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.../lib/5.10.0/i686-linux/CORE $ nm libperl.a | grep Dyna DynaLoader.o: ... 0000000000000090 T XS_DynaLoader_dl_load_file 00000000000004e0 T XS_DynaLoader_dl_undef_symbols 00000000000001f0 T XS_DynaLoader_dl_unload_file