Am Samstag, 19. Mai 2012, 14:42:49 schrieb Paul Anton Letnes: > Hi all. > > I am currently trying to create a more tidy CMakeLists.txt script for > a simulation code I'm working on. The target platforms are mac and > linux desktops (for development) and HPC [0] servers (all linux or, in > some hypothetical future, unix systems). For the desktop/laptop case, > it's mostly easy enough, as one installs libraries in a standard > location - /opt, /usr/local, or something of that sort. On HPC > servers, it is very common to install software in "modules". I am not > sure how well aquainted the CMake crowd is with the module system [1] > so I'll post a brief explanation. > > HPC servers often have a large amount of users with varying > requirements. Therefore, it is common to require, say, two different > versions of a library, or the same library for two different > compilers. As an example, a machine I'm currently using has several > modules for the FFTW library. Example:
[...] > So why am i ranting on about this? Well, basically > find_package(FFTW3) does not find the fftw library, This module is not part of CMake, so you should complain somewhere else. > and other libraries I'm using (hdf5, > mkl, ...) share the same fate. Previously I've just hand-added all > sorts of include_directories and link_directories but I'm getting fed link_directories() is surely not the solution you need. In fact, it usually creates only more problems. But to have some useful information: set CMAKE_PREFIX_PATH to the path where the libraries can be found without the lib/ or include/ suffix, CMake will add them itself. So if you have fftw2 in /opt/fftw2/lib/libfftw2.a and fftw3 in /opt/fftw-3/lib/libfftw3.so just call: cmake -D CMAKE_PREFIX_PATH=/opt/fftw2 ... Then CMake should pick up that library and all should be well. Eike
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