Resolving dependencies...
Configuring bytestring-lexing-0.5.0.2...
Configuring colour-2.3.3...
Building bytestring-lexing-0.5.0.2...
Building colour-2.3.3...
Installed bytestring-lexing-0.5.0.2
Configuring data-default-class-0.1.2.0...
Building data-default-class-0.1.2.0...
Configuring hxt-charproperties-9.2.0.1...
Installed colour-2.3.3
Configuring primitive-0.6.2.0...
Installed data-default-class-0.1.2.0
Building hxt-charproperties-9.2.0.1...
Building primitive-0.6.2.0...
Configuring mtl-2.2.1...
Installed hxt-charproperties-9.2.0.1
Building mtl-2.2.1...
Configuring split-0.2.3.1...
Installed primitive-0.6.2.0
Building split-0.2.3.1...
Configuring text-1.2.2.1...
Installed split-0.2.3.1
Building text-1.2.2.1...
Configuring hxt-unicode-9.0.2.4...
Installed mtl-2.2.1
Building hxt-unicode-9.0.2.4...
Installed hxt-unicode-9.0.2.4
Installed text-1.2.2.1
Configuring parsec-3.1.11...
Configuring hashable-1.2.4.0...
Building parsec-3.1.11...
Building hashable-1.2.4.0...
Installed hashable-1.2.4.0
Configuring unordered-containers-0.2.7.1...
Building unordered-containers-0.2.7.1...
Installed parsec-3.1.11
Configuring hxt-regex-xmlschema-9.2.0.3...
Building hxt-regex-xmlschema-9.2.0.3...
Configuring network-uri-2.6.1.0...
Installed hxt-regex-xmlschema-9.2.0.3
Building network-uri-2.6.1.0...
Installed unordered-containers-0.2.7.1
Installed network-uri-2.6.1.0
Configuring hxt-9.3.1.16...
Building hxt-9.3.1.16...
Installed hxt-9.3.1.16
Configuring haskell-igraph-0.1.0...
Failed to install haskell-igraph-0.1.0
Build log ( /home/builder/.cabal/logs/haskell-igraph-0.1.0.log ):
cabal: Entering directory '/tmp/cabal-tmp-31775/haskell-igraph-0.1.0'
Configuring haskell-igraph-0.1.0...
cabal: Missing dependency on a foreign library:
* Missing C library: igraph
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.
cabal: Leaving directory '/tmp/cabal-tmp-31775/haskell-igraph-0.1.0'
cabal: Error: some packages failed to install:
haskell-igraph-0.1.0 failed during the configure step. The exception was:
ExitFailure 1