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Merge pull request #10365 from davidhorstmann-arm/clarify-file-generation-cc

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Clarify use of `CC` and friends for file generation
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David Horstmann
2025-08-20 09:07:38 +00:00
committed by GitHub
parent 265e98da45 24e3388cf3
commit 7ec90c254f
1 changed files with 7 additions and 1 deletions
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README.md
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@@ -72,7 +72,13 @@ The following tools are required:
Depending on your Python installation, you may need to invoke `python` instead of `python3`. To install the packages system-wide, omit the `--user` option. Depending on your Python installation, you may need to invoke `python` instead of `python3`. To install the packages system-wide, omit the `--user` option.
* A C compiler for the host platform, for some test data. * A C compiler for the host platform, for some test data.
If you are cross-compiling, you must set the `CC` environment variable to a C compiler for the host platform when generating the configuration-independent files. The scripts that generate the configuration-independent files will look for a host C compiler in the following places (in order of preference):
1. The `HOSTCC` environment variable. This can be used if `CC` is pointing to a cross-compiler.
2. The `CC` environment variable.
3. An executable called `cc` in the current path.
Note: If you have multiple toolchains installed, it is recommended to set `CC` or `HOSTCC` to the intended host compiler before generating the files.
Any of the following methods are available to generate the configuration-independent files: Any of the following methods are available to generate the configuration-independent files: