binutils: apply debian's patch if isMips64n64 #167489
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Upstream binutils is missing sensible defaults for a few flags (notably linker personality) when cross-compiling to mips64el-*-*abi64. Most of the time this isn't an issue because packages that invoke the linker directly detect the flags from gcc's behavior (for example, libtool does this) and gcc has good code for detecting the right defaults. However some do not; notably nix, itself lacks this. Presumably Debian is working on upstreaming this, and has more clout than we do. I propose we carry their patch in the meantime. The patch is conditioned on stdenv.targetPlatform.isMips64n64 in order to avoid mass-rebuilds. Closes #164835.
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6.topic: cross-compilation
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Description of changes
Upstream binutils is missing sensible defaults for a few flags (notably linker personality) when cross-compiling to
mips64el-*-*abi64.Most of the time this isn't an issue because packages that invoke the linker directly detect the flags from gcc's behavior (for example, libtool does this) and gcc has good code for detecting the right defaults. However some do not; notably nix, itself lacks this.
Presumably Debian is working on upstreaming this, and has more clout than we do. I propose we carry their patch in the meantime. The patch is conditioned on
stdenv.targetPlatform.isMips64n64in order to avoid mass-rebuilds.This plus #161162 can build
nix_2_4natively and can cross-buildpkgsCross.mips64el-linux-gnuabi64.pkgsStatic.nix_2_4from x86_64.Things done
sandbox = trueset innix.conf? (See Nix manual)./result/bin/)