Hello, I was reading the portability section of the autoconf manual and I believe there's an error in one of the examples in §11.6: Shell Substitutions.
https://www.gnu.org/software/autoconf/manual/autoconf.html#Shell-Substitutions The examples in question are found at the end of the subheading ${var+value}, quoted here: > Perhaps the easiest way to work around quoting issues in a manner > portable to all shells is to place the results in a temporary variable, > then use ‘$t’ as the value, rather than trying to inline the expression > needing quoting. > > $ /bin/sh -c 't="a b\"'\''}\\"; echo "${a-$t}"' > b c"'}\ > $ ksh -c 't="a b\"'\''}\\"; echo "${a-$t}"' > b c"'}\ > $ bash -c 't="a b\"'\''}\\"; echo "${a-$t}"' > b c"'}\ I had a double take upon reading this. I think the output for all three of those example commands should read a b"'}\ rather than b c"'}\ as it appears in the manual. Cheers, -- Nick Bowler, Elliptic Technologies (http://www.elliptictech.com/)
