than "sh" for executing commands. Useful in a cross-build environment.
* Do not define _PATH_BSHELL, because it is no longer used by make.
* In addition to _PATH_DEFSHELLDIR (the directory in which the default
shell can be found), define _BASENAME_DEFSHELL (the shell's basename).
* Use shell builtin string manipulation instead of sed to extract
the directory name and basename from $BSHELL.
OK sjg, christos
Instead of adding MAKE_BOOTSTRAP for hosted environments, i.e., when
you want things simple, instead add MAKE_NATIVE to get those hugely
important features like __RCSID().
Also, get rid of a now-unneeded -I.
value for _PATH_DEFSHELLDIR. In theory, _PATH_DEFSHELLDIR will also be
used to find csh, but ".SHELL csh" shouldn't be used anywhere in our source
tree, and this make shouldn't be used for other things.
This should cause nbmake to use the right shell for most purposes when
cross-compiling from Solaris.
