Dear Cabal-ers I have downloaded a binary installation of GHC 7.8.2, for Linux. Now I want to install regex-compat. First I had to deal with the http_proxy problem, in my last email. But now I get this: cabal install regex-compat Resolving dependencies... Downloading regex-posix-0.95.2... Configuring regex-posix-0.95.2... Building regex-posix-0.95.2... Preprocessing library regex-posix-0.95.2... [1 of 6] Compiling Text.Regex.Posix.Wrap ( dist/build/Text/Regex/Posix/Wrap.hs, dist/build/Text/Regex/Posix/Wrap.o ) [2 of 6] Compiling Text.Regex.Posix.String ( Text/Regex/Posix/String.hs, dist/build/Text/Regex/Posix/String.o ) [3 of 6] Compiling Text.Regex.Posix.Sequence ( Text/Regex/Posix/Sequence.hs, dist/build/Text/Regex/Posix/Sequence.o ) [4 of 6] Compiling Text.Regex.Posix.ByteString ( Text/Regex/Posix/ByteString.hs, dist/build/Text/Regex/Posix/ByteString.o ) [5 of 6] Compiling Text.Regex.Posix.ByteString.Lazy ( Text/Regex/Posix/ByteString/Lazy.hs, dist/build/Text/Regex/Posix/ByteString/Lazy.o ) [6 of 6] Compiling Text.Regex.Posix ( Text/Regex/Posix.hs, dist/build/Text/Regex/Posix.o ) /usr/bin/ld: cannot find -lHSregex-base-0.93.2-ghc7.8.2 /usr/bin/ld: cannot find -lHSmtl-2.1.2-ghc7.8.2 collect2: ld returned 1 exit status Failed to install regex-posix-0.95.2 cabal: Error: some packages failed to install: regex-compat-0.95.1 depends on regex-posix-0.95.2 which failed to install. regex-posix-0.95.2 failed during the building phase. The exception was: ExitFailure 1 simonpj@cam-05-unx:~/code/HEAD-1$ cabal install regex-base Resolving dependencies... All the requested packages are already installed: regex-base-0.93.2 Use --reinstall if you want to reinstall anyway. simonpj@cam-05-unx:~/code/HEAD-1$ So regex-base is already installed, but cabal isn't using it for regex-posix; nor is it installing regex-base-0.93.2. This seems to break the user's-eye view of the Cabal claim that it'll download and install the dependencies. Any thoughts? Simon