[httperf] httperf bugfix

[Finn Smith]

Hi,

To get httperf to compile on my computer running MacOS X I had to make
one small change to the lib/ssl_writev.c file. The alloca system
function is provided in stdlib.h rather than in alloca.h. Here is the
diff for the file lib/ssl_writev.c :

34c34,36
< #include <alloca.h>
---
> /* #include <alloca.h> */
> /* stdlib.h provides the alloca functionality. */
> #include <stdlib.h>

The program seems to execute fine with that change.

Just thought you'd like to know. I don't know if you can incorporate
these changes into the configure script for httperf, but at the very
least it's worth putting a note of warning up for people.

-F