(version 1.6.5 or newer). If you are installing binary packages, you
may need to install guile-devel or guile-dev or libguile-dev too.
-@item @uref{http://www.gnu.org/software/flex/,Flex} (version 2.5.4a or newer).
-
-WARNING: plain Flex 2.5.4(a) generates invalid C++ code. GCC 3.x
-chokes on this. If you wish to use GCC 3.x, make sure that your
-distribution supports g++ 3.x and flex. For workarounds, see
-lexer-gcc-3.1.sh in the source directory.
-
@item @TeX{}.
@TeX{} is used as an optional output backend.