X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Fmain%2FStaticFlagParser.hs;h=5e38af5e253e9e6151ab3637f43fab338954d710;hb=c0ac8b6b2192d296fc28bfc8eb566123e8d72bf0;hp=aaab558c69b20a8e2d1662a3e611fa74f8e4b146;hpb=fc9bbbab3fe56cf0ff5723abbdb0f496d257f34e;p=ghc-hetmet.git

diff --git a/compiler/main/StaticFlagParser.hs b/compiler/main/StaticFlagParser.hs
index aaab558..5e38af5 100644
--- a/compiler/main/StaticFlagParser.hs
+++ b/compiler/main/StaticFlagParser.hs
@@ -28,6 +28,21 @@ import Data.List
 -----------------------------------------------------------------------------
 -- Static flags
 
+-- | Parses GHC's static flags from a list of command line arguments.
+--
+-- These flags are static in the sense that they can be set only once and they
+-- are global, meaning that they affect every instance of GHC running;
+-- multiple GHC threads will use the same flags.
+--
+-- This function must be called before any session is started, i.e., before
+-- the first call to 'GHC.withGhc'.
+--
+-- Static flags are more of a hack and are static for more or less historical
+-- reasons.  In the long run, most static flags should eventually become
+-- dynamic flags.
+--
+-- XXX: can we add an auto-generated list of static flags here?
+--
 parseStaticFlags :: [Located String] -> IO ([Located String], [Located String])
 parseStaticFlags args = do
   ready <- readIORef v_opt_C_ready
@@ -161,7 +176,6 @@ isStaticFlag f =
     "fgransim",
     "fno-hi-version-check",
     "dno-black-holing",
-    "fno-method-sharing",
     "fno-state-hack",
     "fno-ds-multi-tyvar",
     "fruntime-types",