Before this change, trying to build LAME on Darwin would throw an error:
Undefined symbols for architecture x86_64:
"_lame_init_old", referenced from:
-exported_symbol[s_list] command line option
ld: symbol(s) not found for architecture x86_64
clang-4.0: error: linker command failed with exit code 1 (use -v to see invocation)