On Wed, Oct 2, 2013 at 4:20 PM, Niall Douglas
On 2 Oct 2013 at 14:48, Emil Dotchevski wrote:
Then I have a main.cpp which creates an instance of ClassA and ClassB and links to the library which contains ClassA.o and ClassB.o. When I compile the main.cpp I get the linker error duplicate symbol for the errinfo_api_function object in ClassA.o and ClassB.o. If I remove the visibility=hidden flag, it links without problems. I am not an expert on the compiler flags, but I saw that many libraries use the visibility=hidden flag so I think it would be good, if my lib could also use it.
Honestly I have no idea why this would happen. Anyone?
Throwable types must *always* be marked with attribute visibility default. I assume this has been done correctly, but if it hasn't that might help explain the problem. See my doc on the issue at http://gcc.gnu.org/wiki/Visibility.
These are not throwable types. For example, errinfo_api_function is not a throwable type. -- Emil Dotchevski Reverge Studios, Inc. http://www.revergestudios.com/reblog/index.php?n=ReCode