Some environments don't have CARGO_CFG_TARGET_FEATURE?

justsmth · justsmth · commit aa95634a89ee · 2025-10-27T10:34:54.000-04:00
diff --git a/aws-lc-fips-sys/builder/main.rs b/aws-lc-fips-sys/builder/main.rs
@@ -475,8 +475,12 @@ fn prepare_cargo_cfg() {
 }
 
 fn is_crt_static() -> bool {
-    let features = cargo_env("CARGO_CFG_TARGET_FEATURE");
-    features.contains("crt-static")
+    // Some cross-compilation environment apparently don't have this defined.
+    if let Some(features) = option_env("CARGO_CFG_TARGET_FEATURE") {
+        features.contains("crt-static")
+    } else {
+        false
+    }
 }
 
 bindgen_available!(

Original file line number	Diff line number	Diff line change
`@@ -475,8 +475,12 @@ fn prepare_cargo_cfg() {`
`475`	`475`	`}`
`476`	`476`
`477`	`477`	`fn is_crt_static() -> bool {`
`478`		`- let features = cargo_env("CARGO_CFG_TARGET_FEATURE");`
`479`		`- features.contains("crt-static")`
	`478`	`+ // Some cross-compilation environment apparently don't have this defined.`
	`479`	`+ if let Some(features) = option_env("CARGO_CFG_TARGET_FEATURE") {`
	`480`	`+ features.contains("crt-static")`
	`481`	`+ } else {`
	`482`	`+ false`
	`483`	`+ }`
`480`	`484`	`}`
`481`	`485`
`482`	`486`	`bindgen_available!(`