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top-level: Make cross compiling slightly saner

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Removes the weird stdenv cycle used to match the old infrastructure.
It turns out that matching it so precisely is not needed.
This commit is contained in:
John Ericson 2016-11-11 06:34:24 -08:00 committed by Nicolas B. Pierron
parent 645e2b55e5
commit f68e16f023
2 changed files with 16 additions and 15 deletions
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20
pkgs/stdenv/cross/default.nix
View File

@ -8,24 +8,22 @@ rec {
};
vanillaStdenv = (import ../. (args // argClobber // {
allPackages = args: allPackages (argClobber // args);
})).stdenv;
})).stdenv // {
# Needed elsewhere as a hacky way to pass the target
cross = crossSystem;
};
# Yeah this isn't so cleanly just build-time packages yet. Notice the
# buildPackages <-> stdenvCross cycle. Yup, it's very weird.
#
# This works because the derivation used to build `stdenvCross` are in
# fact using `forceNativeDrv` to use the `nativeDrv` attribute of the resulting
# derivation built with `vanillaStdenv` (second argument of `makeStdenvCross`).
#
# Eventually, `forceNativeDrv` should be removed and the cycle broken.
# For now, this is just used to build the native stdenv. Eventually, it should
# be used to build compilers and other such tools targeting the cross
# platform. Then, `forceNativeDrv` can be removed.
buildPackages = allPackages {
# It's OK to change the built-time dependencies
allowCustomOverrides = true;
bootStdenv = stdenvCross;
bootStdenv = vanillaStdenv;
inherit system platform crossSystem config;
};
stdenvCross = buildPackages.makeStdenvCross
vanillaStdenv crossSystem
buildPackages.stdenv crossSystem
buildPackages.binutilsCross buildPackages.gccCrossStageFinal;
}

11
pkgs/top-level/all-packages.nix
View File

@ -46,10 +46,13 @@ in
callPackage_i686 = lib.callPackageWith (pkgsi686Linux // pkgsi686Linux.xorg);
forceNativeDrv = drv : if crossSystem == null then drv else
(drv // { crossDrv = drv.nativeDrv; });
stdenvCross = lowPrio (makeStdenvCross defaultStdenv crossSystem binutilsCross gccCrossStageFinal);
forceNativeDrv = drv:
# Even when cross compiling, some packages come from the stdenv's
# bootstrapping package set. Those packages are only built for the native
# platform.
if crossSystem != null && drv ? crossDrv
then drv // { crossDrv = drv.nativeDrv; }
else drv;
# A stdenv capable of building 32-bit binaries. On x86_64-linux,
# it uses GCC compiled with multilib support; on i686-linux, it's