Configure.pl --without-core-nci-thunks breaks build.

[coke]

Using this Configure option, I get a build failure:

./parrot runtime/parrot/library/PGE/Perl6Grammar.pir --output=compilers/pge/PGE/builtins_gen.pir compilers/pge/PGE/builtins.pg
No NCI thunk available for signature 'PJt'
current instr.: 'parrot;PGE;Exp;compile' pc 3270 (compilers/pge/PGE/OPTable.pir:92)
called from Sub 'parrot;PGE;Perl6Grammar;Compiler;__onload' pc 47 (runtime/parrot/library/PGE/Perl6Grammar.pir:83)

Found thanks to  https://github.com/leto/Util/blob/master/bin/new_parrot_plain

[plobsing]

See the description of --without-core-nci-thunks from 'Configure.pl --help'

   --without-core-nci-thunks
                        Build parrot without core-required
                        statically compiled NCI call frames
                        (useful for testing dynamic frame builders)

Note the key word here is core-required. Parrot core cannot operate without some means of obtaining these thunks.

The only way the build of these thunks can be avoided is if there is a dynamic frame builder in use (eg: libffi). This option was provided for such cases and assumes the reader is familiar with the jargon describing the option before using it and therefore capable of making an informed decision regarding the suitability of this option to their situation.