Defined in 4 files as a prototype:
- contrib/gcc/config/darwin-crt2.c, line 57 (as a prototype)
- contrib/gcc/config/darwin-crt3.c, line 71 (as a prototype)
- contrib/gcc/unwind-dw2-fde-darwin.c, line 57 (as a prototype)
- contrib/libunwind/src/Unwind_AppleExtras.cpp, line 19 (as a prototype)