Use OPTIONS rather than OPTIONS_GHC for pragmas

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

diff --git a/compiler/main/StaticFlags.hs b/compiler/main/StaticFlags.hs
index 9e13360..a843ef9 100644 (file)
--- a/compiler/main/StaticFlags.hs
+++ b/compiler/main/StaticFlags.hs
@@ -9,6 +9,13 @@
 --
 -----------------------------------------------------------------------------
 
+{-# OPTIONS -w #-}
+-- The above warning supression flag is a temporary kludge.
+-- While working on this module you are encouraged to remove it and fix
+-- any warnings in the module. See
+--     http://hackage.haskell.org/trac/ghc/wiki/CodingStyle#Warnings
+-- for details
+
 module StaticFlags (
        parseStaticFlags,
        staticFlags,
@@ -57,6 +64,7 @@ module StaticFlags (
        -- Related to linking
        opt_PIC,
        opt_Static,
+       opt_HardwireLibPaths,
 
        -- misc opts
        opt_IgnoreDotGhci,
@@ -85,7 +93,7 @@ import Data.IORef
 import System.IO.Unsafe        ( unsafePerformIO )
 import Control.Monad   ( when )
 import Data.Char       ( isDigit )
-import Data.List       ( sort, intersperse, nub )
+import Data.List
 
 -----------------------------------------------------------------------------
 -- Static flags
@@ -118,8 +126,14 @@ parseStaticFlags args = do
   let cg_flags | tablesNextToCode = ["-optc-DTABLES_NEXT_TO_CODE"]
               | otherwise        = []
 
+    -- HACK: -fexcess-precision is both a static and a dynamic flag.  If
+    -- the static flag parser has slurped it, we must return it as a 
+    -- leftover too.  ToDo: make -fexcess-precision dynamic only.
+  let excess_prec | opt_SimplExcessPrecision = ["-fexcess-precision"]
+                  | otherwise                = []
+
   when (not (null errs)) $ ghcError (UsageError (unlines errs))
-  return (cg_flags++more_leftover++leftover)
+  return (excess_prec++cg_flags++more_leftover++leftover)
 
 initStaticOpts :: IO ()
 initStaticOpts = writeIORef v_opt_C_ready True
@@ -322,6 +336,7 @@ opt_PIC                         = True
 opt_PIC                         = lookUp FSLIT("-fPIC")
 #endif
 opt_Static                     = lookUp  FSLIT("-static")
+opt_HardwireLibPaths           = lookUp  FSLIT("-fhardwire-lib-paths")
 opt_Unregisterised             = lookUp  FSLIT("-funregisterised")
 
 -- Derived, not a real option.  Determines whether we will be compiling
@@ -362,6 +377,7 @@ isStaticFlag f =
        "fexcess-precision",
        "funfolding-update-in-place",
        "static",
+       "fhardwire-lib-paths",
        "funregisterised",
        "fext-core",
        "fcpr-off",
@@ -369,7 +385,7 @@ isStaticFlag f =
        "fPIC",
        "fhpc"
        ]
-  || any (flip prefixMatch f) [
+  || any (`isPrefixOf` f) [
        "fliberate-case-threshold",
        "fmax-worker-args",
        "fhistory-size",
@@ -403,7 +419,7 @@ decodeSize str
   | c == "G" || c == "g" = truncate (n * 1000 * 1000 * 1000)
   | otherwise            = throwDyn (CmdLineError ("can't decode size: " ++ str))
   where (m, c) = span pred str
-        n      = read m  :: Double
+        n      = readRational m
        pred c = isDigit c || c == '.'