One recommendation, update the build doc to add the bison3 dependency. CentOS 6.5  Final still has bison2. Once I did this build worked fine.  

  1. Download Bison 3.0 from GNU.   
  2. rpm -e bison 
  3. build and install bison3. 
  4. update your paths ( updatedb )
  5. build syslog-ng ( make clean; ./configure ; make ) 




On Jul 28, 2014, at 5:14 PM, Gergely Nagy <algernon@balabit.hu> wrote:

Scot Needy <scotrn@gmail.com> writes:

Sorry if this is a dupe.


Looked through my mail archives and didn’t see any hits.


Trying to compile syslog-ng on CentOS 6.5 final and make fails on bison arguments.

This is a tough problem to fix properly, so I'll offer three workarounds:

- You can either upgrade to bison 3, which understands those options
- You can change Makefile.am, and remove/comment out the AM_YFLAGS line
- You can download a tarball[1] with pre-generated grammar files, which
  do not need neither bison, nor flex.

  [1]: https://github.com/balabit/syslog-ng/releases/download/v3.5.5/syslog-ng-3.5.5.tar.gz

The problem is that bison3 changed to far more verbose, multi-line
warnings, which make the compile awfully noisy. We turn them off with
the -Wno-yacc Wno-other flags, but bison2 does not understand those.

The correct way would be to figure out which bison we use, and use the
appropriate command-line, but the patch to do that has not been written
yet.

Hope this helps!

--
|8]
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