[Bug other/40618] when flex is not installed, gcc build stop because of a non existent file

[ycollet at freesurf dot fr]

------- Comment #2 from ycollet at freesurf dot fr  2009-07-02 17:39 -------
It should be relatively easy to make configure emit an error when it can't find
flex. I have lost a couple of hours before figuring out that flex was missing.

YC


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40618