-#-----------------------------------------------------------------------------
-# $Id: Makefile,v 1.24 2004/02/12 02:11:34 mthomas Exp $
+# -----------------------------------------------------------------------------
#
-
-TOP=.
-include $(TOP)/mk/boilerplate.mk
-
-#
-# subdir dependencies:
-# everything needs utils
-# includes/ needs driver (to easily c.pile mkNativeGen.c)
-# make depend except in {utils,driver} needs includes
-# RTS and compiler need includes
+# (c) 2009 The University of Glasgow
#
-
-#
-# Order is important! It's e.g. necessary to descend into include/
-# before the rest to have a config.h, etc.
+# This file is part of the GHC build system.
#
-# If we're booting from .hc files, swap the order
-# we descend into subdirs - to boot utils must be before driver.
+# To understand how the build system works and how to modify it, see
+# http://hackage.haskell.org/trac/ghc/wiki/Building/Architecture
+# http://hackage.haskell.org/trac/ghc/wiki/Building/Modifying
#
+# -----------------------------------------------------------------------------
+
+dir = ghc
+TOP = ..
+SPEC_TARGETS = 1 2 3
+include $(TOP)/mk/sub-makefile.mk
+
+FAST_MAKE_OPTS += compiler_stage1_NO_BUILD_DEPS=YES \
+ compiler_stage2_NO_BUILD_DEPS=YES \
+ compiler_stage3_NO_BUILD_DEPS=YES \
+ ghc_stage1_NO_BUILD_DEPS=YES \
+ ghc_stage2_NO_BUILD_DEPS=YES \
+ ghc_stage3_NO_BUILD_DEPS=YES
+
+.PHONY: 1 2 3
+
+1:
+ +$(TOPMAKE) stage=1 all_ghc_stage1 $(FAST_MAKE_OPTS) NO_STAGE1_DEPS=YES NO_STAGE2_DEPS=YES
+
+2:
+ +$(TOPMAKE) stage=2 all_ghc_stage2 $(FAST_MAKE_OPTS) NO_STAGE2_DEPS=YES
+
+3:
+ +$(TOPMAKE) stage=3 all_ghc_stage3 $(FAST_MAKE_OPTS) NO_STAGE3_DEPS=YES
+
-# First - check whether we should build the docs directory.
-# On Windows, the tools to build docs are not always available.
-
-ifneq "$(SGMLDocWays)" ""
-DOCS_DIR = docs
-else
-DOCS_DIR =
-endif
-
-ifeq "$(BootingFromHc)" "YES"
-SUBDIRS = includes rts $(DOCS_DIR) compiler utils driver
-else
-ifneq "$(ILXized)" "YES"
-SUBDIRS = includes utils driver $(DOCS_DIR) compiler rts
-else
-# No RTS for ILX
-SUBDIRS = includes utils driver $(DOCS_DIR) compiler
-endif
-endif
-
-ifeq ($(IncludeTestDirsInBuild),YES)
-SUBDIRS += tests
-endif
-
-SRC_DIST_FILES += configure
-
-DIST_CLEAN_FILES += config.cache config.status ghc.spec
-
-extraclean::
- $(RM) -rf autom4te.cache
-
-ifeq "$(TARGETPLATFORM)" "i386-unknown-mingw32"
-# These files need to be in the InstallShield
-# INSTALL_DATAS rather than INSTALL_DOCS is used so these files go
-# in the top-level directory of the distribution
-INSTALL_DATAS += ANNOUNCE LICENSE README VERSION
-endif
-
-include $(TOP)/mk/target.mk
+.PHONY: extra-help
+help : extra-help
+extra-help :
+ @echo " make 1"
+ @echo " make 2"
+ @echo " make 3"
+ @echo
+ @echo " Build the stage 1, 2 or 3 GHC respectively, omitting dependencies"
+ @echo " and initial phases for speed."