bintools: Add response file support to `ld-wrapper` (#213831)

The motivation behind this is to alleviate the problem
described in https://github.com/NixOS/nixpkgs/issues/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 #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 a
PR to fix that:

https://github.com/tpoechtrager/cctools-port/pull/131

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

1 files changed, 12 insertions, 4 deletions

diff --git a/pkgs/build-support/bintools-wrapper/ld-wrapper.sh b/pkgs/build-support/bintools-wrapper/ld-wrapper.sh
index 86a7416022010..cb1160f9bbf71 100644
--- a/pkgs/build-support/bintools-wrapper/ld-wrapper.sh
+++ b/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