message: Use trailing slashes for include and link dirs
diff: @@ -339,9 +339,9 @@ fn test_ok() {
  }
  } else if !config.wasmer_dir.is_empty() {
  command.arg("-I");
  - command.arg(&format!("{}/wasm-c-api", config.root_dir));
  + command.arg(&format!("{}/wasm-c-api/", config.root_dir));
  command.arg("-I");
  - command.arg(&format!("{}/include", config.wasmer_dir));
  + command.arg(&format!("{}/include/", config.wasmer_dir));
  }
  if !config.ldflags.is_empty() {
  for f in config.ldflags.split_whitespace() {
  @@ -355,7 +355,7 @@ fn test_ok() {
  }
  } else if !config.wasmer_dir.is_empty() {
  command.arg("-L");
  - command.arg(&format!("{}/lib", config.wasmer_dir));
  + command.arg(&format!("{}/lib/", config.wasmer_dir));
  command.arg(&format!("-lwasmer"));
  }
  command.arg("-o");
  