Loading TIF images in Ubuntu

[drhex]

I have some problems loading TIF images using Qt.

Googling gave me this:
http://doc.qt.io/qt-5/qtimageformats-index.html

The actual coding and decoding of the file format is done by a codec library. The codec can be Qt or third party code. In case of a third party codec, the build process will look for it among the system libraries. If not found, it may fall back on using a bundled copy (in src/3rdparty).

On my own machine (Linux Mint 17.1, Qt 5.3.2 compiled from source), the return value of

QImageReader::supportedImageFormats()

QImageReader::supportedImageFormats()

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includes "tif" and "tiff". and consequently such images load fine.

On a friend's machine (Ubuntu 14.04, Qt 5.2.1 that came with the installation), supportedImageFormats() does not include "tif". However,

locate libtiff

locate libtiff

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on the command prompt shows
/usr/lib/x86_64-linux-gnu/libtiff.so.5
/usr/lib/x86_64-linux-gnu/libtiff.so.5.2.0

As per the quote above, I expected Qt to find the codec "among the system libraries". What need to be done to ensure that?