[rsyslog] [PATCH] Fix latest "NetBSD fix"

[Michael Biebl]

Hi,

the latest NetBSD related commits (configure.ac/Makefile.am) break the
compilation on Linux. Variable assignments mustn't have whitespace,
otherwise have_libdl and as a result HAVE_LIBDL is not defined.

To fix the issue though, I'd simply recommend to remove the hard coded
-ldl from Makefile.am instead of the proposed solution.
The AC_CHECK_LIB macro [2] already appends -ldl to LIBS, depending on
the outcome of the check [2]. The global LIBS variable (similar to
CFLAGS e.g.) is used for linking all binaries.

Linked (see, I learned my lesson :-p) is the patch [1] to address this.

The only downside of AC_CHECK_LIB is, that it assigns -ldl (and -lrt)
to the global LIBS variable. This means that all binaries are linked
with -ldl -lrt, as mentioned above, even if they don't need them (i.e.
ommysql/ompsql plugin,  rklogd rfc3195d).

I can prepare a patch to address this issue correctly, if wanted.

Cheers,
Michael

[1] http://debs.michaelbiebl.de/rsyslog/fix_dl_compilation.patch
[2] http://www.gnu.org/software/automake/manual/autoconf/Libraries.html

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