[ns] Bug: ns build breakage under Solaris8

[Florian-Daniel Otel <otel@ce.chalmers.se>]

All,

Description:

ns builds break  in aodv code on Solaris 8 w/ latest kernel patches
(108528-07 and higher) applied


Reason: 

These patches touch /usr/include/sys/stream.h that defines a "struct bcache"
which name-conflicts w/ some aodv code. 

Quick and _very_ dirty solution (until proper code fix):

Edit your /usr/include/sys/stream.h and surround the above definition
w/ preprocessor conditionals e.g.

...
#ifndef NS_BREAKAGE
typedef struct  bcache {
        kmutex_t                mutex;
        struct kmem_cache       *buffer_cache;
        struct kmem_cache       *dblk_cache;
        int                     alloc;
        int                     destroy;
        size_t                  size;
        uint_t                  align;
} bcache_t;
#endif
...


Than edit your ns Makefile.in / Makefile and add "-DNS_BREAKAGE" to your
complier flags.


Enjoy,

Florian.