-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 According to Paolo Bonzini on 11/10/2008 5:06 AM: >> 1) I don't have access to systems that are old or weird enough to check >> if the performance penalty will happen often. What do you think? A single-fork fallback is better than nothing, and better than any expr or other multi-fork fallback. But preferring a builtin is definitely the way to go. >> >> 2) If ksh had a way to print without interpreting escapes *and dashes*, >> I'd be glad to add it; do you know one? > > I thought of one after lunch: "print -r -- FOO". This way we can print > without forking on bash, zsh, ksh, ash/dash. 'man print' on Solaris 10 shows that ksh also understands "print -R -" as a way to print "-" (but not "-n" or "--"). But you are right in realizing that "print -r --" seems to work nicely. At any rate, that means we should probably teach m4sh to try "print -r --" as one of its options, prior to "printf %s\\n", during _AS_ECHO_PREPARE. - -- Don't work too hard, make some time for fun as well! Eric Blake ebb9@xxxxxxx -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (Cygwin) Comment: Public key at home.comcast.net/~ericblake/eblake.gpg Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkkYOQcACgkQ84KuGfSFAYAOOwCdEpPvxch0jfDi1Mv2Okalm/vI KbIAn2407Ron5tQfg3rGAlIUqYKoeoSQ =K5/F -----END PGP SIGNATURE----- _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
