Configuration}). Alternatively, set up a test results cache file with
the correct values for the host system (@pxref{Caching Results}).
+@ovindex cross_compiling
To provide a default for calls of @code{AC_RUN_IFELSE} that are embedded
in other macros, including a few of the ones that come with Autoconf,
you can test whether the shell variable @code{cross_compiling} is set to
compiled. It defaults to the result of running @command{config.guess}.
@item --host=@var{host-type}
-@ovindex cross_compiling
the type of system on which the package will run. By default it is the
same as the build machine. Specifying it enables the cross-compilation
mode.