gnu: Add rust-1.79.

* gnu/packages/rust.scm (rust-1.79): New variable.

Change-Id: Idf54e6504eca7e8cf8a49e664e5aa6c8ff18555d

gnu/packages/rust.scm

@@ -985,6 +985,32 @@ safety and thread safety guarantees.")
   (rust-bootstrapped-package
    rust-1.77 "1.78.0" "1afmj5g3bz7439w4i8zjhd68zvh0gqg7ymr8h5rz49ybllilhm7z"))
 
+(define-public rust-1.79
+  (let ((base-rust (rust-bootstrapped-package rust-1.78 "1.79.0"
+                    "1h282jb1yxc69999w4nhvqb08rw2jy32i9njdjqrz78zglycybhp")))
+    (package
+      (inherit base-rust)
+      (source
+       (origin
+         (inherit (package-source base-rust))
+         (snippet
+          '(begin
+             (for-each delete-file-recursively
+                       '("src/llvm-project"
+                         "vendor/jemalloc-sys-0.5.4+5.3.0-patched/jemalloc"
+                         "vendor/openssl-src-111.28.1+1.1.1w/openssl"
+                         "vendor/tikv-jemalloc-sys-0.5.4+5.3.0-patched/jemalloc"))
+             ;; Remove vendored dynamically linked libraries.
+             ;; find . -not -type d -executable -exec file {} \+ | grep ELF
+             ;; Also remove the bundled (mostly Windows) libraries.
+             (for-each delete-file
+                       (find-files "vendor" "\\.(a|dll|exe|lib)$"))
+             ;; Adjust vendored dependency to explicitly use rustix with libc backend.
+             (substitute* '("vendor/tempfile-3.7.1/Cargo.toml"
+                            "vendor/tempfile-3.10.1/Cargo.toml")
+               (("features = \\[\"fs\"" all)
+                (string-append all ", \"use-libc\""))))))))))
+
 (define (make-ignore-test-list strs)
   "Function to make creating a list to ignore tests a bit easier."
   (map (lambda (str)