Don't read CLANG anymore in build.rs

xxuejie · Jan 4, 2024 · f9c6d1a · f9c6d1a
1 parent 6cbf068
commit f9c6d1a
Showing 1 changed file with 6 additions and 7 deletions.
diff --git a/contracts/atomics-without-a/build.rs b/contracts/atomics-without-a/build.rs
@@ -1,19 +1,18 @@
 fn main() {
     println!("cargo:rerun-if-changed=../../deps/lib-dummy-atomics/atomics.c");
 
-    let clang = match std::env::var_os("CLANG") {
-        Some(val) => val,
-        None => "clang-16".into(),
-    };
-
     let target_arch = std::env::var("CARGO_CFG_TARGET_ARCH").unwrap();
     if target_arch == "riscv64" {
-        cc::Build::new()
+        let mut build = cc::Build::new();
+        assert!(
+            build.get_compiler().is_like_clang(),
+            "Clang must be used as the compiler!"
+        );
+        build
             .file("../../deps/lib-dummy-atomics/atomics.c")
             .static_flag(true)
             .include("../../deps/ckb-c-stdlib")
             .include("../../deps/ckb-c-stdlib/libc")
-            .compiler(clang)
             .no_default_flags(true)
             .flag("--target=riscv64")
             .flag("-march=rv64imc_zba_zbb_zbc_zbs")