Initial import

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diff --git a/build.mk b/build.mk
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+# -----------------------------------------------------------------------------
+# A Sample build.mk
+#
+# Uncomment one of the following BuildFlavour settings to get the desired
+# overall build type, and then tweak the options in the relevant section
+# below.
+
+# Uncomment one of these to select a build profile below:
+
+# Full build with max optimisation and everything enabled (very slow build)
+BuildFlavour = perf
+
+# As above but build GHC using the LLVM backend
+#BuildFlavour = perf-llvm
+
+# Fast build with optimised libraries, no profiling (RECOMMENDED):
+#BuildFlavour = quick
+
+# Even faster build.  NOT RECOMMENDED: the libraries will be
+# completely unoptimised, so any code built with this compiler
+# (including stage2) will run very slowly:
+#BuildFlavour = quickest
+
+# Profile the stage2 compiler:
+#BuildFlavour = prof
+
+# A development build, working on the stage 1 compiler:
+#BuildFlavour = devel1
+
+# A development build, working on the stage 2 compiler:
+#BuildFlavour = devel2
+
+# An unregisterised, optimised build of ghc, for porting:
+#BuildFlavour = unreg
+
+GhcLibWays = v
+
+# -------- 1. A Performance/Distribution build--------------------------------
+
+ifeq "$(BuildFlavour)" "perf"
+
+# perf matches the default settings, repeated here for comparison:
+
+SRC_HC_OPTS     = -O -H64m
+GhcStage1HcOpts = -O -fasm
+GhcStage2HcOpts = -O2 -fasm
+GhcHcOpts       = -Rghc-timing
+GhcLibHcOpts    = -O2
+GhcLibWays     += p
+
+ifeq "$(PlatformSupportsSharedLibs)" "YES"
+GhcLibWays += dyn
+endif
+
+endif
+
+# ---------------- Perf build using LLVM -------------------------------------
+
+ifeq "$(BuildFlavour)" "perf-llvm"
+
+SRC_HC_OPTS     = -O -H64m -fllvm
+GhcStage1HcOpts = -O -fllvm
+GhcStage2HcOpts = -O2 -fllvm
+GhcHcOpts       = -Rghc-timing
+GhcLibHcOpts    = -O2
+GhcLibWays     += p
+
+ifeq "$(PlatformSupportsSharedLibs)" "YES"
+GhcLibWays += dyn
+endif
+
+endif
+
+# -------- A Fast build ------------------------------------------------------
+
+ifeq "$(BuildFlavour)" "quickest"
+
+SRC_HC_OPTS        = -H64m -O0 -fasm
+GhcStage1HcOpts    = -O -fasm
+GhcStage2HcOpts    = -O0 -fasm
+GhcLibHcOpts       = -O0 -fasm
+SplitObjs          = NO
+HADDOCK_DOCS       = NO
+BUILD_DOCBOOK_HTML = NO
+BUILD_DOCBOOK_PS   = NO
+BUILD_DOCBOOK_PDF  = NO
+
+endif
+
+# -------- A Fast build with optimised libs ----------------------------------
+
+ifeq "$(BuildFlavour)" "quick"
+
+SRC_HC_OPTS        = -H64m -O0 -fasm
+GhcStage1HcOpts    = -O -fasm
+GhcStage2HcOpts    = -O0 -fasm
+GhcLibHcOpts       = -O -fasm
+SplitObjs          = NO
+HADDOCK_DOCS       = NO
+BUILD_DOCBOOK_HTML = NO
+BUILD_DOCBOOK_PS   = NO
+BUILD_DOCBOOK_PDF  = NO
+
+endif
+
+# -------- Profile the stage2 compiler ---------------------------------------
+
+ifeq "$(BuildFlavour)" "prof"
+
+SRC_HC_OPTS        = -H64m -O0 -fasm
+GhcStage1HcOpts    = -O -fasm
+GhcStage2HcOpts    = -O -fasm
+GhcLibHcOpts       = -O -fasm
+
+GhcLibWays         += p
+GhcProfiled        = YES
+
+SplitObjs          = NO
+HADDOCK_DOCS       = NO
+BUILD_DOCBOOK_HTML = NO
+BUILD_DOCBOOK_PS   = NO
+BUILD_DOCBOOK_PDF  = NO
+
+endif
+
+
+# -------- A Development build (stage 1) -------------------------------------
+
+ifeq "$(BuildFlavour)" "devel1"
+
+SRC_HC_OPTS        = -H64m -O -fasm
+GhcLibHcOpts       = -O -dcore-lint
+GhcStage1HcOpts    = -Rghc-timing -O0 -DDEBUG
+GhcStage2HcOpts    = -Rghc-timing -O -fasm
+SplitObjs          = NO
+HADDOCK_DOCS       = NO
+BUILD_DOCBOOK_HTML = NO
+BUILD_DOCBOOK_PS   = NO
+BUILD_DOCBOOK_PDF  = NO
+LAX_DEPENDENCIES   = YES
+
+endif
+
+# -------- A Development build (stage 2) -------------------------------------
+
+ifeq "$(BuildFlavour)" "devel2"
+
+SRC_HC_OPTS        = -H64m -O -fasm
+GhcLibHcOpts       = -O -dcore-lint
+GhcStage1HcOpts    = -Rghc-timing -O -fasm
+GhcStage2HcOpts    = -Rghc-timing -O0 -DDEBUG
+SplitObjs          = NO
+HADDOCK_DOCS       = NO
+BUILD_DOCBOOK_HTML = NO
+BUILD_DOCBOOK_PS   = NO
+BUILD_DOCBOOK_PDF  = NO
+LAX_DEPENDENCIES   = YES
+
+# After stage 1 and the libraries have been built, you can uncomment this line:
+
+# stage=2
+
+# Then stage 1 will not be touched by the build system, until
+# you comment the line again.  This is a useful trick for when you're
+# working on stage 2 and want to freeze stage 1 and the libraries for
+# a while.
+
+endif
+
+# -------- A Unregisterised build) -------------------------------------------
+
+ifeq "$(BuildFlavour)" "unreg"
+
+# Note that the LLVM backend works in unregisterised mode as well as
+# registerised mode. This often makes it a good choice for porting
+# GHC.
+
+GhcUnregisterised    = YES
+GhcWithNativeCodeGen = NO
+
+SRC_HC_OPTS          = -O -H64m # -fllvm
+GhcStage1HcOpts      = -O
+GhcStage2HcOpts      = -O2
+GhcHcOpts            = -Rghc-timing
+GhcLibHcOpts         = -O2
+SplitObjs            = NO
+HADDOCK_DOCS         = NO
+BUILD_DOCBOOK_HTML   = NO
+BUILD_DOCBOOK_PS     = NO
+BUILD_DOCBOOK_PDF    = NO
+
+endif
+
+# -----------------------------------------------------------------------------
+# Other settings that might be useful
+
+# NoFib settings
+NoFibWays =
+STRIP_CMD = :
+