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, 35 insertions, 0 deletions

diff --git a/includes/ieee-flpt.h b/includes/ieee-flpt.h
new file mode 100644
index 0000000000..a1fce3a8da
--- /dev/null
+++ b/includes/ieee-flpt.h
@@ -0,0 +1,35 @@
+/* this file is #included into both C (.c and .hc) and Haskell files */
+
+    /* IEEE format floating-point */
+#define IEEE_FLOATING_POINT 1
+
+   /* Radix of exponent representation */
+#ifndef FLT_RADIX
+# define FLT_RADIX 2
+#endif
+
+   /* Number of base-FLT_RADIX digits in the significand of a float */
+#ifndef FLT_MANT_DIG
+# define FLT_MANT_DIG 24
+#endif
+   /* Minimum int x such that FLT_RADIX**(x-1) is a normalised float */
+#ifndef FLT_MIN_EXP
+#  define FLT_MIN_EXP (-125)
+#endif
+   /* Maximum int x such that FLT_RADIX**(x-1) is a representable float */
+#ifndef FLT_MAX_EXP
+# define FLT_MAX_EXP 128
+#endif
+
+   /* Number of base-FLT_RADIX digits in the significand of a double */
+#ifndef DBL_MANT_DIG
+# define DBL_MANT_DIG 53
+#endif
+   /* Minimum int x such that FLT_RADIX**(x-1) is a normalised double */
+#ifndef DBL_MIN_EXP
+#  define DBL_MIN_EXP (-1021)
+#endif
+   /* Maximum int x such that FLT_RADIX**(x-1) is a representable double */
+#ifndef DBL_MAX_EXP
+# define DBL_MAX_EXP 1024
+#endif