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reference tables: Document how to set compiler paths with spaces in environment variables 

See #11128
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L. E. Segovia 2023-08-30 22:38:22 -03:00 committed by Eli Schwartz
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@ -377,6 +377,26 @@ machine](#Environment-variables-per-machine) section for details.
*The old environment variables are still supported, but are deprecated
and will be removed in a future version of Meson.*
*changed in 1.3.0* Paths with spaces were split unconditionally to extract
components such as the [path to Ccache](Feature-autodetection.md#ccache),
intrinsic compiler flags like `-m32` or `--target`, etc. This broke passing
a hardcoded compiler path to CMake subprojects. To work around this, paths
must be wrapped with double quotes:
```bash
export CC='"C:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.34.31933/bin/Hostx64/x64/cl.exe"'
```
You can also set the values through [machine files](Machine-files.md#binaries).
*New in 1.3.0* Paths that point to an existing executable no longer need
wrapping:
```bash
export CC='C:/Program Files/Microsoft Visual Studio/2022/Community/VC/Tools/MSVC/14.34.31933/bin/Hostx64/x64/cl.exe'
```
## Environment variables per machine
Since *0.54.0*, Following Autotool and other legacy build systems,