* nsfInt.h (STRING_NEW): Silence GCC 8.1 warnings on truncation risk using strncpy; made me wonder whether STRING_NEW would not be more robust against mis-computations of the destination-buffer length by using snprintf (mainly because snprintf does not nul-pad the destination buffer and always nul-terminates the destination buffer)?
* nsf.c (ParamOptionParse), nsfInt.h: Provide for own MAX and MIN macros, the ones reused implicitly from Tcl's tommath have vanished in 8.7 branches; and are not provided otherwise, at least in MinGW settings. Fixes 8.7 builds for MinGW under Win.