.RB "passed to the program's " main() " function. The "
.IR options " parameter points to the table of command-line options, "
which was described in the previous section. The final parameter,
-.IR flags ",is not currently used but should always be specified as
-0 for compatibility with future versions of the popt library.
+.IR flags ,
+can take one of three values:
+.br
+.TS
+lfB lfB
+lfB lfR.
+Value Description
+POPT_CONTEXT_NO_EXEC Ignore exec expansions
+POPT_CONTEXT_KEEP_FIRST Do not ignore argv[0]
+POPT_CONTEXT_POSIXMEHARDER Options cannot follow arguments
+.TE
.sp
.RB "A " poptContext " keeps track of which options have already been "
parsed and which remain, among other things. If a program wishes to