cs143

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undefined reference to `yylex'

1

This problem is caused by c++ library virus c library. See [here](https://stackoverflow.com/a/8424044/11571961). The solution is quite simple. Just link lexer with the static lc library. Edit the `Makefile` where lexer...

colinaaa

Which version of cs143 for this repos?

1

I just want to ask which version of cs143 for this repos? Thank you very much.

ghost

according to [here](https://courses.edx.org/courses/course-v1:StanfordOnline+SOE.YCSCS1+1T2020/courseware/0a40e5575adf4310a4046e8500760cfc/57fc1da4e20b42248207b7944134f6df/?activate_block_id=block-v1%3AStanfordOnline%2BSOE.YCSCS1%2B1T2020%2Btype%40sequential%2Bblock%4057fc1da4e20b42248207b7944134f6df), you should comment out line 29 of the file `parser-phase.cc` like this: ```cpp //int curr_lineno; // needed for lexical analyzer ``` to avoid linker error.

colinaaa