Fix the visibility compilation error for GCC <= 7 #312
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### Motivation apache#296 introduced a regression for GCC <= 7. > lib/RetryableOperation.h:109:66: error: 'pulsar::RetryableOperation<T>::runImpl(pulsar::TimeDuration)::<lambda(pulsar::Result, const T&)> [with T = pulsar::LookupService::LookupResult]::<lambda(const boost::system::error_code&)>' declared with greater visibility than the type of its field 'pulsar::RetryableOperation<T>::runImpl(pulsar::TimeDuration)::<lambda(pulsar::Result, const T&)> [with T = pulsar::LookupService::LookupResult]::<lambda(const boost::system::error_code&)>::<this capture>' [-Werror=attributes] It seems to be a bug for GCC <= 7 abort the visibility of the lambda expression might not be affected by the `-fvisibility=hidden` option. ### Modifications Add `__attribute__((visibility("hidden")))` to `RetryableOperation::runImpl` explicitly.
merlimat
approved these changes
Sep 8, 2023
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Motivation
Fixes #311
#296 introduced a regression for GCC <= 7.
It seems to be a bug for GCC <= 7 abort the visibility of the lambda expression might not be affected by the
-fvisibility=hiddenoption.Modifications
Add
__attribute__((visibility("hidden")))toRetryableOperation::runImplexplicitly.Documentation
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