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|
{
lib,
nvccCompatibilities,
cudaVersion,
pkgs,
overrideCC,
stdenv,
wrapCCWith,
stdenvAdapters,
}:
let
gccMajorVersion = nvccCompatibilities.${cudaVersion}.gccMaxMajorVersion;
cudaStdenv = stdenvAdapters.useLibsFrom stdenv pkgs."gcc${gccMajorVersion}Stdenv";
passthruExtra = {
nixpkgsCompatibleLibstdcxx = lib.warn "cudaPackages.backendStdenv.nixpkgsCompatibleLibstdcxx is misnamed, deprecated, and will be removed after 24.05" cudaStdenv.cc.cxxStdlib.package;
# cc already exposed
};
assertCondition = true;
in
/*
# We should use libstdc++ at least as new as nixpkgs' stdenv's one.
assert let
cxxStdlibCuda = cudaStdenv.cc.cxxStdlib.package;
cxxStdlibNixpkgs = stdenv.cc.cxxStdlib.package;
# Expose the C++ standard library we're using. See the comments on "General
# libc++ support". This is also relevant when using older gcc than the
# stdenv's, as may be required e.g. by CUDAToolkit's nvcc.
cxxStdlib = libcxx:
let
givenLibcxx = libcxx != null && (libcxx.isLLVM or false);
givenGccForLibs = libcxx != null && !(libcxx.isLLVM or false) && (libcxx.isGNU or false);
libcxx_solib = "${lib.getLib libcxx}/lib";
in
if (!givenLibcxx) && givenGccForLibs then
{ kind = "libstdc++"; package = libcxx; solib = libcxx_solib; }
else if givenLibcxx then
{ kind = "libc++"; package = libcxx; solib = libcxx_solib;}
else
# We're probably using the `libstdc++` that came with our `gcc`.
# TODO: this is maybe not always correct?
# TODO: what happens when `nativeTools = true`?
{ kind = "libstdc++"; package = cc; solib = cc_solib; }
;
in
((stdenv.cc.cxxStdlib.kind or null) == "libstdc++")
-> lib.versionAtLeast cxxStdlibCuda.version cxxStdlibNixpkgs.version;
*/
lib.extendDerivation assertCondition passthruExtra cudaStdenv
|
