Document (in INSTALL.md) that when building from git, there must be a sufficiently recent version of flex already availabl and that without such a version, flex will not build. Make it clear that the way to do this is by building from a release tarball if the underlying operating sytem does not provide a recent enough version.
Document (in INSTALL.md) that when building from git, there must be a sufficiently recent version of flex already availabl and that without such a version, flex will not build. Make it clear that the way to do this is by building from a release tarball if the underlying operating sytem does not provide a recent enough version.