I have some problems installing 6.8.1 on Mac OS X Leopard. First I installed readline using ports: $ sudo port install readline <snip> Then GHC $ ./configure --prefix=$HOME && make install make -C rts install DOING_BIN_DIST=YES cc -E -undef -traditional -P -DINSTALLING \ -DIMPORT_DIR='"/Users/tibell/lib/ghc-6.8.1/imports"' \ -DLIB_DIR='"/Users/tibell/lib/ghc-6.8.1"' \ -DINCLUDE_DIR='"/Users/tibell/lib/ghc-6.8.1/include"' \ -DDATA_DIR='"/Users/tibell/share/ghc-6.8.1"' \ -DHTML_DIR='"/Users/tibell/share/ghc-6.8.1/html/libraries/rts"' \ -DHADDOCK_IFACE='"/Users/tibell/share/ghc-6.8.1/html/libraries/rts/rts.haddock"' \ -I../includes \ -x c -DGMP_INCLUDE_DIRS='' -DGMP_LIB_DIRS='' -I -Iinclude -DPACKAGE=rts -DVERSION= -DPKG_LIBDIR='"/Users/tibell/lib/ghc-6.8.1"' -DPKG_DATADIR='"/Users/tibell/share/ghc-6.8.1"' package.conf.in \ | grep -v '^#pragma GCC' \ | sed -e 's/""//g' -e 's/:[ ]*,/: /g' \ | /Users/tibell/Downloads/ghc-6.8.1/utils/ghc-pkg/ghc-pkg.bin --global-conf /Users/tibell/lib/ghc-6.8.1/package.conf update - --force dyld: Library not loaded: /opt/local/lib/libgmp.3.dylib Referenced from: /Users/tibell/Downloads/ghc-6.8.1/utils/ghc-pkg/ghc-pkg.bin Reason: image not found /bin/sh: line 1: 60782 Done cc -E -undef -traditional -P -DINSTALLING -DIMPORT_DIR='"/Users/tibell/lib/ghc-6.8.1/imports"' -DLIB_DIR='"/Users/tibell/lib/ghc-6.8.1"' -DINCLUDE_DIR='"/Users/tibell/lib/ghc-6.8.1/include"' -DDATA_DIR='"/Users/tibell/share/ghc-6.8.1"' -DHTML_DIR='"/Users/tibell/share/ghc-6.8.1/html/libraries/rts"' -DHADDOCK_IFACE='"/Users/tibell/share/ghc-6.8.1/html/libraries/rts/rts.haddock"' -I../includes -x c -DGMP_INCLUDE_DIRS='' -DGMP_LIB_DIRS='' -I -Iinclude -DPACKAGE=rts -DVERSION= -DPKG_LIBDIR='"/Users/tibell/lib/ghc-6.8.1"' -DPKG_DATADIR='"/Users/tibell/share/ghc-6.8.1"' package.conf.in 60783 | grep -v '^#pragma GCC' 60784 | sed -e 's/""//g' -e 's/:[ ]*,/: /g' 60786 Trace/BPT trap | /Users/tibell/Downloads/ghc-6.8.1/utils/ghc-pkg/ghc-pkg.bin --global-conf /Users/tibell/lib/ghc-6.8.1/package.conf update - --force make[1]: *** [install] Error 133 make: *** [install] Error 2 ------------------- I thought GHC shipped with its own GMP lib. -- Johan