Update bootstrap to use patched cc crate for wasm32-wali-linux-musl

Author: arjunr2

src/bootstrap/Cargo.toml

@@ -36,7 +36,7 @@ test = false
 # Most of the time updating these dependencies requires modifications
 # to the bootstrap codebase; otherwise, some targets will fail. That's
 # why these dependencies are explicitly pinned.
-cc = "=1.0.73"
+cc = "1.0.73"
 cmake = "=0.1.48"
 
 build_helper = { path = "../tools/build_helper" }

src/bootstrap/src/core/build_steps/llvm.rs

@@ -1374,7 +1374,7 @@ impl Step for Libunwind {
             if file.is_file() && file.extension() == Some(OsStr::new("o")) {
                 // file name starts with "Unwind-EHABI", "Unwind-seh" or "libunwind"
                 let file_name = file.file_name().unwrap().to_str().expect("UTF-8 file name");
-                if cpp_sources.iter().any(|f| file_name.starts_with(&f[..f.len() - 4])) {
+                if cpp_sources.iter().any(|f| file_name.contains(&f[..f.len() - 4])) {
                     cc_cfg.object(&file);
                     count += 1;
                 }