# CMake preset and VsDevCmd.bat / yocto environment
**URL:** https://discourse.cmake.org/t/cmake-preset-and-vsdevcmd-bat-yocto-environment/3519
**Category:** Usage
**Created:** [June 7, 2021, 12:59pm UTC](https://discourse.cmake.org/t/cmake-preset-and-vsdevcmd-bat-yocto-environment/3519 "2021-06-07T12:59:16Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@KUGA2](https://discourse.cmake.org/u/KUGA2)
#### Post date: [June 7, 2021, 12:59pm UTC](https://discourse.cmake.org/t/cmake-preset-and-vsdevcmd-bat-yocto-environment/3519/1 "2021-06-07T12:59:16Z")
There is the environment element in `CMakePresets.json` to specify environment variables.
However, the _usual_ way to get the build tools into PATH and other variables is to run a script before executing cmake.
Can this be done via presets? Or do I still need to to this manually before?
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### Author:  [@ben.boeckel](https://discourse.cmake.org/u/ben.boeckel)
#### Post date: [June 7, 2021, 1:00pm UTC](https://discourse.cmake.org/t/cmake-preset-and-vsdevcmd-bat-yocto-environment/3519/2 "2021-06-07T13:00:38Z")
I don’t think presets changed that behavior. @kyle.edwards?
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### Author:  [@kyle.edwards](https://discourse.cmake.org/u/kyle.edwards)
#### Post date: [June 7, 2021, 1:38pm UTC](https://discourse.cmake.org/t/cmake-preset-and-vsdevcmd-bat-yocto-environment/3519/3 "2021-06-07T13:38:37Z")
No, there are currently no plans to make `CMakePresets.json` read from or interact with `vcvarsall.bat`. At most, in the future we _may_ add functionality to _verify_ that `vcvarsall.bat` has been run correctly, but not actually run it from CMake.
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### Author:  [@KUGA2](https://discourse.cmake.org/u/KUGA2)
#### Post date: [June 7, 2021, 2:14pm UTC](https://discourse.cmake.org/t/cmake-preset-and-vsdevcmd-bat-yocto-environment/3519/4 "2021-06-07T14:14:27Z")
Ok 😭, but I understand why this is not in the core interest of CMake.
We really could have used this feature, since we have multiple targets with different build environments.
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### Author:  [@KUGA2](https://discourse.cmake.org/u/KUGA2)
#### Post date: [June 30, 2021, 9:47am UTC](https://discourse.cmake.org/t/cmake-preset-and-vsdevcmd-bat-yocto-environment/3519/5 "2021-06-30T09:47:03Z")
> At most, in the future we _may_ add functionality to _verify_ that `vcvarsall.bat` has been run correctly
This is perfectly clear from the [documentation](https://cmake.org/cmake/help/latest/manual/cmake-presets.7.html#condition), but I just noticed this a few days ago. This feature can be done today (CMake 3.21) by checking VS env vars in conditions. e.g.:
```auto
"condition": {
"type": "allOf",
"conditions": [
{
"type": "equals",
"lhs": "$env{VSCMD_ARG_TGT_ARCH}",
"rhs": "x64"
},
{
"type": "matches",
"string": "$env{VSCMD_VER}",
"regex": "16\\.[0-9]+\\.[0-9]+"
}
]
}
```