Update to only export LIBRARY_EXPORT symbols from the shared library (n…

…i#362) Signed-off-by: Yanjiang Qian <yanjiang.qian@ni.com>
yash-ni · Jun 12, 2024 · add68a6 · add68a6
1 parent d45c511
commit add68a6
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diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -8,6 +8,8 @@ project(labview-grpc C CXX)
 
 if(NOT MSVC)
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
+  # Set default visibility to hidden, only export LIBRARY_EXPORT symbols from the shared library
+  add_compile_options(-fvisibility=hidden)
 else()
   add_definitions(-D_WIN32_WINNT=0x600)
   set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")

diff --git a/src/lv_interop.h b/src/lv_interop.h
@@ -20,7 +20,7 @@
 #ifdef _WIN32
     #define LIBRARY_EXPORT extern "C" __declspec(dllexport)
 #else
-    #define LIBRARY_EXPORT extern "C"
+    #define LIBRARY_EXPORT extern "C" __attribute__((visibility("default")))
 #endif
 
 namespace grpc_labview