update meson package on ubuntu

Manfred Hampl suggests this article as an answer to your question:
FAQ #3037: “no rolling release”.

Ubuntu 22.04 (to be published in April next year) will have meson version 0.60.1 (or higher).

There are PPAs with updated versions for older releases like Ubuntu 20.04, e.g. https://launchpad.net/~ubuntu-support-team/+archive/ubuntu/meson
This may help as a workaround. (Standard disclaimer for PPAs applies of course.)

actually we need new meson version because meson with version >= 0.59 is recognize cuda compiler only, others fail to build.

for now if I want to update package for ubuntu20/18, we have to use the PPAs right?

No, packages are updated if they fall out of support or have issues that upgrading would take them to the next version.

the LTS releases are stable, meaning that the package versions rarely change and minor updates are applied if necessary. You can add PPAs if you want a newer version or even build your own from source.

Thanks at first, I want to ask do you knew before about cuda issues with meson version?

According to https://mesonbuild.com/Dependencies.html#cuda CUDA support has been added in version 0.53.0

right I saw that, but we encounter that meson with version greater than 0.59 is identify successfully cuda compiler nvcc..!

Which problem do you have with neson and cuda?

when I run meson with version 0.53.2 appears an error as below:

 ERROR: Could not find suitable CUDA compiler: "nvcc"

when I run meson with version >= 0.59 (meson.py),the run success.
for that I need to update meson version on current package.

/usr/bin/nvcc is contained in the nvidia-cuda-toolkit. I do not see any relationship to the meson version.

but then why when we run with meson version 0.59 this error don't show?!

"with meson version 0.59 this error don't show"

If you already can use meson version 0.59, what exactly do you need now?

I run meson file with 0.59 version from tar directory; "/path_to_directory/meson.py build" and we don't want run meson in this way.

we want run by "meson build", because is more comfortable and not require from the client to download the dir and run like this manually. so to do that we need packages for meson with version >= 0.59

If you add the folder with the script in it to your path variable then you can do this. I also suggest making a hard link to the python file with the same name but without the file extension. It will then work exactly how you state

There are three possibilities:

1. Request an upgrade of the meson package for Ubuntu 20.04 by creating a bug report to request a SRU or backport. It is rather unlikely that this will be accepted, see FAQ #3037
2. Upgrade to a higher Ubuntu release (for meson 0.60.* you need to upgrade to the development release, which is not recommended)
3. Install the desired version by building it yourself from source or by using a PPA (already written in comment #2)