Hello, interesting but I'm not able to build this on SunOS 5.11/x86. The build fails with: (echo dist/build/cbits/PrelIOUtils.p_o dist/build/cbits/WCsubst.p_o dist/build/cbits/Win32Utils.p_o dist/build/cbits/consUtils.p_o dist/build/cbits/dirUtils.p_o dist/build/cbits/inputReady.p_o dist/build/cbits/selectUtils.p_o `find dist/build -name "*_stub.p_o" -print`; find dist/build/Foreign/Concurrent_split dist/build/GHC/Arr_split dist/build/GHC/Base_split dist/build/GHC/Classes_split dist/build/GHC/Conc_split dist/build/GHC/ConsoleHandler_split dist/build/GHC/Desugar_split dist/build/GHC/Enum_split dist/build/GHC/Environment_split dist/build/GHC/Err_split dist/build/GHC/Exception_split dist/build/GHC/Exts_split dist/build/GHC/Float_split dist/build/GHC/ForeignPtr_split dist/build/GHC/Handle_split dist/build/GHC/IO_split dist/build/GHC/IOBase_split dist/build/GHC/Int_split dist/build/GHC/List_split dist/build/GHC/Num_split dist/build/GHC/PArr_split dist/build/GHC/Pack_split dist/build/GHC/Ptr_split dist/build/GHC/Read_split dist/build/GHC/Real_split dist/build/GHC/ST_split dist/build/GHC/STRef_split dist/build/GHC/Show_split dist/build/GHC/Stable_split dist/build/GHC/Storable_split dist/build/GHC/TopHandler_split dist/build/GHC/Unicode_split dist/build/GHC/Weak_split dist/build/GHC/Word_split dist/build/System/Timeout_split dist/build/Control/Applicative_split dist/build/Control/Arrow_split dist/build/Control/Category_split dist/build/Control/Concurrent_split dist/build/Control/Concurrent/Chan_split dist/build/Control/Concurrent/MVar_split dist/build/Control/Concurrent/QSem_split dist/build/Control/Concurrent/QSemN_split dist/build/Control/Concurrent/SampleVar_split dist/build/Control/Exception_split dist/build/Control/Exception/Base_split dist/build/Control/OldException_split dist/build/Control/Monad_split dist/build/Control/Monad/Fix_split dist/build/Control/Monad/Instances_split dist/build/Control/Monad/ST_split dist/build/Control/Monad/ST/Lazy_split dist/build/Control/Monad/ST/Strict_split dist/build/Data/Bits_split dist/build/Data/Bool_split dist/build/Data/Char_split dist/build/Data/Complex_split dist/build/Data/Dynamic_split dist/build/Data/Either_split dist/build/Data/Eq_split dist/build/Data/Data_split dist/build/Data/Fixed_split dist/build/Data/Foldable_split dist/build/Data/Function_split dist/build/Data/HashTable_split dist/build/Data/IORef_split dist/build/Data/Int_split dist/build/Data/Ix_split dist/build/Data/List_split dist/build/Data/Maybe_split dist/build/Data/Monoid_split dist/build/Data/Ord_split dist/build/Data/Ratio_split dist/build/Data/STRef_split dist/build/Data/STRef/Lazy_split dist/build/Data/STRef/Strict_split dist/build/Data/String_split dist/build/Data/Traversable_split dist/build/Data/Tuple_split dist/build/Data/Typeable_split dist/build/Data/Unique_split dist/build/Data/Version_split dist/build/Data/Word_split dist/build/Debug/Trace_split dist/build/Foreign_split dist/build/Foreign/C_split dist/build/Foreign/C/Error_split dist/build/Foreign/C/String_split dist/build/Foreign/C/Types_split dist/build/Foreign/ForeignPtr_split dist/build/Foreign/Marshal_split dist/build/Foreign/Marshal/Alloc_split dist/build/Foreign/Marshal/Array_split dist/build/Foreign/Marshal/Error_split dist/build/Foreign/Marshal/Pool_split dist/build/Foreign/Marshal/Utils_split dist/build/Foreign/Ptr_split dist/build/Foreign/StablePtr_split dist/build/Foreign/Storable_split dist/build/Numeric_split dist/build/Prelude_split dist/build/System/Console/GetOpt_split dist/build/System/CPUTime_split dist/build/System/Environment_split dist/build/System/Exit_split dist/build/System/IO_split dist/build/System/IO/Error_split dist/build/System/IO/Unsafe_split dist/build/System/Info_split dist/build/System/Mem_split dist/build/System/Mem/StableName_split dist/build/System/Mem/Weak_split dist/build/System/Posix/Internals_split dist/build/System/Posix/Types_split dist/build/Text/ParserCombinators/ReadP_split dist/build/Text/ParserCombinators/ReadPrec_split dist/build/Text/Printf_split dist/build/Text/Read_split dist/build/Text/Read/Lex_split dist/build/Text/Show_split dist/build/Text/Show/Functions_split dist/build/Unsafe/Coerce_split -name '*.p_o' -print) | xargs /usr/bin/ar q dist/build/libHSbase-4.1.0.0_p.a ar: creating dist/build/libHSbase-4.1.0.0_p.a internal error: error_message(58) gmake[3]: *** [dist/build/libHSbase-4.1.0.0_p.a] Error 100 gmake[2]: *** [all] Error 1 gmake[2]: Leaving directory `/var/tmp/ghc-6.10.1.20090314/libraries/base' gmake[1]: *** [make.library.base] Error 2 gmake[1]: Leaving directory `/var/tmp/ghc-6.10.1.20090314/libraries' gmake: *** [stage1] Error 2 I've configure with simple: ./configure --prefix=/tmp/ghc-6.10.1.20090314 and build with: gmake The interesting thing is that GHC stable builds on my buildbot well: http://darcs.haskell.org/buildbot/all/builders/kgardas%20stable Any idea what I'm doing wrong? Thanks, Karel