instead, as such this warning only works when \-std=qcc.
.It Fl W Ns Cm directive-inmacro
Warn about the use of preprocessor directives inside macros.
+.It Fl W Ns Cm builtins
+When using a function that is not explicitly defined, the compiler
+will search its intrinsics table for something that matches that
+function name by appending "__builtin_" to it. This behaviour may
+be unexpected, so enabling this will produce a diagnostic when
+such a function is resolved to a builtin.
.El
.Sh COMPILE FLAGS
.Bl -tag -width Ds
the first to of the global return value. This behavior is odd and
relying on it should be discouraged, and thus is not supported by
gmqcc.
+.It Fl f Ns Cm ftepp-mathdefs
+Enable math constant definitions. This only works in combination
+with \'\-fftepp' and is currently not included by '\-std=fteqcc'.
+The following macros will be added:
+.Bd -literal -offset indent
+M_E
+M_LOG2E
+M_LOG10E
+M_LN2
+M_LN10
+M_PI
+M_PI_2
+M_PI_4
+M_1_PI
+M_2_PI
+M_2_SQRTPI
+M_SQRT2
+M_SQRT1_2
+M_TAU
+.Ed
.It Fl f Ns Cm relaxed-switch
Allow switch cases to use non constant variables.
.It Fl f Ns Cm short-logic