Support building as shared library with -fvisibility=hidden on Linux

JieweiWei / googletest

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Support building as shared library with -fvisibility=hidden on Linux #451

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago

On non-Windows systems GTEST_API_ is defined as empty macros which assumes 
default visibility.

However if embedder's build is configured with -fvisibility=hidden GTEST_API_ 
should be defined as __attribute__ ((visibility ("default"))) otherwise 
embedder will not be able to link.

Example of such embedder is Chromium.

Original issue reported on code.google.com by vegorov@google.com on 19 Jan 2014 at 7:28