemanissierBot]

I detected other pull requests that are modifying xorg/all recipe:

• xorg: check .pc files #11872

This message is automatically generated by https://github.com/ericLemanissier/conan-center-conflicting-prs so don't hesitate to report issues/improvements there.

[jgsogo]

@jgsogo @danimtb is there a plan to add tools.system.package_manager:mode=install config on C3I ?

I guess this is the equivalent in v2 to conan config set general.sysrequires_mode=enabled, right?

[ericLemanissier]

yes : https://docs.conan.io/en/latest/reference/conanfile/tools/system/package_manager.html#configuration-properties-that-affect-how-system-package-managers-are-invoked
The difference is that it can be set in:

• global.conf
• the profile
• the commande line with -c

[ericLemanissier]

@jwillikers it seems it should work now https://github.com/conan-io/conan-center-index/pull/11859/files#diff-77f023b99d3d58008351d3e82fc06e6d06ba1bc2da9e41be6329b7fa4f419f05R10
Can you close/reopen ?

[jwillikers]

@jwillikers it seems it should work now https://github.com/conan-io/conan-center-index/pull/11859/files#diff-77f023b99d3d58008351d3e82fc06e6d06ba1bc2da9e41be6329b7fa4f419f05R10 Can you close/reopen ?

Sorry, had to rebase and force push. Nothing has actually changed in the PR.

[conan-center-bot]

All green in build 10 (2ffbcf0203d1fb34c2916b8fbe203c1c1b2c7191):

• xorg/system@:
  All packages built successfully! (All logs)