+#######################
+### Shell functions ###
+#######################
Let's use m4_text_box here.
I used the "m4_text_box"-like comment so that it stands out in the code
of autotest, not (only) to have a nice output in the testsuite.
And are we doing this in the optimal diversion?
Do we need any m4sh support for writing portable shell functions?
We could use AS_REQUIRE_SHELL_FN instead, but that one is more useful if
you don't want to emit the shell function unless necessary (which is not
the case here).
I debated about making:
m4_cond(TEST, [not,] VAL1, IF-[NOT-]VAL1, ...)
I think it is more complicated than necessary. The lazy m4_if is nice,
though I'm not sure I like the name. Also, it adds one more "quoting
rule" for the "non-initiated" (it took me already a while to get used
not to quote m4_if arguments...).
Paolo
