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Was talking with Brian about the build environment and how settings were |
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to be passed into the build environment. |
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Essentially three scenarios were presented. |
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1) The full environment is passed to the build environment. This was |
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generally agreed upon to be bad since there are environmental things |
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that can cause build problems. |
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|
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2) The full environment is parsed via a blacklist to strip out |
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environment settings that are known to be bad for building packages. |
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This leads to a clean* build environment. However, maintaining the |
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blacklist can be a challenge if it grows in size. |
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(*) clean, meaining all the bad things we know about are not in the |
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build environment. This does not account for the bad things we do NOT |
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know about. |
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|
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3) The full environment is parsed via a whitelist to get a list of |
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environment settings that are known to be good for building packages. |
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This leads to a clean build environment, as only whitelisted environment |
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settings are passed in. However, the whitelist will probably be worse |
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to maintain than a blacklist. |
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Both 2) and 3) above have issues where some build variables are bad for |
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ebuild X but not ebuild Y. I am unsure how exactly to cover any kind of |
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situation like that ( and I don't have an example from the tree, save |
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perhaps LANG=weird-language ). |
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To me 1) is unacceptable and 3) is the best option. Feel free to shoot |
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these down as you see fit ;) |
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- -Alec Warner (antarus) |
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-- |
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