1 files changed, 30 insertions, 0 deletions
diff --git a/tests/legacy/examples/cgo/cc_dependency/cxx_version.cc b/tests/legacy/examples/cgo/cc_dependency/cxx_version.cc
new file mode 100644
index 00000000..43fb427e
--- /dev/null
+++ b/tests/legacy/examples/cgo/cc_dependency/cxx_version.cc
@@ -0,0 +1,30 @@
+#include <dlfcn.h>
+#include <iostream>
+
+#include "tests/legacy/examples/cgo/cc_dependency/version.h"
+
+// TODO(yugui) Support Darwin too once Bazel allows it.
+//
+// Bazel passes two or more -Wl,-rpath to $(CC) when it links a binary with
+// shared libraries prebuilt outside of Bazel (i.e. when "srcs" attribute of
+// the dependency cc_library contains ".so" files).
+// Unfortunately tools/cpp/osx_cc_wrapper.sh, which is $(CC) on Darwin, expects
+// only one -Wl,-rpath. So the binary fails to resolve the shared libraries
+// at runtime.
+#ifndef __APPLE_CC__
+# include "tests/legacy/examples/cgo/cc_dependency/c_version.h"
+#endif
+
+extern "C" void PrintCXXVersion() {
+#ifndef __APPLE_CC__
+    PrintCVersion();
+#endif
+    void* ptr = dlsym(RTLD_DEFAULT, "PrintCXXVersion");
+    if (ptr) {
+        std::cout
+            << "function ptr: " << std::hex << ptr << std::dec << std::endl;
+    } else {
+        std::cout << dlerror() << std::endl;
+    }
+    std::cout << "C++ version: " << __cplusplus << std::endl;
+}