Re: autobuild.m4

[Paul Eggert]

Bruno Haible <address@hidden> writes:

>       if test "$?" != 0
>   I thought $? always expands to a non-empty sequence of digits. Are
>   you expecting a negative integer as value of "$?" ?

Even if $? were negative, usages like "test -1 != 0" would work on any
host conforming to POSIX, as well as on all practical hosts that I
know of.

(But it's not negative.  :-)