Hello GHC users, I've attempted to build an installation of GHC which uses unregisterised libraries, but have not had much success. I am new to GHC's build system and would be grateful for some advice. I'm trying to build the 6.4.2 source distribution on an x86 linux machine, using GHC 6.4.2 (the "Generic Linux with glibc2.3" version on the download page.) The target is the same machine. I've created a mk/build.mk file containing just the line: GhcUnregisterised = YES which, according to the comment in mk/config.mk, ought to build the unregisterised libraries that I'm after (and use them by default.) I run configure as follows: ./configure --prefix="$HOME"/ghc_u and then simply "make". After some time, the build fails with the following: ------------------------------------------------------------------------ ==fptools== make all -wr; in /mnt/raid/home/jeremyrw/src/src/ghc-6.4.2/libraries/base ------------------------------------------------------------------------ ../../ghc/compiler/ghc-inplace -H16m -O -fglasgow-exts -cpp -Iinclude -"#include" HsBase.h -funbox-strict-fields -ignore-package base -O -Rghc-timing -fgenerics -fgenerics -split-objs -c GHC/Err.lhs-boot -o GHC/Err.o-boot -ohi GHC/Err. hi-boot <> rm -f GHC/Base.o; if [ ! -d GHC/Base_split ]; then mkdir GHC/Base_split; else /usr/bin/find GHC/Base_split -name '*.o' -print | xargs rm -f __rm_food; fi; ../../ghc/compiler/ghc-inplace -H16m -O -fglasgow-exts -cpp -Iinclude -"#include" HsBase.h -funbox-strict-fields -ignore-package base -O Rghc-timing -fgenerics -fgenerics -split-objs -c GHC/Base.lhs -o GHC/Base.o -ohi GHC/Base.hi /tmp/ghc4237.s: Assembler messages: /tmp/ghc4237.s:17: Error: symbol `__stg_split_marker' is already defined /tmp/ghc4237.s:29: Error: symbol `__stg_split_marker' is already defined /tmp/ghc4237.s:41: Error: symbol `__stg_split_marker' is already defined /tmp/ghc4237.s:53: Error: symbol `__stg_split_marker' is already defined .... This goes on for a while ... /tmp/ghc4237.s:16568: Error: symbol `__stg_split_marker' is already defined /tmp/ghc4237.s:16614: Error: symbol `__stg_split_marker' is already defined /tmp/ghc4237.s:16660: Error: symbol `__stg_split_marker' is already defined /tmp/ghc4237.s:16706: Error: symbol `__stg_split_marker' is already defined <> make[2]: *** [GHC/Base.o] Error 1 make[1]: *** [all] Error 1 make[1]: Leaving directory `/mnt/raid/home/jeremyrw/src/src/ghc-6.4.2/libraries' make: *** [build] Error 1 I've also tried with the following build.mk (I was guessing the -fvia-C might avoid the above assembler problem.): GhcUnregisterised = YES GhcLibHcOpts = -O -fvia-C but it fails in the same way. I'm not sure what to do at this point. Am I missing something in the build.mk? My ultimate goal is to link a Haskell object, which exports one of its functions via the FFI, with some other objects, into a single shared object. To do this I will need to compile everything with gcc's -fPIC flag, hence the need for unregisterised libraries. To go that extra step (to get relocatable GHC libraries), I'm guessing that I'll need to extend the GhcLibHcOpts line in build.mk with: -optc -fPIC. Will I need to do that for the run-time system as well? i.e. adding a line like: GhcRtsHcOpts = -fvia-C -optc '-fPIC' Is there likely to be anything else that needs to be tweaked? Has anybody had any success with this sort of thing before? Regards, Jeremy ____________________________________________________ On Yahoo!7 Answers: 25 million answers and counting. Learn something new today http://www.yahoo7.com.au/answers