> I've grepped through the entire tree and can't see how the configure > variable with_multisrctop is ever set to anything than itself.
./config-ml.in sets it as part of the multilib setup, used by libiberty, newlib, etc. Please read the ./etc/configure.texi documentation, which explains it. > For example of hoops, see libiberty configure script which attempts > to determine where install-sh is located via series of if/then/elses > and sets that to ibiberty_topdir. Libiberty is different because it's built both with and without the multilib hooks. > Note that this doesn't actually really work that well as intended > since it passes this value to AC_CONFIG_AUX_DIR($libiberty_topdir), > isn't designed to accept shell variables, so a directory with the > actual name "$libiberty_topdir" is created in the libiberty > directory if you run autoconf. That's a different bug :-P
