tinygo: fix reproducible vendor

pkgs/development/compilers/tinygo/default.nix

@@ -18,12 +18,23 @@
 , avrdude
 , gdb
 , openocd
+, runCommand
 , tinygoTests ? [ "smoketest" ]
 }:
 
 let
   llvmMajor = lib.versions.major llvm.version;
   inherit (llvmPackages) llvm clang compiler-rt lld;
+
+  # only doing this because only on darwin placing clang.cc in nativeBuildInputs
+  # doesn't build
+  bootstrapTools = runCommand "tinygo-bootstap-tools" { } ''
+    mkdir -p $out
+    ln -s ${lib.getBin clang.cc}/bin/clang $out/clang-${llvmMajor}
+    ln -s ${lib.getBin lld}/bin/ld.lld $out/ld.lld-${llvmMajor}
+    ln -s ${lib.getBin lld}/bin/wasm-ld $out/wasm-ld-${llvmMajor}
+    ln -s ${gdb}/bin/gdb $out/gdb-multiarch
+  '';
 in
 
 buildGoModule rec {
@@ -100,20 +111,13 @@ buildGoModule rec {
     # Disable windows and darwin cross-compile tests
     sed -i "/GOOS=windows/d" Makefile
     sed -i "/GOOS=darwin/d" Makefile
-
-    # tinygo needs versioned binaries
-    mkdir -p $out/libexec/tinygo
-    ln -s ${lib.getBin clang.cc}/bin/clang $out/libexec/tinygo/clang-${llvmMajor}
-    ln -s ${lib.getBin lld}/bin/ld.lld $out/libexec/tinygo/ld.lld-${llvmMajor}
-    ln -s ${lib.getBin lld}/bin/wasm-ld $out/libexec/tinygo/wasm-ld-${llvmMajor}
-    ln -s ${gdb}/bin/gdb $out/libexec/tinygo/gdb-multiarch
   '' + lib.optionalString (stdenv.buildPlatform != stdenv.hostPlatform) ''
     substituteInPlace Makefile \
       --replace "./build/tinygo" "${buildPackages.tinygo}/bin/tinygo"
   '';
 
   preBuild = ''
-    export PATH=$out/libexec/tinygo:$PATH
+    export PATH=${bootstrapTools}:$PATH
     export HOME=$TMPDIR
   '';
 
@@ -149,7 +153,7 @@ buildGoModule rec {
     make build/release
 
     wrapProgram $out/bin/tinygo \
-      --prefix PATH : ${lib.makeBinPath [ go avrdude openocd avrgcc binaryen ]}:$out/libexec/tinygo
+      --prefix PATH : ${lib.makeBinPath [ go avrdude openocd avrgcc binaryen ]}:${bootstrapTools}
 
     runHook postInstall
   '';