https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100483
--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> --- Symbol resolution in an executable or a shared library at run-time is determined by 1. Linker options + all input files at link-time. 2. ld.so + all shared libraries at run-time. Add a compiler option at compile-time has very limited impact on symbol resolution at run-time. My GNU_PROPERTY_SINGLE_GLOBAL_DEFINITION proposal provides a way to specify symbol resolution at compile-time, link-time and link-time.
