[Rd] configure issue (PR#9379)

[gml4410 at ggr.co.uk]

Full_Name: Gordon Lack
Version: 2.4.0
OS: Redhat Linux AS2.1
Submission from: (NULL) (198.28.92.5)


Not sure whether this is a configure issue or an R one.

It's only a minor issue, so this is really just FYI.

The code in configure checks for the version of makeinfo by splitting the
version string into a major and minor component.  The tests on these assume they
are numeric.

RHAS2.1 shipped with a makeinfo version of "4.0b"

The result is this:
=====
checking whether makeinfo version is at least 4.7...
 ./configure: test: 0b: integer expression expected
yes
=====

ie: an error reported, but the test passed (4.0b > 4.7!!!).

And there is no command line option to tell configure not to run the makeinfo
commands (you can set r_cv_prog_makeinfo_v4=0 in your environment, but that
isn't "right").