Merge branch 'MC/hide_eigen_sol' into devel

src/libgmshdg/CMakeLists.txt

@@ -34,3 +34,9 @@ else()
     add_library(gmshdg SHARED ${LIBGMSHDG_SOURCES})
     target_link_libraries(gmshdg ${LINK_LIBS})
 endif()
+
+if (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
+    set_property(TARGET gmshdg APPEND_STRING PROPERTY LINK_FLAGS " -Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/libgmshdg.lkr")
+    set_target_properties(gmshdg PROPERTIES LINK_DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/libgmshdg.lkr")
+endif()
+

src/libgmshdg/libgmshdg.lkr

+{
+    global: *;
+    local:
+        extern "C++"
+        {
+            Eigen::*;
+            *Eigen::internal::*;
+            sol::*;
+        };
+};
+