I don't know if the content of the @macro is relevant or not, but the
length is important.
Indeed. What your test is apparently hitting is the hardwired limit in
makeinfo.c:
#define EXECUTE_STRING_MAX 16*1024
(This "execution string" stack is the way bfox implemented macros, among
other things.)
I cannot see an easy way to test for the overflow, so I merely (and
uselessly) bumped the limit to 32k. Since overall we want to move to
your implementation anyway ...
Thanks for the detailed report, as always.
karl
