Committed, sim: make erc32 buildable without in-tree readline
The "gdb" CVS module includes in-tree readline, but the "sim"
module does not. The better change (than to add that CVS module
to sim) seemed to be to make the erc32 simulator buildable
without in-tree readline. Having a dependency on
../../readline/libreadline.a can't help at this level in the
tree, so it wasn't useful other than perhaps to point out the
error. Tested with and without in-tree readline (i686-linux),
and for sanity the error path on a system without readline at
* configure.ac: Add test for readline, substitute READLINE.
* Makefile.in (READLINE_LIB): New substituted-contents variable.
(SIM_EXTRA_LIBDEPS): Don't set.
(SIM_EXTRA_LIBS): Use $(READLINE_LIB) instead of
* configure: Regenerate.