It's probably a good idea to run m4 with the -P or --prefix-builtins option. Then you can use index freely, just not m4_index.
/ Niels Möller ()
Previous text:
2003-02-06 15:37: Subject: index() in a testsuite
index is an m4 macro. The simple answer is to use [[index]] but see the m4 Info manual about quoting.
/ Martin Stjernholm, Roxen IS