regex: fix test for deciding whether to use smatcher or lmatcher

regex: fix test for deciding whether to use smatcher or lmatcher

smatcher can only be used if the number of states does not exceed
the number of bits of type for "states" in smatcher, which is "int".
However, the code that tests this condition is formulated in terms
of "states1", which is defined to be "states", which in turn is
redefined to "char *" before the test.
If the size of a "char *" is larger than that of an "int", the test
would therefore produce the wrong result.
Define "states1" to "int" so that it does not get redefined to "char *".

The code was introduced in 29c4dc3 (Wed May 3 10:50:31 2000 +0000).
Unfortunately, the commit message does not explain where the code
was copied from, so it is not clear if this problem has already
been fixed upstream.

Reported-by: Donald Allen <donaldcallen@gmail.com>
Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>