Resolving dependencies... Configuring regex-base-0.93.2... Building regex-base-0.93.2... Preprocessing library regex-base-0.93.2... [1 of 4] Compiling Text.Regex.Base.RegexLike ( Text/Regex/Base/RegexLike.hs, dist/build/Text/Regex/Base/RegexLike.o ) [2 of 4] Compiling Text.Regex.Base.Context ( Text/Regex/Base/Context.hs, dist/build/Text/Regex/Base/Context.o ) [3 of 4] Compiling Text.Regex.Base ( Text/Regex/Base.hs, dist/build/Text/Regex/Base.o ) [4 of 4] Compiling Text.Regex.Base.Impl ( Text/Regex/Base/Impl.hs, dist/build/Text/Regex/Base/Impl.o ) In-place registering regex-base-0.93.2... Running Haddock for regex-base-0.93.2... Running hscolour for regex-base-0.93.2... Preprocessing library regex-base-0.93.2... Preprocessing library regex-base-0.93.2... Warning: The documentation for the following packages are not installed. No links will be generated to these packages: rts-1.0, mtl-2.1.2, transformers-0.3.0.0 Haddock coverage: 94% ( 17 / 18) in 'Text.Regex.Base.RegexLike' 100% ( 1 / 1) in 'Text.Regex.Base.Context' 75% ( 3 / 4) in 'Text.Regex.Base' 33% ( 1 / 3) in 'Text.Regex.Base.Impl' Documentation created: dist/doc/html/regex-base/index.html Installing library in /srv/hackage/var/build/tmp-install/lib/regex-base-0.93.2/ghc-7.6.3 Registering regex-base-0.93.2... Installed regex-base-0.93.2 Configuring regex-pcre-0.94.4... cabal: Missing dependency on a foreign library: * Missing C library: pcre 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. Failed to install regex-pcre-0.94.4 cabal: Error: some packages failed to install: regex-pcre-0.94.4 failed during the configure step. The exception was: ExitFailure 1 verbalexpressions-1.0.0.0 depends on regex-pcre-0.94.4 which failed to install.