Updating more libraries to hind their symbols by default seems reasonable to me. Any cases where we're using unintentionally referenced symbols should be addressed, as you said.
[quote="bhatsach, post:1, topic:7981"]
However other packages just have the visibility headers defined but not enabled in compile flags [2].
[/quote]
The symbol visibility headers are used primarily for Windows, where symbols must be declared publicly, and implicitly referencing symbols will not work.
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