Try LLVM 18 on Yggdrasil

Author: mofeing

deps/ReactantExtra/BUILD

@@ -59,6 +59,7 @@ cc_toolchain_config(
         "/opt/x86_64-linux-musl/x86_64-linux-musl/sys-root/usr/include",
         "/opt/x86_64-linux-musl/lib/clang/16/include",
         "/opt/x86_64-linux-musl/lib/clang/17/include",
+        "/opt/x86_64-linux-musl/lib/clang/18/include",
         #         "/opt/x86_64-linux-musl/x86_64-linux-musl/include",
         #         "/opt/x86_64-linux-musl/lib/gcc/x86_64-linux-musl/10.2.0/include",
         #         "/opt/x86_64-linux-musl/x86_64-linux-musl/sys-root/usr/include",
@@ -102,7 +103,7 @@ cc_toolchain_config(
         #"ld": "/opt/x86_64-linux-musl/bin/ld.lld",
         #"cpp": "/opt/x86_64-linux-musl/bin/clang++",
         "ar": "/opt/bin/x86_64-linux-musl-cxx11/x86_64-linux-musl-ar",
-        "llvm-cov": "/usr/lib/llvm-17/bin/llvm-cov",
+        "llvm-cov": "/usr/lib/llvm-18/bin/llvm-cov",
         "nm": "/opt/bin/x86_64-linux-musl-cxx11/x86_64-linux-musl-nm",
         "objdump": "/opt/bin/x86_64-linux-musl-cxx11/x86_64-linux-musl-objdump",
         "strip": "/opt/bin/x86_64-linux-musl-cxx11/x86_64-linux-musl-strip",