Hi all, I cannot build 'vector' (or 'cmdargs') with profiling on. specifically when I run: $ cabal install --enable-executable-profiling --enable-library-profiling --ghc-options="-O2 -rtsopts -prof -auto-all -caf-all" vector I get the message: Perhaps you haven't installed the "p_dyn" libraries for package ‛integer-gmp’ https://ghc.haskell.org/trac/ghc/ticket/8677 Per some advice I tried to add the '--disable-shared' $ cabal install --disable-shared --enable-executable-profiling --enable-library-profiling --ghc-options="-O2 -rtsopts -prof -auto-all -caf-all" vector but then I get this: Loading package primitive-0.6 ... <command line>: can't load .so/.DLL for: libHSprimitive-0.6.dylib (dlopen(libHSprimitive-0.6.dylib, 9): image not found) Any idea whats going on or for any work arounds? Pretty stumped! Thanks in advance! Ranjit.