58 lines
2.1 KiB
Markdown
58 lines
2.1 KiB
Markdown
# wafHook {#waf-hook}
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[Waf](https://waf.io) is a Python-based software building system.
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In Nixpkgs, `wafHook` overrides the default configure, build, and install phases.
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## Variables controlling wafHook {#waf-hook-variables-controlling}
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### `wafHook` Exclusive Variables {#waf-hook-exclusive-variables}
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The variables below are exclusive of `wafHook`.
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#### `wafPath` {#waf-path}
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Location of the `waf` tool. It defaults to `./waf`, to honor software projects that include it directly inside their source trees.
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If `wafPath` doesn't exist, then `wafHook` will copy the `waf` provided from Nixpkgs to it.
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#### `wafFlags` {#waf-flags}
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Controls the flags passed to waf tool during build and install phases. For settings specific to build or install phases, use `wafBuildFlags` or `wafInstallFlags` respectively.
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#### `dontAddWafCrossFlags` {#dont-add-waf-cross-flags}
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When set to `true`, don't add cross compilation flags during configure phase.
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#### `dontUseWafConfigure` {#dont-use-waf-configure}
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When set to true, don't use the predefined `wafConfigurePhase`.
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#### `dontUseWafBuild` {#dont-use-waf-build}
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When set to true, don't use the predefined `wafBuildPhase`.
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#### `dontUseWafInstall` {#dont-use-waf-install}
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When set to true, don't use the predefined `wafInstallPhase`.
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### Similar variables {#waf-hook-similar-variables}
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The following variables are similar to their `stdenv.mkDerivation` counterparts.
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| `wafHook` Variable | `stdenv.mkDerivation` Counterpart |
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|-----------------------|-----------------------------------|
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| `wafConfigureFlags` | `configureFlags` |
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| `wafConfigureTargets` | `configureTargets` |
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| `wafBuildFlags` | `buildFlags` |
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| `wafBuildTargets` | `buildTargets` |
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| `wafInstallFlags` | `installFlags` |
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| `wafInstallTargets` | `installTargets` |
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### Honored variables {#waf-hook-honored-variables}
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The following variables commonly used by `stdenv.mkDerivation` are honored by `wafHook`.
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- `prefixKey`
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- `enableParallelBuilding`
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- `enableParallelInstalling`
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