I'm writing a build system that places one Make include file in each directory, and includes them from a single master Makefile recursively. It can handle builds for multiple architectures all in the same run, without recursive invocations of Make.
Along the way, I got a strange craving for being able to create local tempoarary autoconf variables, for elimination of common subexpressions that are too ephemeral to merit mention in configure.ac. I know, this is getting away from the original autoconf concept of 'variables are defined in configure.ac, and expanded in .in files', but it's not *that* far away. Has anyone else had similar urges? - Dan
