[bug] MesonToolchain: Doesn't configure the default install destination directories as expected

[jwillikers]

Environment Details (include every applicable attribute)

• Operating System+version: Fedora Linux 36
• Compiler+version: GCC 12
• Conan version: 1.50.0
• Python version: 3.10.5

Steps to reproduce (Include if Applicable)

Using the MesonToolchain, create any package on a RHEL system which uses lib64 instead of lib or which packages anything in the default datadir, mandir, localedir, or infodir.

Many Conan recipes expect recipes to install libraries under the lib directory and under the res directory during the package step. MesonToolchain and/or Meson could configure these defaults with how Conan expects these directories to be organized, but it doesn't do that at the moment.

Things may be installed under lib64 on RHEL systems and many things end up in the share directory.

Right now, the workaround I use is to configure MesonToolchain with project_options to set libdir, datadir, localedir, mandir, and infodir as appropriate.

I had to open the PR conan-io/conan-center-index#11347 to fix man pages being installed to an incorrect location in the package method.
See conan-io/conan-center-index#11610 and conan-io/conan-center-index#11580 for instances where this has been necessary.

Logs (Executed commands with output) (Include/Attach if Applicable)

[SSE4]

might be related to #9713 @franramirez688 ?

[franramirez688]

Closed by #11618
It'll be released in the next Conan 1.51 version.