I tried the following command line: cabal install --enable-documentation --extra-include-dirs=/usr;local/include --extra-lib-dirs=/usr/local/lib hmatrix
and got the following: Resolving dependencies... Configuring hmatrix-0.16.0.4... cabal: Missing dependencies on foreign libraries: * Missing C libraries: blas, lapack This problem can usually be solved by installing the system packages that provide these libraries (you may need the "-dev" versions). If the libraries are already installed but in a non-standard location then you can use the flags --extra-include-dirs= and --extra-lib-dirs= to specify where they are. Failed to install hmatrix-0.16.0.4 cabal: Error: some packages failed to install: hmatrix-0.16.0.4 failed during the configure step. The exception was: ExitFailure 1 As I said before, the libraries for blas and lapack ARE in /usr/local/lib and the header files ARE in /usr/local/include. Is it possible for hmatrix to look for another version of atlas/blas and lapack? I have installed atlas-3.3.8 and lapack-3.4.0 Adrian.
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