[ARROW-627] [C++] Compatibility macros for exported extern template class declarations

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.3.0
• Component/s: C++
• External issue URL: https://github.com/apache/arrow/issues/15363
• Assignee: Wes McKinney
• Reporter: Wes McKinney
• Created: 14/Mar/17 14:47
• Updated: 11/Jan/23 07:09
• Resolved: 29/Mar/17 23:53

Description

See all the compiler warnings in our Windows builds

https://ci.appveyor.com/project/ApacheSoftwareFoundation/arrow/build/1.0.652

Also, consider the hacks we have around gcc/clang disagreement about visibility about the use of extern template:

https://github.com/apache/arrow/blob/master/cpp/src/arrow/array.h#L508

I suspect we may want some macros to help with compiler differences about such issues, possibly to go in https://github.com/apache/arrow/blob/master/cpp/src/arrow/util/visibility.h