The class clearly intends build tools to depend upon the dummy texinfo, but it
does so using the class-cross override for cross recipes, and libtool-cross
doesn't inherit cross. Add a special case to cover this.

Signed-off-by: Christopher Larson <chris_larson@mentor.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>

To unpack that to more than a single line: -native and -cross recipes are made
to use the dummy Texinfo utilities provided by texinfo-dummy-native if they
invoke those utilities at build time. The target-architecture (cross-compiled)
recipes still use the genuine Texinfo utilites. Right now, they still use
the host system's Texinfo utilities, but could be made to use the
texinfo-native recipe we already ship with some config file changes.

Signed-off-by: Max Eliaser <max.eliaser@intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

The class itself currently does nothing. The idea is to mark all recipes that
make use of the texinfo utilities. In the future, this class could be used to
suppress the generation/formatting of documentation for performance,
explicitly track dependencies on these utilities, and eliminate Yocto's
current dependency on the host system's texinfo utilities.

Signed-off-by: Max Eliaser <max.eliaser@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>