- /* Function called with an option vector as argument, to decode a
- single option (typically starting with -f or -W or +). It should
- return the number of command-line arguments it uses if it handles
- the option, or 0 and not complain if it does not recognise the
- option. This hook cannot be NULL. */
- int (*decode_option) PARAMS ((int, char **));
+/* Return true iff flags are set as if -ffast-math. */
+extern bool fast_math_flags_set_p PARAMS ((void));