Hi, On a completely clean clone, I've checked out the tag ghc-7.8.3-release, ran sync-all get, boot, and configure, but the build fails on haskell98. Any ideas what I could be doing wrong? Thanks, Gergo "inplace/bin/ghc-cabal" check libraries/haskell98 "inplace/bin/ghc-cabal" configure libraries/haskell98 dist-install "" --with-ghc="/home/cactus/prog/haskell/ghc/ghc-7.8-build/inplace/bin/ghc-stage1" --with-ghc-pkg="/home/cactus/prog/haskell/ghc/ghc-7.8-build/inplace/bin/ghc-pkg" --disable-library-for-ghci --enable-library-vanilla --disable-library-profiling --enable-shared --with-hscolour="/home/cactus/.cabal/bin/HsColour" --configure-option=CFLAGS=" -fno-stack-protector " --configure-option=LDFLAGS=" " --configure-option=CPPFLAGS=" " --gcc-options=" -fno-stack-protector " --with-gcc="/usr/bin/gcc" --with-ld="/usr/bin/ld" --configure-option=--with-cc="/usr/bin/gcc" --with-ar="/usr/bin/ar" --with-ranlib="/usr/bin/ranlib" --with-alex="/home/cactus/.cabal/bin/alex" --with-happy="/home/cactus/.cabal/bin/happy" Configuring haskell98-2.0.0.4... ghc-cabal: At least the following dependencies are missing: base ==4.8.* make[1]: *** [libraries/haskell98/dist-install/package-data.mk] Error 1