fix build for recent... macos? readline? ruby?

[jjb]

got these errors on macos 14 with ruby 3.2 and 3.3 and readline 8.2, not sure which one is the culprit, my C skills are almost nonexistent but i powered through!

src/line_editor.c:1622:5: error: incompatible function pointer types passing 'VALUE (VALUE, VALUE)' (aka 'unsigned long (unsigned long, unsigned long)') to parameter of type 'VALUE (*)(VALUE)' (aka 'unsigned long (*)(unsigned long)') [-Wincompatible-function-pointer-types]
    rb_define_singleton_method(mLineEditor, "completer_word_break_characters",
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

src/line_editor.c:1626:5: error: incompatible function pointer types passing 'VALUE (VALUE, VALUE)' (aka 'unsigned long (unsigned long, unsigned long)') to parameter of type 'VALUE (*)(VALUE)' (aka 'unsigned long (*)(unsigned long)') [-Wincompatible-function-pointer-types]
    rb_define_singleton_method(mLineEditor, "completer_quote_characters",
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

[jjb]

i think something like this works

git checkout jjb-1
bundle --redownload
RUBY=$(which ruby) ./configure
make
sudo make install