updating flag with flag_if_supported

paradoxicalguy · Urgau · web-flow · commit fc6b9c862636 · 2026-05-05T22:13:25.000+05:30
Co-authored-by: Urgau &lt;3616612+Urgau@users.noreply.github.com&gt;
diff --git a/compiler/rustc_llvm/build.rs b/compiler/rustc_llvm/build.rs
@@ -278,7 +278,7 @@ fn main() {
         && let Some(maps_str) = maps.to_str()
     {
         for map in maps_str.split('\t') {
-            cfg.flag(&format!("-fdebug-prefix-map={map}"));
+            cfg.flag_if_supported(&format!("-ffile-prefix-map={map}"));
         }
     }
 

Original file line number	Diff line number	Diff line change
`@@ -278,7 +278,7 @@ fn main() {`
`278`	`278`	`&& let Some(maps_str) = maps.to_str()`
`279`	`279`	`{`
`280`	`280`	`for map in maps_str.split('\t') {`
`281`		`- cfg.flag(&format!("-fdebug-prefix-map={map}"));`
	`281`	`+ cfg.flag_if_supported(&format!("-ffile-prefix-map={map}"));`
`282`	`282`	`}`
`283`	`283`	`}`
`284`	`284`