A bunch of undefined errors occur when make

[Jiwj-sudo]

When I configure./autogen.sh and./configure, and then make, I get a bunch of undefined errors. How to solve it?

[stuartdhayes]

I've just experience this problem in version 2.3.
Some how the files generated by generate_fsm.py were all 0 length, ie
BUILT_SOURCES = src/htmlparser/htmlparser_fsm.h
src/htmlparser/jsparser_fsm.h
src/tests/statemachine_test_fsm.h

To fix this I had to clean out the generated file, which you can use:
make maintainer-clean-generic

Then you can configure and rebuild again, providing you have the correct version of python installed.