Devs On the branch wip/inline-compulsory, I'm getting a strange link error: simonpj@MSRC-3645512:~/tmp$ ~/code/HEAD-2/inplace/bin/ghc-stage1 Hello.hs [1 of 1] Compiling Main ( Hello.hs, Hello.o ) Linking Hello ... /home/simonpj/code/HEAD-2/rts/dist/build/libHSrts.a(Updates.o):stg_bh_upd_frame_info: error: undefined reference to 'stg_marked_upd_frame_ret' /home/simonpj/code/HEAD-2/rts/dist/build/libHSrts.a(StgMiscClosures.o):stg_CAF_BLACKHOLE_info: error: undefined reference to 'stg_BLACKHOLE_entry' /home/simonpj/code/HEAD-2/rts/dist/build/libHSrts.a(StgMiscClosures.o):__stg_EAGER_BLACKHOLE_info: error: undefined reference to 'stg_BLACKHOLE_entry' /home/simonpj/code/HEAD-2/rts/dist/build/libHSrts.a(Apply.o):stg_AP_STACK_info: error: undefined reference to 'stg_WHITEHOLE_entry' /home/simonpj/code/HEAD-2/rts/dist/build/libHSrts.a(Exception.o):function stg_raisezh: error: undefined reference to 'stg_ap_n_ret' /home/simonpj/code/HEAD-2/rts/dist/build/libHSrts.a(Exception.o):function stg_raisezh: error: undefined reference to 'stg_ap_pv_ret' /home/simonpj/code/HEAD-2/rts/dist/build/libHSrts.a(AutoApply.o):stg_ap_v_info: error: undefined reference to 'stg_BCO_entry' /home/simonpj/code/HEAD-2/rts/dist/build/libHSrts.a(AutoApply.o):stg_ap_f_info: error: undefined reference to 'stg_BCO_entry' /home/simonpj/code/HEAD-2/rts/dist/build/libHSrts.a(AutoApply.o):stg_ap_d_info: error: undefined reference to 'stg_BCO_entry' /home/simonpj/code/HEAD-2/rts/dist/build/libHSrts.a(AutoApply.o):stg_ap_l_info: error: undefined reference to 'stg_BCO_entry' ... etc... But I have done nothing in the RTS! If I try 'nm' I get bash$ nm rts/dist/build/libHSrts.a | grep stg_ap_p_fast U stg_ap_p_fast U stg_ap_p_fast 0000000000003f58 T stg_ap_p_fast So somehow the same symbol is defined and unresolved. Really strange. Can you help? Thanks Simon