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| author | Valentin Gagarin <valentin.gagarin@tweag.io> | 2023-06-20 13:42:23 +0200 |
|---|---|---|
| committer | Valentin Gagarin <valentin.gagarin@tweag.io> | 2023-07-19 10:37:40 +0200 |
| commit | 3763c7bb5ef5a7a1ddcf47169c9733edb7989e98 (patch) | |
| tree | 2aef05476bce804ffd4534886db3de13933c6a96 /src/libstore | |
| parent | c8a42039eae4c046297517b67a3ce43685d3e756 (diff) | |
shorten `system` setting description
Diffstat (limited to 'src/libstore')
| -rw-r--r-- | src/libstore/globals.hh | 38 |
1 files changed, 6 insertions, 32 deletions
diff --git a/src/libstore/globals.hh b/src/libstore/globals.hh index 1fb5927d0..442d72911 100644 --- a/src/libstore/globals.hh +++ b/src/libstore/globals.hh @@ -194,12 +194,12 @@ public: this, SYSTEM, "system", R"( The system type of the current Nix installation. - - Nix can only build [derivations](@docroot@/language/derivations.md) whose `system` attribute equals the value specified here. - In general, it never makes sense to modify this value, since you can use it to ‘lie’ about the system you are building on (e.g., perform a macOS build on a Linux machine; the result would obviously be wrong). - It only makes sense if the Nix binaries can run on multiple platforms, e.g., ‘universal binaries’ that run on `x86_64-linux` and `i686-linux`. + Nix will only build [derivations](@docroot@/language/derivations.md) whose `system` attribute equals the value specified here. The default value is set when Nix itself is compiled for the system it will run on. + In general, it never makes sense to modify this value. + While you can force Nix to run a Darwin-specific `builder` executable on a Linux machine, the result would obviously be wrong. + The following system types are widely used, as Nix is actively supported on these platforms: - `x86_64-linux` @@ -207,35 +207,9 @@ public: - `i686-linux` - `aarch64-linux` - `aarch64-darwin` + - `armv6l-linux` + - `armv7l-linux` - The concrete value is based on the output of [`config.guess`](https://git.savannah.gnu.org/cgit/config.git/tree/config.guess): - - ``` - <cpu>-<vendor>-<os>[<version>][-<abi>] - ``` - - When Nix is built such that `./configure` is passed any of the `--host`, `--build`, `--target` options, the value is based on the output of [`config.sub`](https://git.savannah.gnu.org/cgit/config.git/tree/config.sub): - - ``` - <cpu>-<vendor>[-<kernel>]-<os> - ``` - - Nix only uses the CPU and OS identifiers: - - ``` - <cpu>-<os>[-<abi>] - ``` - - For historic reasons and backwards-compatibility, some CPU and OS identifiers are transformed as follows: - - | `config.guess` | Nix | - |----------------------------|---------------------| - | `amd64` | `x86_64` | - | `i*86` | `i686` | - | `arm6` | `arm6l` | - | `arm7` | `arm7l` | - | `linux-gnu*` | `linux` | - | `linux-musl*` | `linux` | )"}; Setting<time_t> maxSilentTime{ |