building bro w/ dynamic libpcap?

Zeek
1

Hello,

Trying to build bro with pf_ring's libpcap, but the 'configure' script seems to choose static libpcap.a over libpcap.so:

$ ./configure --with-pcap=/usr/local
Build Directory : build
Source Directory: /home/bmasuda/RPMBUILD/BUILD/bro-2.4.1
-- Found sed: /usr/bin/sed
-- Found Perl: /usr/bin/perl (found version "5.16.3")
-- Found FLEX: 2.5.37
-- Found BISON: /usr/bin/bison
-- Found PCAP: /usr/local/lib/libpcap.a

pf_ring is installed in /usr/local/lib:

$ ls -l /usr/local/lib
total 3536
drwxr-xr-x. 2 root root 96 Mar 3 07:35 daq
-rw-r--r--. 1 root root 461618 Mar 2 21:13 libpcap.a
lrwxrwxrwx. 1 root root 16 Mar 3 07:35 libpcap.so.1 -> libpcap.so.1.7.4
-rwxr-xr-x. 1 root root 1452912 Mar 2 21:13 libpcap.so.1.7.4
-rw-r--r--. 1 root root 692966 Mar 2 21:13 libpfring.a
-rwxr-xr-x. 1 root root 517664 Mar 2 21:13 libpfring.so
lrwxrwxrwx. 1 root root 17 Mar 3 07:35 libsfbpf.so.0 -> libsfbpf.so.0.0.1
-rwxrwxr-x. 1 root root 486933 Oct 10 2015 libsfbpf.so.0.0.1

I would like for bro to be linked dynamically with the libpcap.so instead of libpcap.a. How can I specify this?

Above example is with bro 2.4.1, but same thing with 2.5 as well.

Thanks,
Bond

2

You seem to be missing the libcap.so -> libpcap.so.1(.7.4) symlink. So
that would be expected behavior in this case (I am not even sure you can
easily tell a linker to link against a file with a .so.1 file extension).

Johanna