minor fixes

Author: Jin Huang

bazel/test_external/.gitignore

@@ -1,2 +1 @@
 bazel-*
-dist/

bazel/test_external/BUILD

@@ -3,13 +3,10 @@ load("@emsdk//emscripten_toolchain:wasm_rules.bzl", "wasm_cc_binary")
 cc_binary(
     name = "hello-world",
     srcs = ["hello-world.cc"],
-    linkopts = [
-        "--bind",
-    ],
+    linkopts = ["--bind"],
 )
 
 wasm_cc_binary(
     name = "hello-world-wasm",
     cc_target = ":hello-world",
 )
-

bazel/test_external/README.md

@@ -1,24 +1,22 @@
+#include <iostream>
+
 #ifdef __EMSCRIPTEN__
 #include <emscripten.h>
 #include <emscripten/bind.h>
 using namespace emscripten;
 #endif
 
-#include <iostream>
-
 void sayHello() {
   std::cout << "hello" << std::endl;
 }
 
 #ifdef __EMSCRIPTEN__
-EMSCRIPTEN_BINDINGS(aa) {
+EMSCRIPTEN_BINDINGS(hello) {
   function("sayHello", &sayHello);
 }
-#else
+#endif
+
 int main(int argc, char** argv) {
-  std::cout << "start main function" << std::endl;
-  sayHello();
-  std::cout << "end main function" << std::endl;
+  std::cout << "hello world!" << std::endl;
   return 0;
 }
-#endif