This is a quite-a-bit-better-than-Lex lexer. Used in the
literate-programming stuff. You won't need it unless you're hacking
on some of our more obscure stuff.
+On our machines, the version in @/bin@ doesn't work; you need the
+GNU version. Find out by saying @flex --version@ (our current version
+is 2.5.3, but maybe earlier ones will work). If it doesn't know about
+the @--version@ flag, it ain't the right @flex@.
\item[Yacc:]
\index{pre-supposed: non-worthless Yacc}
The best way around it is to say
\begin{verbatim}
- TMPDIR=<dir>
+export TMPDIR=<dir>
\end{verbatim}
in your @build.mk@ file.
Then GHC and the other @fptools@ programs will use the appropriate directory