trivialfis commented on issue #4953:
URL: https://github.com/apache/incubator-tvm/issues/4953#issuecomment-618640842
@hcho3 One last request, otherwise I'm running out of ideas.
Patch both xgboot and rabit's C API macro:
For xgboost:
``` patch
diff --git a/include/xgboost/c_api.h b/include/xgboost/c_api.h
index f9c0a0ff..baaaeb43 100644
--- a/include/xgboost/c_api.h
+++ b/include/xgboost/c_api.h
@@ -20,7 +20,7 @@
#if defined(_MSC_VER) || defined(_WIN32)
#define XGB_DLL XGB_EXTERN_C __declspec(dllexport)
#else
-#define XGB_DLL XGB_EXTERN_C
+#define XGB_DLL XGB_EXTERN_C __attribute__ ((visibility ("default")))
#endif // defined(_MSC_VER) || defined(_WIN32)
// manually define unsigned long
```
For rabit:
``` patch
diff --git a/include/rabit/c_api.h b/include/rabit/c_api.h
index 0a96ef7..47c5735 100644
--- a/include/rabit/c_api.h
+++ b/include/rabit/c_api.h
@@ -18,7 +18,7 @@
#if defined(_MSC_VER) || defined(_WIN32)
#define RABIT_DLL RABIT_EXTERN_C __declspec(dllexport)
#else
-#define RABIT_DLL RABIT_EXTERN_C
+#define RABIT_DLL RABIT_EXTERN_C __attribute__ ((visibility ("default")))
#endif // defined(_MSC_VER) || defined(_WIN32)
/*! \brief rabit unsigned long type */
```
Build XGBoost with following flags appended:
```
-DCMAKE_CXX_FLAGS='-fvisibility=hidden' -DCMAKE_C_FLAGS='-fvisibility=hidden'
```
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