2 # quote(args) - convert args to single-quoted string
3 define(`quote', `ifelse(`$#', `0', `', ``$*'')')
4 # dquote(args) - convert args to quoted list of quoted strings
5 define(`dquote', ``$@'')
6 # dquote_elt(args) - convert args to list of double-quoted strings
7 define(`dquote_elt', `ifelse(`$#', `0', `', `$#', `1', ```$1''',
8 ```$1'',$0(shift($@))')')