`make install` on Debian Jessie doesn't result in a working installation

[aboyett]

I tried creating a docker image for squash based on Debian Jessie. The Dockerfile I used is as follows:

FROM debian:jessie

RUN apt-get update && apt-get install -y build-essential cmake ragel

COPY . /src

RUN cd /src && ./configure && make all test install

# hack to deal with squash: error while loading shared libraries: libsquash0.8.so.0.8.0: cannot open shared object file: No such file or directory
#RUN ln -s /usr/local/lib/libsquash0.8.so.0.8.0 /usr/lib/

I then executed this in a clean git checkout (commit 04c9b77) with initialized submodules by running docker build -t aboyett/squash . The tests completed successfully and installation appears to have succeeded, but the installed squash binary cannot find libsquash.so

$ docker run aboyett/squash squash --help
squash: error while loading shared libraries: libsquash0.8.so.0.8.0: cannot open shared object file: No such file or directory

If I run ln -s /usr/local/lib/libsquash0.8.so.0.8.0 /usr/lib/ (commented final line of the Dockerfile,) I then am able to execute squash successfully:

$ docker run aboyett/squash squash --help
Usage: squash [OPTION]... INPUT [OUTPUT]
Compress and decompress files.

Options:
        -k, --keep              Keep input file when finished.
        -o, --option key=value  Pass the option to the encoder/decoder.
        -1 .. -9                Pass the compression level to the encoder.
                                Equivalent to -o level=N
        -c, --codec codec       Use the specified codec.  By default squash will
                                attempt to guess it based on the extension.
        -L, --list-codecs       List available codecs and exit
        -P, --list-plugins      List available plugins and exit
        -f, --force             Overwrite the output file if it exists.
        -d, --decompress        Decompress
        -V, --version           Print version number and exit
        -h, --help              Print this help screen and exit.

I would expect make install to yield a working installation without the need to symlink the shared lib. Please let me know if this issue is due to operator error :smile:

[nemequ]

It's a pretty common issue on Debian (and Debian-based distros like Ubuntu). You need to run ldconfig. This isn't just a Squash thing; it's true for every shared library you install to /usr/local.

[aboyett]

Ah, of course, running ldconfig fixed it right up. I've gotten to used to build systems and package managers handling that for me and forgot cmake doesn't do it.