On Fri, Feb 17, 2023 at 10:13 PM Lawrence Velázquez <larryv@xxxxxxx> wrote: > > 1) Autoconf uses ${1+"$@"} instead of "$@" to work around a bug > in pre-SVR3 Bourne shells. Fascinating. This made me Google SVR3. That's System V, Release 3, right? 1987. Before the first release of bash and zsh. Roman.