Reorganisation of the source tree

Most of the other users of the fptools build system have migrated to
Cabal, and with the move to darcs we can now flatten the source tree
without losing history, so here goes.

The main change is that the ghc/ subdir is gone, and most of what it
contained is now at the top level.  The build system now makes no
pretense at being multi-project, it is just the GHC build system.

No doubt this will break many things, and there will be a period of
instability while we fix the dependencies.  A straightforward build
should work, but I haven't yet fixed binary/source distributions.
Changes to the Building Guide will follow, too.

1 files changed, 108 insertions, 0 deletions

diff --git a/compiler/HsVersions.h b/compiler/HsVersions.h
new file mode 100644
index 0000000000..dd80922e0b
--- /dev/null
+++ b/compiler/HsVersions.h
@@ -0,0 +1,108 @@
+#ifndef HSVERSIONS_H
+#define HSVERSIONS_H
+
+#if 0
+
+IMPORTANT!  If you put extra tabs/spaces in these macro definitions,
+you will screw up the layout where they are used in case expressions!
+
+(This is cpp-dependent, of course)
+
+#endif
+
+/* Useful in the headers that we share with the RTS */
+#define COMPILING_GHC 1
+
+/* Pull in all the platform defines for this build (foo_TARGET_ARCH etc.) */
+#include "ghc_boot_platform.h"
+
+/* Pull in the autoconf defines (HAVE_FOO), but don't include
+ * ghcconfig.h, because that will include ghcplatform.h which has the
+ * wrong platform settings for the compiler (it has the platform
+ * settings for the target plat instead). */
+#include "../includes/ghcautoconf.h"
+
+#if __GLASGOW_HASKELL__ >= 504
+
+#define CONCURRENT  Control.Concurrent
+#define EXCEPTION   Control.Exception
+     /* If you want Control.Exception.try, get it as Panic.try, which
+        deals with the shift from 'tryAllIO' to 'try'.  */
+#define DYNAMIC     Data.Dynamic
+#define GLAEXTS     GHC.Exts
+#define DATA_BITS   Data.Bits
+#define DATA_INT    Data.Int
+#define DATA_WORD   Data.Word
+#define UNSAFE_IO   System.IO.Unsafe
+#define TRACE       Debug.Trace
+#define DATA_IOREF  Data.IORef
+#define FIX_IO      System.IO
+#define MONAD_ST    Control.Monad.ST
+#define ST_ARRAY    Data.Array.ST
+
+#else
+
+#define CONCURRENT  Concurrent
+#define EXCEPTION   Exception
+#define DYNAMIC     Dynamic
+#define GLAEXTS     GlaExts
+#define DATA_BITS   Bits
+#define DATA_INT    Int
+#define DATA_WORD   Word
+#define UNSAFE_IO   IOExts
+#define TRACE       IOExts
+#define DATA_IOREF  IOExts
+#define FIX_IO      IOExts
+#define MONAD_ST    ST
+#define ST_ARRAY    ST
+
+#endif
+
+#ifdef __GLASGOW_HASKELL__
+#define GLOBAL_VAR(name,value,ty)  \
+name = Util.global (value) :: IORef (ty); \
+{-# NOINLINE name #-}
+#endif
+
+#if __GLASGOW_HASKELL__ >= 620
+#define UNBOX_FIELD !!
+#else
+#define UNBOX_FIELD !
+#endif
+
+#define COMMA ,
+
+#ifdef DEBUG
+#define ASSERT(e) if (not (e)) then (assertPanic __FILE__ __LINE__) else
+#define ASSERT2(e,msg) if (not (e)) then (assertPprPanic __FILE__ __LINE__ (msg)) else
+#define WARN( e, msg ) (warnPprTrace (e) __FILE__ __LINE__ (msg))
+#define ASSERTM(mbool) do { bool <- mbool; ASSERT(bool) return () }
+#define ASSERTM2(mbool,msg) do { bool <- mbool; ASSERT2(bool,msg) return () }
+#else
+#define ASSERT(e)      if False then error "ASSERT"  else
+#define ASSERT2(e,msg) if False then error "ASSERT2" else
+#define ASSERTM(e)
+#define ASSERTM2(e,msg)
+#define WARN(e,msg)    if False then error "WARN"    else
+#endif
+
+-- This #ifndef lets us switch off the "import FastString"
+-- when compiling FastString itself
+#ifndef COMPILING_FAST_STRING
+-- 
+import qualified FastString as FS 
+#endif
+
+#define SLIT(x)	 (FS.mkLitString# (x#))
+#define FSLIT(x) (FS.mkFastString# (x#))
+
+-- Useful for declaring arguments to be strict
+#define STRICT1(f) f a b c | a `seq` False = undefined
+#define STRICT2(f) f a b | a `seq` b `seq` False = undefined
+#define STRICT3(f) f a b c | a `seq` b `seq` c `seq` False = undefined
+#define STRICT4(f) f a b c d | a `seq` b `seq` c `seq` d `seq` False = undefined
+#define STRICT5(f) f a b c d e | a `seq` b `seq` c `seq` d `seq` e `seq` False = undefined
+#define STRICT6(f) f a b c d e f | a `seq` b `seq` c `seq` d `seq` e `seq` f `seq` False = undefined
+
+#endif /* HsVersions.h */
+