Make only binaries/libs or disable-doc

[Wink Saville]

I'm trying to build
(https://travis-ci.org/winksaville/baremetal-hi/builds/88480472) a
cross binutils for arm-eabi on the continuous integration system;
travis-ci.org. It's failing because the standard container doesn't
have makeinfo and probably other dependencies:

WARNING: `makeinfo' is missing on your system.  You should only need it if
you modified a `.texi' or `.texinfo' file, or any other file
indirectly affecting the aspect of the manual.  The spurious
call might also be the consequence of using a buggy `make' (AIX,
DU, IRIX).  You might want to install the `Texinfo' package or
the `GNU make' package.  Grab either from any GNU archive site.
make[3]: *** [bfd.info] Error 1
make[3]: Leaving directory `/home/travis/tmp/binutils/build/bfd/doc'


Is there a way to disable building the documentation or a way to only
build the "binaries/libs"?

-- Wink