NULL 83 maint/gnulib/lib/stddef.in.h # undef NULL NULL 91 maint/gnulib/lib/stddef.in.h # define NULL __null NULL 93 maint/gnulib/lib/stddef.in.h # define NULL 0L NULL 96 maint/gnulib/lib/stddef.in.h # define NULL ((void *) 0)