[mrtg] Re: LD_LIBRARY_PATH & cron errors..(SOLVED)

[Demian Hanks]

After a response from Sethilvel Rangaswamy, and a closer look at
the makefile, I came up with the following options/solutions:

1) RTFM, paying close attention to the README
The readme suggests using:
./configure  --with-gd=../gd-1.7.3 --with-z=../zlib --with-png=../libpng
which I didn't realize would create a dependency on a relative path.
Absolute paths here would and did solve the problem, i.e:
./configure  --with-gd-lib=/usr/local/lib --with-gd-inc=/usr/local/include
--with-z-lib=/usr/local/lib --with-z-inc=/usr/loc
al/include --with-png-lib=/usr/local/lib --with-png-inc=/usr/local/include

Part of the way I figured this out was:
[jafo:/export/src/new/mrtg-2.8.9/run] {2085} /usr/bin/ldd rateup
        libm.so.1 =>     /usr/lib/libm.so.1
        libpng.so.2 =>   (file not found)
        libc.so.1 =>     /usr/lib/libc.so.1
        libdl.so.1 =>    /usr/lib/libdl.so.1

and Sethil's suggestion listed below.

2) Another option was to sym-link libpng.so.2 to /usr/lib
    Probably not the best option, but it works.

3)
BEGIN QUOTE    "
    From: Senthilvel Rangaswamy <senthilr at Eng.Sun.COM
    Re: [mrtg] LD_LIBRARY_PATH & cron errors..
    Date: Tue, 25 Jan 2000 11:37:33 -0800
        Add this to your Makefile.
        LD_RUN_PATH = <path to your png libraries>
        before compiling.
        It worked for me.
    --
    ..Senthil

    "Laziness, Impatience and Hubris. Three great virtues of a programmer.."

                                                           - Larry Wall.
END QUOTE    "

Anyway, thanks to Senthil for his quick response, and clarity.
I thought I'd post this back to the list so that there would be a hopefully
clear
explanation of what was wrong, and how to fix it.
I look forward to figuring out the rest of this...

Thanks,
Demian Hanks
CSBS Network Admin


Demian Hanks wrote:

> I have just set up mrtg 2.8.9, the compile of all the dependencies
> seemed
> to go fine as well as mrtg itself, but I am recieving email errors from
> cron:
>
> PROBLEM: rateup died from Signal 9
>  with Exit Value 0 when doing router 'xxx.xxx.xxx.3.1'
>  code was 9, retcode was . If this happens all the time,
>  you should probably investigate the cause. :-)
>
> ld.so.1: /export/src/new/mrtg-2.8.9/run//rateup: fatal: libpng.so.2:
> open
> failed: No such file or directory
>
> There are a few messages in the archive that touch on this problem, but
> I haven't been able to find one that resolves it.
> There is one message from tkennedy at newsreal.com had explains that this
> is an LD_LIBRARY_PATH problem
> (http://www.ee.ethz.ch/~slist/mrtg/msg00381.html),
> but I can't seem to get my cron to set this environment correctly.
>
> I came to the same conclusion. If I run mrtg by hand in a shell that has
>
> LD_LIB.. defined,
> everything is fine, but run from cron it complains.
>
> I know I can write a script to handle this, but it seems like the wrong
> way go(?).
> I would rather recompile, if I can find a way to resolve it.
>
> Any suggestions?
> Thanks in advance,
>
> Demian Hanks
> CSBS Network Admin
>
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