WillAyd commented on code in PR #46715:
URL: https://github.com/apache/arrow/pull/46715#discussion_r2167558361
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cpp/src/arrow/meson.build:
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@@ -422,6 +422,8 @@ arrow_lib = library(
include_directories: arrow_includes,
dependencies: arrow_deps,
install: true,
+ gnu_symbol_visibility: 'hidden',
+ cpp_shared_args: ['-DARROW_EXPORTING'],
Review Comment:
FWIW its not really necessary to define a macro like this on non-Windows
platforms. We could alternatively just simplify the ARROW_EXPORT macro to
always use default symbol visibility.
I figure that change is better left to a follow up though, so for now going
with CMake feature parity
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