> also some rules are not so useful (the `space tab' combination > is used several times correctly in some macros).
Consider the trick I used here, for IFS in m4sh.m4: http://lists.gnu.org/archive/html/autoconf-patches/2006-04/msg00008.html If space-tab is really a requirement of the macro, it must be quoted to be protected to the shell. Therefore, we should always be able to break the quoting into two pieces, so that there is no longer a space-tab in the .m4 file. -- Eric Blake
