enable feature_require_crate_cpp for musl

Ecordonnier · Ecordonnier · commit bd53e904d727 · 2025-04-12T19:57:29.000+02:00
I am not sure what the original issue was, but it seems to work:

```
cargo build --target=x86_64-unknown-linux-musl --features feat_os_unix_musl
...
coreutils$ ./target/x86_64-unknown-linux-musl/debug/coreutils stdbuf -o L echo "foobar"
foobar
```
diff --git a/Cargo.toml b/Cargo.toml
@@ -174,6 +174,7 @@ feat_os_unix_gnueabihf = [
 feat_os_unix_musl = [
   "feat_Tier1",
   #
+  "feat_require_crate_cpp",
   "feat_require_unix",
   "feat_require_unix_hostid",
 ]

Original file line number	Diff line number	Diff line change
`@@ -174,6 +174,7 @@ feat_os_unix_gnueabihf = [`
`174`	`174`	`feat_os_unix_musl = [`
`175`	`175`	`"feat_Tier1",`
`176`	`176`	`#`
	`177`	`+ "feat_require_crate_cpp",`
`177`	`178`	`"feat_require_unix",`
`178`	`179`	`"feat_require_unix_hostid",`
`179`	`180`	`]`