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[PATCH] gnu: rustc: Retain binutils.

From: David Craven
Subject: [PATCH] gnu: rustc: Retain binutils.
Date: Mon, 9 Jan 2017 14:45:34 +0100

* gnu/packages/rust.scm (rustc)[arguments]: Retain binutils. Add
  wrap-rustc phase.

Problem reported by Ben Woodcroft <address@hidden>.
 gnu/packages/rust.scm | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/gnu/packages/rust.scm b/gnu/packages/rust.scm
index 97d0d7cb0..ae0453004 100644
--- a/gnu/packages/rust.scm
+++ b/gnu/packages/rust.scm
@@ -241,6 +241,7 @@ rustc-bootstrap and cargo-bootstrap packages.")
            (lambda* (#:key inputs outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))
                     (gcc (assoc-ref inputs "gcc"))
+                    (binutils (assoc-ref inputs "binutils"))
                     (python (assoc-ref inputs "python-2"))
                     (rustc (assoc-ref inputs "rustc-bootstrap"))
                     (llvm (assoc-ref inputs "llvm"))
@@ -250,7 +251,7 @@ rustc-bootstrap and cargo-bootstrap packages.")
                             (string-append "--datadir=" out "/share")
                             (string-append "--infodir=" out "/share/info")
                             (string-append "--default-linker=" gcc "/bin/gcc")
-                            (string-append "--default-ar=" gcc "/bin/ar")
+                            (string-append "--default-ar=" binutils "/bin/ar")
                             (string-append "--python=" python "/bin/python2")
                             (string-append "--local-rust-root=" rustc)
                             (string-append "--llvm-root=" llvm)
@@ -261,7 +262,16 @@ rustc-bootstrap and cargo-bootstrap packages.")
                ;; Rust uses a custom configure script (no autoconf).
-               (zero? (apply system* "./configure" flags))))))))
+               (zero? (apply system* "./configure" flags)))))
+         (add-after 'install 'wrap-rustc
+           (lambda* (#:key inputs outputs #:allow-other-keys)
+             (let ((out (assoc-ref outputs "out"))
+                   (libc (assoc-ref inputs "libc"))
+                   (ld-wrapper (assoc-ref inputs "ld-wrapper")))
+               ;; Let gcc find ld and libc startup files.
+               (wrap-program (string-append out "/bin/rustc")
+                 `("PATH" ":" prefix (,(string-append ld-wrapper "/bin")))
+                 `("LIBRARY_PATH" ":" suffix (,(string-append libc 
     (synopsis "Compiler for the Rust progamming language")
     (description "Rust is a systems programming language that provides memory
 safety and thread safety guarantees.")

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