Symbol lookup error: rb_str_strlen

[Th3-M4jor]

Had this error come up in CI while was writing my own Erlang ETF parser for Ruby.

I tested locally against truffleruby 24.2.0-dev-0e05bfe4, like ruby 3.2.4, Oracle GraalVM JVM [x86_64-linux] and had the same error.

It appears to be defined here

truffleruby/lib/cext/include/ruby/internal/intern/string.h

Line 1189 in b359f4c

long rb_str_strlen(VALUE str);

but does not have a matching implementation in TruffleRuby's string.c

[eregon]

Thank you for the report.

A workaround is to use NUM2LONG(rb_funcall(str, rb_intern("size"), 0)).

This should be an easy fix if anyone wants to contribute it.