use -fforce-recomp when compiling Main.hs against the ghc package.

This is necessary because GHC's recompilation checker doesn't check
across package boundaries.

diff --git a/compiler/Makefile.ghcbin b/compiler/Makefile.ghcbin
index 0f91a53..25a8a58 100644 (file)
--- a/compiler/Makefile.ghcbin
+++ b/compiler/Makefile.ghcbin
@@ -46,5 +46,8 @@ odir=stage$(stage)
 HS_SRCS = main/Main.hs
 HS_OBJS = $(patsubst %, $(odir)/%, $(addsuffix .$(way_)o,$(basename $(HS_SRCS))))
 $(odir)/main/Main.o : libHSghc$(_way).a
+SRC_HC_OPTS += -fforce-recomp
+# can't rely on GHC's recompilation checking here, because it won't spot 
+# changes in the ghc package.
 
 include $(TOP)/mk/target.mk