LinuxQuestions.org - [SOLVED] libdnet.1: cannot open shared object file: No such file or directory

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libdnet.1: cannot open shared object file: No such file or directory

I am using Unbuntu 11.4. (No newer version of Ubuntu works on this old desk top.) I decided to build the latest version of Snort on this server. Ubuntu does not support "sudo apt-get install" for the latest version of Snort since this version of Ubuntu is no longer supported. Hence I downloaded a tar ball and build Snort with ./configure and make. Now it cannot find a shared library when I try to run snort. These are the messages I get.

Code:

OtagoHarbour@WebServer:~$ echo $PATH

/usr/local/lib:/home/OtagoHarbour/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games

OtagoHarbour@WebServer:~$ snort -v

snort: error while loading shared libraries: libdnet.1: cannot open shared object file: No such file or directory

OtagoHarbour@WebServer:~$ ls /usr/local/lib/libdnet.1

/usr/local/lib/libdnet.1

OtagoHarbour@WebServer:~$ ls -l /usr/local/lib/libdnet.1

lrwxrwxrwx 1 root root 13 2012-08-11 21:52 /usr/local/lib/libdnet.1 -> libdnet.1.0.1

OtagoHarbour@WebServer:~$ sudo snort -v

snort: error while loading shared libraries: libdnet.1: cannot open shared object file: No such file or directory

OtagoHarbour@WebServer:~$ whereis libdnet.1.0.1

libdnet.1.0: /usr/local/lib/libdnet.1.0.1

IOW the library is in the search path but the snort executable does not find it.

Try to define the environment variable LDFLAGS as

Code:

export LDFLAGS='-L/usr/local/lib

/usr/local/lib is not a standard place for shared objects, therefore you have to instruct the linker to search for libraries there.

Quote:

Originally Posted by colucix (Post 5046337)

Try to define the environment variable LDFLAGS as

Code:

export LDFLAGS='-L/usr/local/lib

/usr/local/lib is not a standard place for shared objects, therefore you have to instruct the linker to search for libraries there.

Thanks for replying but I still have the same problem.

Code:

OtagoHarbour@WebServer:~$ export LDFLAGS='-L/usr/local/lib'

OtagoHarbour@WebServer:~$ snort -v

snort: error while loading shared libraries: libdnet.1: cannot open shared object file: No such file or directory

OtagoHarbour@WebServer:~$

Thanks,
OH

I meant that LDFLAGS should be defined before compiling. Otherwise try

Code:

export LD_LIBRARY_PATH=/usr/local/lib

or if it was already set

Code:

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib

Quote:

Originally Posted by colucix (Post 5046347)

I meant that LDFLAGS should be defined before compiling. Otherwise try

Code:

export LD_LIBRARY_PATH=/usr/local/lib

or if it was already set

Code:

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib

The former solved the problem.

Thanks,
Peter.