1 files changed, 44 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/compilers/rust/1_42.nix b/nixpkgs/pkgs/development/compilers/rust/1_42.nix
new file mode 100644
index 000000000000..8717aaf76a23
--- /dev/null
+++ b/nixpkgs/pkgs/development/compilers/rust/1_42.nix
@@ -0,0 +1,44 @@
+# New rust versions should first go to staging.
+# Things to check after updating:
+# 1. Rustc should produce rust binaries on x86_64-linux, aarch64-linux and x86_64-darwin:
+#    i.e. nix-shell -p fd or @GrahamcOfBorg build fd on github
+#    This testing can be also done by other volunteers as part of the pull
+#    request review, in case platforms cannot be covered.
+# 2. The LLVM version used for building should match with rust upstream.
+# 3. Firefox and Thunderbird should still build on x86_64-linux.
+
+{ stdenv, lib
+, buildPackages
+, newScope, callPackage
+, CoreFoundation, Security
+, llvmPackages_5
+, pkgsBuildTarget, pkgsBuildBuild
+} @ args:
+
+import ./default.nix {
+  rustcVersion = "1.42.0";
+  rustcSha256 = "0x9lxs82may6c0iln0b908cxyn1cv7h03n5cmbx3j1bas4qzks6j";
+
+  # Note: the version MUST be one version prior to the version we're
+  # building
+  bootstrapVersion = "1.41.0";
+
+  # fetch hashes by running `print-hashes.sh 1.42.0`
+  bootstrapHashes = {
+    i686-unknown-linux-gnu = "a93a34f9cf3d35de2496352cb615b42b792eb09db3149b3a278efd2c58fa7897";
+    x86_64-unknown-linux-gnu = "343ba8ef7397eab7b3bb2382e5e4cb08835a87bff5c8074382c0b6930a41948b";
+    arm-unknown-linux-gnueabihf = "d0b33fcc97eeb96d716b30573c7e66affdf9077ecdecb30df2498b49f8284047";
+    armv7-unknown-linux-gnueabihf = "3c8e787fb4f4f304a065e78c38010f0b5722d809f9dafb0e904084bf0f54f7be";
+    aarch64-unknown-linux-gnu = "79ddfb5e2563d0ee09a567fbbe121a2aed3c3bc61255b2787f2dd42183a10f27";
+    i686-apple-darwin = "628134b3fbaf5c0e7a25bd9a2b8d25f6e68bb256c8b04a3332ec979f5a1cd339";
+    x86_64-apple-darwin = "b6504003ab70b11f278e0243a43ba9d6bf75e8ad6819b4058a2b6e3991cc8d7a";
+  };
+
+  selectRustPackage = pkgs: pkgs.rust_1_42;
+
+  rustcPatches = [
+    ./0001-Allow-getting-no_std-from-the-config-file.patch
+  ];
+}
+
+(builtins.removeAttrs args [ "fetchpatch" ])