make autogenerated functions to be 'static inline' instead of 'inline'
This fixes link issue and compile warning, for more details about this
issue look at
https://bitbucket.org/mjsousa/matiec/issues/53/c-compiler-warning-if-iec-function-is-used
FUNCTION_BLOCK HYSTERESIS (* Boolean hysteresis on difference *) (* of REAL inputs, XIN1 - XIN2 *) VAR_INPUT XIN1, XIN2, EPS : REAL; END_VAR VAR_OUTPUT Q : BOOL := 0; END_VAR IF Q THEN IF XIN1 < (XIN2 - EPS) THEN Q := 0; END_IF ; ELSIF XIN1 > (XIN2 + EPS) THEN Q := 1 ; END_IF ;END_FUNCTION_BLOCK