From 368c415a01ee0df1e03682879ee9c396047b588f Mon Sep 17 00:00:00 2001
From: Daiderd Jordan <daiderd@gmail.com>
Date: Fri, 28 Jun 2019 20:42:12 +0200
Subject: [PATCH] rustc: don't patch precompiled binaries on darwin

This doesn't work anymore since 1.35.0 because the load commands end up
being too large, but this is a precompiled binary anyway so it's not
really needed or more impure to use the expected system versions.
---
 .../compilers/rust/binaryBuild.nix            | 23 ++++---------------
 1 file changed, 4 insertions(+), 19 deletions(-)

diff --git a/pkgs/development/compilers/rust/binaryBuild.nix b/pkgs/development/compilers/rust/binaryBuild.nix
index 77dba7f9e620..cb2fba96e181 100644
--- a/pkgs/development/compilers/rust/binaryBuild.nix
+++ b/pkgs/development/compilers/rust/binaryBuild.nix
@@ -31,7 +31,8 @@ rec {
       license = [ licenses.mit licenses.asl20 ];
     };
 
-    buildInputs = [ bash ] ++ stdenv.lib.optional stdenv.isDarwin Security;
+    buildInputs = [ bash ]
+      ++ stdenv.lib.optional stdenv.isDarwin Security;
 
     postPatch = ''
       patchShebangs .
@@ -53,17 +54,6 @@ rec {
           "$out/bin/cargo"
       ''}
 
-      ${optionalString (stdenv.isDarwin && bootstrapping) ''
-        install_name_tool -change /usr/lib/libresolv.9.dylib '${darwin.libresolv}/lib/libresolv.9.dylib' "$out/bin/rustc"
-        install_name_tool -change /usr/lib/libresolv.9.dylib '${darwin.libresolv}/lib/libresolv.9.dylib' "$out/bin/rustdoc"
-        install_name_tool -change /usr/lib/libiconv.2.dylib '${darwin.libiconv}/lib/libiconv.2.dylib' "$out/bin/cargo"
-        install_name_tool -change /usr/lib/libresolv.9.dylib '${darwin.libresolv}/lib/libresolv.9.dylib' "$out/bin/cargo"
-        install_name_tool -change /usr/lib/libcurl.4.dylib '${stdenv.lib.getLib curl}/lib/libcurl.4.dylib' "$out/bin/cargo"
-        for f in $out/lib/lib*.dylib; do
-          install_name_tool -change /usr/lib/libresolv.9.dylib '${darwin.libresolv}/lib/libresolv.9.dylib' "$f"
-        done
-      ''}
-
       # Do NOT, I repeat, DO NOT use `wrapProgram` on $out/bin/rustc
       # (or similar) here. It causes strange effects where rustc loads
       # the wrong libraries in a bootstrap-build causing failures that
@@ -85,7 +75,8 @@ rec {
       license = [ licenses.mit licenses.asl20 ];
     };
 
-    buildInputs = [ makeWrapper bash ] ++ stdenv.lib.optional stdenv.isDarwin Security;
+    buildInputs = [ makeWrapper bash ]
+      ++ stdenv.lib.optional stdenv.isDarwin Security;
 
     postPatch = ''
       patchShebangs .
@@ -102,12 +93,6 @@ rec {
           "$out/bin/cargo"
       ''}
 
-      ${optionalString (stdenv.isDarwin && bootstrapping) ''
-        install_name_tool -change /usr/lib/libiconv.2.dylib '${darwin.libiconv}/lib/libiconv.2.dylib' "$out/bin/cargo"
-        install_name_tool -change /usr/lib/libresolv.9.dylib '${darwin.libresolv}/lib/libresolv.9.dylib' "$out/bin/cargo"
-        install_name_tool -change /usr/lib/libcurl.4.dylib '${stdenv.lib.getLib curl}/lib/libcurl.4.dylib' "$out/bin/cargo"
-      ''}
-
       wrapProgram "$out/bin/cargo" \
         --suffix PATH : "${rustc}/bin"
     '';