LinuxQuestions.org - ERROR! Libpcap library/headers (libpcap.a (or .so)/pcap.h) not found

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OtagoHarbour

08-19-2012 10:05 PM

ERROR! Libpcap library/headers (libpcap.a (or .so)/pcap.h) not found

I am running Ubuntu 11.10. I downloaded libpcap-1.3.0.tar.gz to /temp, unzipped and untarred it, went into /tmp/libpcap-1.3.0 and did the following

Code:

./configure

make

make install

Everything went w/o errors but when I subseqnetly download barnyard2-1.9.tar.gz to /tmp, unzip and untar it, go into /tmp/barnyard2-1.9 and run

Code:

./configure

I get

Code:

ERROR!  Libpcap library/headers (libpcap.a (or .so)/pcap.h)

  not found, go get it from http://www.tcpdump.org

  or use the --with-libpcap-* options, if you have it installed

  in unusual place.  Also check if your libpcap depends on another

  shared library that may be installed in an unusual place

When I do a search for libpcap.a, I find

Code:

/tmp/libpcap-1.3.0/libpcap.a

/usr/local/lib/libpcap.a

It would appear that I have not installed it in a way that it can be found by the system. It could be that I installed it as myself and not as root.

Any assistance with fixing this problem would be greatly appreciated.

Peter.

bigrigdriver

08-19-2012 11:49 PM

Quote:

It would appear that I have not installed it in a way that it can be found by the system. It could be that I installed it as myself and not as root.

You could not have written anything outside of your /home directory as user; only as root.

With regard to the failure of barnyard to ./configure, it may be that it is looking for a higher version of libpcap that the one you have installed, or it may be looking for libpcap in another location.

Things to try:
1) inspect the source code to see the location it expects to find libpcap, the either symlink or hard link your libpcap to that location.
2) rerun ./configure with the appropriate option to search for libpcap in it present location to see if that works.

Ygrex

08-20-2012 12:11 AM

make sure that headers can be found:

Code:

`gcc -print-prog-name=cc1` -v -o /dev/null </dev/null

and, unless you are going to compile against libpcap.a, that libpcap is in cache:

Code:

$ /sbin/ldconfig -p | grep libpcap

OtagoHarbour

08-20-2012 08:41 PM

Quote:

Originally Posted by bigrigdriver (Post 4758739)

Thank you for your reply

All of the missing files it mentions are in /tmp/libpcap-1.3.0. I ran the following

Code:

./configure --with-libpcap-libraries=/tmp/libpcap-1.3.0 --with-libpcap-includes=/tmp/libpcap-1.3.0

and still got

Code:

ERROR!  Libpcap library/headers (libpcap.a (or .so)/pcap.h)

  not found, go get it from http://www.tcpdump.org

  or use the --with-libpcap-* options, if you have it installed

  in unusual place.  Also check if your libpcap depends on another

  shared library that may be installed in an unusual place

Thanks,
Peter.

OtagoHarbour

08-20-2012 08:44 PM

Quote:

Originally Posted by Ygrex (Post 4758751)

make sure that headers can be found:

Code:

`gcc -print-prog-name=cc1` -v -o /dev/null </dev/null

Returned

Code:

ignoring nonexistent directory "/usr/lib/gcc/i686-linux-gnu/4.6.1/../../../../i686-linux-gnu/include"

#include "..." search starts here:

#include <...> search starts here:

 /usr/lib/gcc/i686-linux-gnu/4.6.1/include

 /usr/local/include

 /usr/lib/gcc/i686-linux-gnu/4.6.1/include-fixed

 /usr/include

End of search list.



Analyzing compilation unit

Performing interprocedural optimizations

 <*free_lang_data> <visibility> <early_local_cleanups> <whole-program> <inline>Assembling functions:



Execution times (seconds)

 TOTAL                :  0.00            0.00            0.00                626 kB

Quote:

and, unless you are going to compile against libpcap.a, that libpcap is in cache:

Code:

$ /sbin/ldconfig -p | grep libpcap

Returned

Code:

libpcap.so.0.8 (libc6) => /usr/lib/i386-linux-gnu/libpcap.so.0.8

Thanks,
Peter.

Ygrex

08-24-2012 06:20 PM

well, did you check if pcap.h can be found in one of the listed directories for includes?

OtagoHarbour

08-26-2012 04:22 PM

Quote:

Originally Posted by Ygrex (Post 4763566)

well, did you check if pcap.h can be found in one of the listed directories for includes?

Yes indeed!

Code:

peter@peter-Inspiron-620:~$ sudo find / -name pcap.h -print

/tmp/libpcap-1.3.0/pcap/pcap.h

/tmp/libpcap-1.3.0/pcap.h

/usr/local/include/pcap/pcap.h

/usr/local/include/pcap.h

peter@peter-Inspiron-620:~$

Thanks,
Peter.

chrism01

08-26-2012 05:41 PM

Surely libpcap is in the repos?

Ygrex

08-27-2012 01:05 AM

there's should be config.log file with exact test code that failed

knudfl

08-27-2012 02:56 AM

The development files for libpcap, Ubuntu 11.10 :

sudo apt-get install libpcap-dev

http://packages.ubuntu.com/oneiric/libpcap-dev
http://packages.ubuntu.com/oneiric/libpcap0.8-dev

.

OtagoHarbour

08-28-2012 01:54 PM

Quote:

Originally Posted by knudfl (Post 4765151)

The development files for libpcap, Ubuntu 11.10 :

sudo apt-get install libpcap-dev

http://packages.ubuntu.com/oneiric/libpcap-dev
http://packages.ubuntu.com/oneiric/libpcap0.8-dev

.

That worked!!! Thanks very much! I did the same for snort as well.

OtagoHarbour

08-28-2012 01:58 PM

Quote:

Originally Posted by Ygrex (Post 4765088)

there's should be config.log file with exact test code that failed

There is config.log in /tmp/barnyard2-1.9 . It ends with a bunch of #defines now that ./configure has worked properly.

Thanks,
Peter.

OtagoHarbour

08-28-2012 01:59 PM

Quote:

Originally Posted by chrism01 (Post 4764875)

Surely libpcap is in the repos?

Not sure I understand the question but it was only in the directories I mentioned.

Thanks,
Peter.

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