bintools: Add response file support to ld-wrapper

The motivation behind this is to alleviate the problem
described in NixOS#41340.
I'm not sure if this completely fixes the problem, but it
eliminates one more area where we can exceed command line
length limits.

This is essentially the same change as in NixOS#112449,
except for `ld-wrapper.sh` instead of `cc-wrapper.sh`.

However, that change alone was not enough; on macOS the
`ld` provided by `darwin.cctools` fails if you use process
substitution to generate the response file, so I put up two
PRs to fix that:

tpoechtrager/cctools-port#131
tpoechtrager/cctools-port#132

… and I included a patch referencing that fix so that the
new `ld-wrapper` still works on macOS.

pkgs/build-support/bintools-wrapper/default.nix

@@ -140,6 +140,7 @@ stdenv.mkDerivation {
         local dst="$1"
         local wrapper="$2"
         export prog="$3"
+        export use_response_file_by_default=${if (bintools.isCCTools or false) then "1" else "0"}
         substituteAll "$wrapper" "$out/bin/$dst"
         chmod +x "$out/bin/$dst"
       }

pkgs/build-support/bintools-wrapper/ld-wrapper.sh

@@ -250,10 +250,18 @@ fi
 
 PATH="$path_backup"
 # Old bash workaround, see above.
-@prog@ \
-    ${extraBefore+"${extraBefore[@]}"} \
-    ${params+"${params[@]}"} \
-    ${extraAfter+"${extraAfter[@]}"}
+
+if (( "${NIX_LD_USE_RESPONSE_FILE:-@use_response_file_by_default@}" >= 1 )); then
+    @prog@ @<(printf "%q\n" \
+        ${extraBefore+"${extraBefore[@]}"} \
+        ${params+"${params[@]}"} \
+        ${extraAfter+"${extraAfter[@]}"})
+else
+    @prog@ \
+        ${extraBefore+"${extraBefore[@]}"} \
+        ${params+"${params[@]}"} \
+        ${extraAfter+"${extraAfter[@]}"}
+fi
 
 if [ -e "@out@/nix-support/post-link-hook" ]; then
     source @out@/nix-support/post-link-hook

pkgs/os-specific/darwin/binutils/default.nix

@@ -89,6 +89,7 @@ stdenv.mkDerivation {
 
   passthru = {
     inherit targetPrefix;
+    isCCTools = true;
   };
 
   meta = {

pkgs/os-specific/darwin/cctools/port.nix

@@ -3,6 +3,7 @@
 , libuuid
 , libobjc ? null, maloader ? null
 , enableTapiSupport ? true, libtapi
+, fetchpatch
 }:
 
 let
@@ -42,6 +43,14 @@ stdenv.mkDerivation {
   patches = [
     ./ld-ignore-rpath-link.patch
     ./ld-rpath-nonfinal.patch
+    (fetchpatch {
+      url = "https://github.com/tpoechtrager/cctools-port/commit/4a734070cd2838e49658464003de5b92271d8b9e.patch";
+      hash = "sha256-72KaJyu7CHXxJJ1GNq/fz+kW1RslO3UaKI91LhBtiXA=";
+    })
+    (fetchpatch {
+      url = "https://github.com/MercuryTechnologies/cctools-port/commit/e1f2802ea4bfde6fe00d2d815303392b11a262eb.patch";
+      hash = "sha256-SWVUzFaJHH2fu9y8RcU3Nx/QKx60hPE5zFx0odYDeQs=";
+    })
   ]
     ++ lib.optional stdenv.isDarwin ./darwin-no-memstream.patch;