fails to define RUBY_FUNC_EXPORTED when compiled with clang
When compiling with clang, configure fails the
checking for exported function attribute step and therefore does not generate a define for RUBY_FUNC_EXPORTED. This causes 3rd party gems such as ruby-debug-base to fail due to missing symbols.
Here is the relevant configure.log output:
I am not sure why configure decided that the first program, using
__attribute__ ((visibility("default"))), failed. It successfully compiled and is correct.