autoconf macro for gcc symbol visibility

[jtc@xxxxxxxxxxxxxxxxxx (J.T. Conklin)]

Does anyone have a macro for testing gcc's symbol visibility options
(-fvisibility=hidden, etc.)?  The ACE/TAO autoconf scripts currently
checks for gcc/g++ >= 4.0, but that loses on non-ELF targets.

    --jtc

-- 
J.T. Conklin


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