On wheezy amd64, I'm getting:
faheem@orwell:~$ sudo apt-get install libjpeg62-dev libtiff4-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
libtiff4-dev : Depends: libjpeg-dev
E: Unable to correct problems, you have held broken packages.
It is fairly obvious what the problem is.
libtiff4-dev depends on the virtual package libjpeg-dev, which is
currently provided by the installed libjpeg8-dev.
faheem@orwell:~$ sudo apt-get install libjpeg-dev
Reading package lists... Done
Building dependency tree
Reading state information... Done
Note, selecting 'libjpeg8-dev' instead of 'libjpeg-dev'
libjpeg8-dev is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
However, libjpeg62-dev also provides libjpeg-dev. When installing
libjpeg62-dev, libjpeg8-dev is removed.
Sorry, but you lost me here.
apt-cache show libjpeg62-dev/stable libjpeg8-dev/stable | grep -e
'^Package:' -e 'Provides:'
Package: libjpeg62-dev
Package: libjpeg8-dev
Provides: libjpeg-dev
So, libjpeg62-dev isn't providing libjpeg-dev in stable – and also not
in testing or unstable.