···

       
4
       
 
       
  fetchurl,

     

       
5
       
 
       
  mrustc,

     

       
6
       
 
       
  mrustc-minicargo,

     

       
7
       
-
       
  llvm_12,

     

       
8
       
 
       
  libffi,

     

       
9
       
 
       
  cmake,

     

       
10
       
 
       
  perl,

     
···

       
64
       
 
       
  ];

     

       
65
       
 
       
  buildInputs = [

     

       
66
       
 
       
    # for rustc

     

       
67
       
-
       
    llvm_12

     

       
68
       
 
       
    libffi

     

       
69
       
 
       
    zlib

     

       
70
       
 
       
    libxml2

     
···

       
76
       
 
       
    # Use shared mrustc/minicargo/llvm instead of rebuilding them

     

       
77
       
 
       
    "MRUSTC=${mrustc}/bin/mrustc"

     

       
78
       
 
       
    #"MINICARGO=${mrustc-minicargo}/bin/minicargo"  # FIXME: we need to rebuild minicargo locally so --manifest-overrides is applied

     

       
79
       
-
       
    "LLVM_CONFIG=${llvm_12.dev}/bin/llvm-config"

     

       
80
       
 
       
    "RUSTC_TARGET=${stdenv.targetPlatform.rust.rustcTarget}"

     

       
81
       
 
       
  ];

     

       
82
       
 
       


     
···

       
153
       
 
       
      asl20

     

       
154
       
 
       
    ];

     

       
155
       
 
       
    platforms = [ "x86_64-linux" ];

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
0
       
 
       

     

       
156
       
 
       
  };

     

       
157
       
 
       
}

     

···

       
4
       
 
       
  fetchurl,

     

       
5
       
 
       
  mrustc,

     

       
6
       
 
       
  mrustc-minicargo,

     

       
7
       
+
       
  #llvm_12,

     

       
8
       
 
       
  libffi,

     

       
9
       
 
       
  cmake,

     

       
10
       
 
       
  perl,

     
···

       
64
       
 
       
  ];

     

       
65
       
 
       
  buildInputs = [

     

       
66
       
 
       
    # for rustc

     

       
67
       
+
       
    #llvm_12

     

       
68
       
 
       
    libffi

     

       
69
       
 
       
    zlib

     

       
70
       
 
       
    libxml2

     
···

       
76
       
 
       
    # Use shared mrustc/minicargo/llvm instead of rebuilding them

     

       
77
       
 
       
    "MRUSTC=${mrustc}/bin/mrustc"

     

       
78
       
 
       
    #"MINICARGO=${mrustc-minicargo}/bin/minicargo"  # FIXME: we need to rebuild minicargo locally so --manifest-overrides is applied

     

       
79
       
+
       
    #"LLVM_CONFIG=${llvm_12.dev}/bin/llvm-config"

     

       
80
       
 
       
    "RUSTC_TARGET=${stdenv.targetPlatform.rust.rustcTarget}"

     

       
81
       
 
       
  ];

     

       
82
       
 
       


     
···

       
153
       
 
       
      asl20

     

       
154
       
 
       
    ];

     

       
155
       
 
       
    platforms = [ "x86_64-linux" ];

     

       
156
       
+
       
    # rustc 1.54 only supports LLVM 12, which was removed from Nixpkgs.

     

       
157
       
+
       
    # mrustc can bootstrap up to rustc 1.74, which supported LLVM 17,

     

       
158
       
+
       
    # which has also been removed.

     

       
159
       
+
       
    #

     

       
160
       
+
       
    # 1.74 also shipped with the Cranelift backend, so perhaps that

     

       
161
       
+
       
    # could be used instead? Alternatively, it may be possible to

     

       
162
       
+
       
    # backport the upstream patches to support LLVM 18 to 1.74.

     

       
163
       
+
       
    # Assuming LLVM 18 is still in Nixpkgs by the time you read this

     

       
164
       
+
       
    # comment, anyway. But if not, then maybe mrustc has been updated

     

       
165
       
+
       
    # to support newer rustc versions? Hope springs eternal.

     

       
166
       
+
       
    #

     

       
167
       
+
       
    # (Note that you still have to “draw the rest of the owl” to

     

       
168
       
+
       
    # bootstrap the chain of rustc versions between this bootstrap

     

       
169
       
+
       
    # and the version currently used in Nixpkgs, anyway, so this was

     

       
170
       
+
       
    # already not useful for bootstrapping a Rust compiler for use with

     

       
171
       
+
       
    # Nixpkgs without a lot of additional work. See Guix’s Rust

     

       
172
       
+
       
    # bootstrap chain, or the non‐Rust minimal bootstrap in Guix and

     

       
173
       
+
       
    # Nixpkgs, for inspiration.)

     

       
174
       
+
       
    broken = true;

     

       
175
       
 
       
  };

     

       
176
       
 
       
}