hook              218 maint/gnulib/lib/argp-parse.c   void *hook;
hook              230 maint/gnulib/lib/argp-parse.c       state->hook = group->hook;
hook              235 maint/gnulib/lib/argp-parse.c       group->hook = state->hook;
hook              360 maint/gnulib/lib/argp-parse.c       group->hook = 0;
hook              342 maint/gnulib/lib/argp.h   void *hook;