fix: remap native release build paths

agents.md

@@ -161,5 +161,7 @@ the trigger to ungate clipboard/geolocation/notification/webrtc prefs.
   `runtime.rs`/`runtime_paint.rs` or `state/local_visibility.rs`.
 - GPUI color encoding is explicit: pass 24-bit `RRGGBB` tokens to `rgb()` and
   32-bit `RRGGBBAA` tokens to `rgba()`.
+- Release builds remap workspace, Cargo, Rustup, sysroot, and target paths in
+  both Rust and native C/C++ objects; `verify_release_artifacts.sh` enforces it.
 - Tracing targets: `ely::sync`, `ely::local_state` — add spans/fields on
   every new failure path so field issues are diagnosable.

scripts/release_build_env.sh

@@ -11,6 +11,13 @@ ely_append_encoded_rustflag() {
     export CARGO_ENCODED_RUSTFLAGS
 }
 
+ely_append_c_family_flag() {
+    local flag="$1"
+    CFLAGS="${CFLAGS:+${CFLAGS} }${flag}"
+    CXXFLAGS="${CXXFLAGS:+${CXXFLAGS} }${flag}"
+    export CFLAGS CXXFLAGS
+}
+
 ely_path_variants() {
     local path="$1"
     local canonical_path=""
@@ -34,6 +41,14 @@ ely_add_release_path_remap() {
     while IFS= read -r variant; do
         [[ -n "${variant}" ]] || continue
         ely_append_encoded_rustflag "--remap-path-prefix=${variant}=${replacement}"
+        case "$(uname -s)" in
+            MINGW*|MSYS*|CYGWIN*)
+                ely_append_c_family_flag "/pathmap:${variant}=${replacement}"
+                ;;
+            *)
+                ely_append_c_family_flag "-ffile-prefix-map=${variant}=${replacement}"
+                ;;
+        esac
     done < <(ely_path_variants "${path}")
 }