pointer assert(3)'s assume sizeof(pointer) == sizeof(int)

[EricSchnoebelen]

in watching the compile of sx/sasl_gsasl.c on a NetBSD/alpha system, I saw a lot of warnings from gcc about converting a pointer to an integer if a different size.

In tracking it down, all of the occurrences were of the following form:

char *foo;

assert((int *)foo);

A better form, that would better describe the intent is:

char *foo;

assert((foo != NULL));

(I'm sure files other than sx/sasl_gsasl.c have similar constructs.)

[EricSchnoebelen]

patch against today's SVN repository to clean up the asserts.

[smoku]

In [575]: Merged Eric Schnoebelen assert fixes. Closes #215