update enzyme submodule

Author: ZuseZ4

src/bootstrap/src/core/build_steps/compile.rs

@@ -1197,7 +1197,7 @@ pub fn rustc_cargo(
         if let Some(llvm_config) = builder.llvm_config(builder.config.build) {
             //let llvm_version_major = llvm::get_llvm_version_major(builder, &llvm_config);
             //cargo.rustflag("-l").rustflag(&format!("EnzymeStatic-{llvm_version_major}"));
-            cargo.rustflag(abs_path);
+            cargo.rustflag(abs_path.to_str().unwrap());
         }
     }
 

src/bootstrap/src/core/builder/cargo.rs

@@ -988,9 +988,15 @@ impl Builder<'_> {
                 let llvm_libdir =
                     command(llvm_config).arg("--libdir").run_capture_stdout(self).stdout();
                 if target.is_msvc() {
+                    // FIXME(autodiff): Enzyme does currently not support MSVC.
                     rustflags.arg(&format!("-Clink-arg=-LIBPATH:{llvm_libdir}"));
                 } else {
                     rustflags.arg(&format!("-Clink-arg=-L{llvm_libdir}"));
+                    if self.config.llvm_enzyme {
+                        let arch = self.build.build;
+                        let enzyme_dir = self.build.out.join(arch).join("enzyme").join("lib");
+                        rustflags.arg(&format!("-Clink-arg=-L{enzyme_dir}"));
+                    }
                 }
             }
         }