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-rw-r--r--pkgs/build-support/cc-wrapper/default.nix2
1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/build-support/cc-wrapper/default.nix b/pkgs/build-support/cc-wrapper/default.nix
index 489fb02dcb5d..a12c835dd9bf 100644
--- a/pkgs/build-support/cc-wrapper/default.nix
+++ b/pkgs/build-support/cc-wrapper/default.nix
@@ -286,7 +286,7 @@ stdenv.mkDerivation {
         *) echo "Multiple dynamic linkers found for platform '${targetPlatform.config}'." >&2;;
       esac
 
-      if [ -n "$dynamicLinker" ]; then
+      if [ -n "''${dynamicLinker:-}" ]; then
         echo $dynamicLinker > $out/nix-support/dynamic-linker
 
     '' + (if targetPlatform.isDarwin then ''