i just don't get it. please, can anybody explaim me how to do that? i tried it the last few days with ghc-6.7.20070807, ghc-6.7.20070809, and ghc-6.7.20070810. it always results in a broken library (without Prelude): # ghc-pkg list /usr/local/lib/ghc-6.7.20070810/package.conf: {ghc-6.7.20070810}, rts-1.0 i did this on my gentoo-i386-box (pretty old, takes 1h for quick build, 3.5h without mk/build.mk): T=20070810 tar xjf ghc-6.7.$T-src.tar.bz2 tar xjf ghc-6.7.$T-src-extralibs.tar.bz2 cd ghc-6.7.$T ( #echo BuildFlavour = quick #cat mk/build.mk.sample echo HADDOCK_DOCS = YES ) > mk/build.mk ./configure && ( time nice -n 19 make all install ) those extralibs seem to be installed in /usr/local/lib/ghc-6.7.20070810/lib/ but registered in ghc-6.7.20070810/driver/package.conf.inplace instead of /usr/local/lib/ghc-6.7.20070810/package.conf . - marc