fangism/hackt

readline: rl_completion_display_matches_hook prototype difference in pointer assignment

Closed this issue · 2 comments

benvarkey commented

Compiling the clang34ification branch gives the following error:

../../src/sim/command_registry.tcc:876:39: error: assigning to 'VFunction *'
    (aka 'void (*)()') from incompatible type 'void (char **, int, int)':
    different number of parameters (0 vs 3)
                      rl_completion_display_matches_hook =
fangism commented

This is most likely due to some API change in GNU readline, and not specific to any compiler or OS. What version of readline are you building against?

fangism commented

I believe we determined that this was due to accidentally finding Apple's editline library, which attempts to mimic the GNU readline API, but has some differences. Solution: install GNU readline separately and configure with

--with-readline=/path/to/readline-root

such as /opt/local.