Extend the flag for not automatically linking haskell98

It now also doesn't automatically link base and rts either.
We need this when we've done a build, so base and rts are in the
package.conf, but we've then cleaned the libraries so they don't
physically exist any more.

compiler/main/DynFlags.hs

@@ -275,7 +275,7 @@ data DynFlag
    | Opt_EmbedManifest
    | Opt_RunCPSZ
    | Opt_ConvertToZipCfgAndBack
-   | Opt_LinkHaskell98
+   | Opt_AutoLinkPackages
 
    -- keeping stuff
    | Opt_KeepHiDiffs
@@ -569,7 +569,7 @@ defaultDynFlags =
         -- end of initSysTools values
         haddockOptions = Nothing,
         flags = [
-            Opt_LinkHaskell98,
+            Opt_AutoLinkPackages,
             Opt_ReadUserPackageConf,
 
             Opt_MonoPatBinds,   -- Experimentally, I'm making this non-standard
@@ -1107,7 +1107,7 @@ dynamic_flags = [
   , Flag "keep-tmp-files"   (NoArg (setDynFlag Opt_KeepTmpFiles)) Supported
 
         ------- Miscellaneous ----------------------------------------------
-  , Flag "no-link-haskell98" (NoArg (unSetDynFlag Opt_LinkHaskell98)) Supported
+  , Flag "no-auto-link-packages" (NoArg (unSetDynFlag Opt_AutoLinkPackages)) Supported
   , Flag "no-hs-main"     (NoArg (setDynFlag Opt_NoHsMain)) Supported
   , Flag "main-is"        (SepArg setMainIs ) Supported
   , Flag "haddock"        (NoArg (setDynFlag Opt_Haddock)) Supported

compiler/main/Packages.lhs

@@ -548,8 +548,10 @@ mkPackageState dflags orig_pkg_db preload0 this_package = do
   let pkg_db = extendPackageConfigMap emptyPackageConfigMap pkgs
 
       -- add base & rts to the preload packages
-      basicLinkedPackages = filter (flip elemUFM pkg_db)
-				 [basePackageId,rtsPackageId]
+      basicLinkedPackages
+       | dopt Opt_AutoLinkPackages dflags
+          = filter (flip elemUFM pkg_db) [basePackageId, rtsPackageId]
+       | otherwise = []
       -- but in any case remove the current package from the set of
       -- preloaded packages so that base/rts does not end up in the
       -- set up preloaded package when we are just building it

mk/config.mk.in

@@ -967,7 +967,7 @@ SRC_HSC2HS_OPTS += $(addprefix --cflag=,$(filter-out -O,$(SRC_CC_OPTS)))
 SRC_HSC2HS_OPTS += --cc=$(CC)
 SRC_HSC2HS_OPTS += --ld=$(CC)
 SRC_HSC2HS_OPTS += --cflag=-D__GLASGOW_HASKELL__=$(ProjectVersionInt)
-SRC_HSC2HS_OPTS += --lflag=-no-link-haskell98
+SRC_HSC2HS_OPTS += --lflag=-no-auto-link-packages
 SRC_HSC2HS_OPTS += -I$(GHC_INCLUDE_DIR_ABS)
 SRC_HSC2HS_OPTS += -I$(FPTOOLS_TOP_ABS)/gmp/gmpbuild