newer.
* configure: zsh doesn't like ${1+"$@"}.
Update needed GNU make version.
* builds/toplevel.mk: Check for `$(eval ...)'.
* docs/INSTALL.GNU, docs/INSTALL.CROSS, docs/INSTALL.UNIX: Document
it.
autogen.sh and pointer to README.CVS
* README.CVS: add common problem description and solution
when running autogen.sh
* docs/INSTALL: add reference to MacOS X
* docs/MAKEPP, docs/INSTALL.MAC: add new documentation files
* docs/TODO: remove obsolete items