Christian Weisgerber, 07 Apr 2016 15:41: > As ksh(1) explains under "POSIX mode": > > o Occurrences of \" inside double quoted `..` command substitutions. > In POSIX mode, the \" is interpreted when the command is interpreted; > in non-POSIX mode, the backslash is stripped before the command > substitution is interpreted. For example, echo "`echo \"hi\"`" > produces ``"hi"'' in POSIX mode, ``hi'' in non-POSIX mode. To avoid > problems, use the $(...) form of command substitution. > > The configure script switches the shell into POSIX mode (set -o posix), > but expects the other behavior. > > To illustrate: > $ sh -c 'echo "`echo \"hi\"`"' > hi > $ sh -o posix -c 'echo "`echo \"hi\"`"' > "hi" > > The problem is that our sh's idea of POSIX-mandated behavior diverges > in this regard from that of other popular shells like bash or FreeBSD > sh. I think it's time to change our shell. I'll send something > to tech@ later tonight.
great catch. but why set posix mode and then expect the opposite? -f -- 30 minutes of begging is not considered foreplay.