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Add comments explaining the purpose of the postBuild prepend

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svn path=/nixpkgs/trunk/; revision=27922
This commit is contained in:
Shea Levy
2011-07-24 20:24:23 +00:00
parent 5db8c88547
commit 20ebca303e
1 changed files with 5 additions and 0 deletions
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pkgs/os-specific/linux/kernel/generic.nix
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@@ -77,6 +77,11 @@ stdenv.mkDerivation {
inherit preConfigure src module_init_tools localVersion postInstall; inherit preConfigure src module_init_tools localVersion postInstall;
#Currently, the builder sets $MODULE_DIR during installPhase. This causes
#problems with at least linux 3.0, so we need to conditionally avoid
#setting $MODULE_DIR. This prepend to postBuild accomplishes this with a
#sed/eval trick thanks to MarcWeber
postBuild = (if setModuleDir then "" else '' postBuild = (if setModuleDir then "" else ''
eval "$(type installPhase | sed -e '1d' -e '/export MODULE_DIR/d')"; eval "$(type installPhase | sed -e '1d' -e '/export MODULE_DIR/d')";
'') + postBuild; '') + postBuild;