clang opt redirect and symlinks for it.  Made llvm opt redirect point to rust llvm build.
go back to system gdb.
Racket slideshow app cmdline invocations
a wrapper to aid getting time reports out of makefile subcommand invocations.
wrapper for invoking pjs js shell.
wrapper for js shell invocation.
python redirects.
redirects for actools to brew utils.  I think I made these in a mad effort to get firefox/js shell building.  They may not be necessary.