Undefine __PIC__ before defining it to work around "multiple definitions of __PIC__...

[ghc-hetmet.git] / compiler / main / DynFlags.hs

diff --git a/compiler/main/DynFlags.hs b/compiler/main/DynFlags.hs
index 5a1981d..1ee8d73 100644 (file)
--- a/compiler/main/DynFlags.hs
+++ b/compiler/main/DynFlags.hs
@@ -261,6 +261,7 @@ data DynFlag
    | Opt_UnboxStrictFields
    | Opt_MethodSharing
    | Opt_DictsCheap
+   | Opt_InlineIfEnoughArgs
    | Opt_EnableRewriteRules            -- Apply rewrite rules during simplification
    | Opt_Vectorise
    | Opt_RegsGraph                      -- do graph coloring register allocation
@@ -565,7 +566,7 @@ defaultDynFlags =
 
         opt_L                   = [],
         opt_P                   = (if opt_PIC
-                                   then ["-D__PIC__"]
+                                   then ["-D__PIC__", "-U __PIC__"] -- this list is reversed
                                    else []),
         opt_F                   = [],
         opt_c                   = [],
@@ -710,7 +711,7 @@ parseDynLibLoaderMode f d =
    ("wrapped", "")      -> d{ dynLibLoader = Wrapped Nothing }
    ("wrapped:", "hard") -> d{ dynLibLoader = Wrapped Nothing }
    ("wrapped:", flex)   -> d{ dynLibLoader = Wrapped (Just flex) }
-   (_,_)                -> error "Unknown dynlib loader"
+   _                    -> ghcError (CmdLineError ("Unknown dynlib loader: " ++ f))
 
 setDumpPrefixForce f d = d { dumpPrefixForce = f}
 
@@ -1545,6 +1546,7 @@ fFlags = [
   ( "unbox-strict-fields",              Opt_UnboxStrictFields, const Supported ),
   ( "method-sharing",                   Opt_MethodSharing, const Supported ),
   ( "dicts-cheap",                      Opt_DictsCheap, const Supported ),
+  ( "inline-if-enough-args",            Opt_InlineIfEnoughArgs, const Supported ),
   ( "excess-precision",                 Opt_ExcessPrecision, const Supported ),
   ( "asm-mangling",                     Opt_DoAsmMangling, const Supported ),
   ( "print-bind-result",                Opt_PrintBindResult, const Supported ),
@@ -1908,6 +1910,7 @@ setOptLevel n dflags
 --    -fmax-simplifier-iterations20     this is necessary sometimes
 --    -fno-spec-constr-threshold        run SpecConstr even for big loops
 --    -fno-spec-constr-count            SpecConstr as much as possible
+--    -finline-enough-args              hack to prevent excessive inlining
 --
 setDPHOpt :: DynFlags -> DynFlags
 setDPHOpt dflags = setOptLevel 2 (dflags { maxSimplIterations  = 20
@@ -1916,6 +1919,7 @@ setDPHOpt dflags = setOptLevel 2 (dflags { maxSimplIterations  = 20
                                          })
                    `dopt_set`   Opt_DictsCheap
                    `dopt_unset` Opt_MethodSharing
+                   `dopt_set`   Opt_InlineIfEnoughArgs
 
 data DPHBackend = DPHPar
                 | DPHSeq
@@ -2158,18 +2162,18 @@ picCCOpts _dflags
       --     in dynamic libraries.
 
     | opt_PIC
-        = ["-fno-common", "-D__PIC__"]
+        = ["-fno-common", "-U __PIC__","-D__PIC__"]
     | otherwise
         = ["-mdynamic-no-pic"]
 #elif mingw32_TARGET_OS
       -- no -fPIC for Windows
     | opt_PIC
-        = ["-D__PIC__"]
+        = ["-U __PIC__","-D__PIC__"]
     | otherwise
         = []
 #else
     | opt_PIC
-        = ["-fPIC", "-D__PIC__"]
+        = ["-fPIC", "-U __PIC__", "-D__PIC__"]
     | otherwise
         = []
 #endif