#if _FP_W_TYPE_SIZE < 32
#error "Here's a nickel kid. Go buy yourself a real computer."
#endif
– /arch/sparc64/double.h
#if _FP_W_TYPE_SIZE < 32
#error "Here's a nickel kid. Go buy yourself a real computer."
#endif
– /arch/sparc64/double.h
It’s still there in modern Linux at include/math-emu/double.h