Resolving dependencies... Downloading hslibsvm-2.89.0.1... Configuring hslibsvm-2.89.0.1... cabal: Missing dependency on a foreign library: * Missing (or bad) header file: svm.h This problem can usually be solved by installing the system package that provides this library (you may need the "-dev" version). If the library is already installed but in a non-standard location then you can use the flags --extra-include-dirs= and --extra-lib-dirs= to specify where it is. If the header file does exist, it may contain errors that are caught by the C compiler at the preprocessing stage. In this case you can re-run configure with the verbosity flag -v3 to see the error messages. Failed to install hslibsvm-2.89.0.1 cabal: Error: some packages failed to install: hslibsvm-2.89.0.1 failed during the configure step. The exception was: ExitFailure 1