[syslog-ng] linking changes

[Balazs Scheidler]

On Wed, 2011-02-23 at 17:35 +0100, Corinna Vinschen wrote:
> On Feb 23 17:29, Corinna Vinschen wrote:
> > On Feb 23 16:09, Balazs Scheidler wrote:
> > > -libdbparser_la_LIBADD = ../../lib/libsyslog-ng.la libsyslog-ng-patterndb.a
> > > +libdbparser_la_LIBADD = ../../lib/libsyslog-ng.la
> > 
> > This fails to build on Cygwin because libdbparser_la_LIBADD is missing a
> > @OPENSSL_LIBS@ (needed by patternize.c).
> 
> Erm... btw., is it really necessary to link against OpenSSL, just to get
> the RAND_bytes function?  What about testing for /dev/random and using
> that instead?  That wouldn't introduce any external dependencies.

Well, yes. But /dev/random is not available on all platforms that
syslog-ng uses (Solaris 8 for example), and libssl nicely wraps that
away, not to mention that it supports EGD (entropy gathering daemon) and
hand-crafted PRNG seeding via the RANDFILE environment variable.

I simply had no time for properly writing/validating an alternative
solution and syslog-ng depends on openssl in most cases anyway. (if TLS
support is enabled).

But IIRC patternize.c will compile without openssl installed
(OPENSSL_LIBS will be empty), in that case the UUIDs generated will not
be guaranteed to be unique.

-- 
Bazsi