Wireshark-users: Re: [Wireshark-users] Libgcrypt is not found when trying to install wireshark 1.
Georgopoulos, Panagiotis wrote:

.         checking for libgcrypt-config...no

.         checking for LIBGCRYPT - version >= 1.1.92... no

.         libgcrypt not found, disabling ipsec decryption.

                    However i do have libgcrypt11 installed (and I
reinstalled it in my ubuntu 9.04 using synaptics). Where is wireshark trying
to find it? How can I link it properly so that I would be able to use it for
decrypting packets?

I'm not familiar with Ubuntu but I'm guessing that maybe a libgcrypt development package with a name something like libgcrypt-devel needs to be installed. (That's what it's called on Fedora).