ghc.mk

# -----------------------------------------------------------------------------
#
# (c) 2009-2013 The University of Glasgow
#
# This file is part of the GHC build system.
#
# 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
#
# -----------------------------------------------------------------------------

# ToDo List.
#
#   * remove old Makefiles, add new stubs for building in subdirs
#     * docs/Makefile
#     * docs/docbook-cheat-sheet/Makefile
#     * docs/man/Makefile
#     * docs/storage-mgmt/Makefile
#     * docs/vh/Makefile
#     * rts/dotnet/Makefile
#     * utils/Makefile
#   * add Makefiles for the rest of the utils/ programs that aren't built
#     by default (need to exclude them from 'make all' too)

# Possible cleanups:
#
#   * per-source-file dependencies instead of one .depend file?
#   * eliminate undefined variables, and use --warn-undefined-variables?
#   * put outputs from different ways in different subdirs of distdir/build,
#     then we don't have to use -osuf/-hisuf.  We would have to install
#     them in different places too, so we'd need ghc-pkg support for packages
#     of different ways.
#   * make PACKAGES_STAGE1 generated by './configure' or './boot'?
#   * we should use a directory of package.conf files rather than a single
#     file for the inplace package database, so that we can express
#     dependencies more accurately.  Otherwise it's possible to get into
#     a state where the package database is out of date, and the build
#     system doesn't know.

# Approximate build order.
#
# The actual build order is defined by dependencies, and the phase
# ordering used to ensure correct ordering of makefile-generation; see
#    http://hackage.haskell.org/trac/ghc/wiki/Building/Architecture/Idiom/PhaseOrdering
#
#     * With bootstrapping compiler:
#           o Build utils/ghc-cabal
#           o Build utils/ghc-pkg
#           o Build utils/hsc2hs
#     * For each package:
#	    o configure, generate package-data.mk and inplace-pkg-info
#           o register each package into inplace/lib/package.conf
#     * build libffi (if not disabled by --with-system-libffi)
#     * With bootstrapping compiler:
#	    o Build libraries/{filepath,hpc,Cabal}
#           o Build compiler (stage 1)
#     * With stage 1:
#           o Build libraries/*
#	    o Build rts
#           o Build utils/* (except haddock)
#           o Build compiler (stage 2)
#     * With stage 2:
#           o Build utils/haddock
#           o Build compiler (stage 3) (optional)
#     * With haddock:
#           o libraries/*
#           o compiler

.PHONY: default all haddock

# We need second expansion for the way we handle directories, so that
#     | $$$$(dir $$$$@)/.
# expands to the directory of a rule that uses a % pattern.
.SECONDEXPANSION:

default : all

# Catch make if it runs away into an infinite loop
ifeq      "$(MAKE_RESTARTS)" ""
else ifeq "$(MAKE_RESTARTS)" "1"
else
$(error Make has restarted itself $(MAKE_RESTARTS) times; is there a makefile bug?)
endif

ifneq "$(CLEANING)" "YES"
CLEANING = NO
endif

# -----------------------------------------------------------------------------
# Misc GNU make utils

nothing=
space=$(nothing) $(nothing)
comma=,

# Cancel all suffix rules.  Ideally we'd like to have 'make -r' turned on
# by default, because that disables all the implicit rules, but there doesn't
# seem to be a good way to do that.  This turns off all the old-style suffix
# rules, which does half the job and speeds up make quite a bit:
.SUFFIXES:

# -----------------------------------------------------------------------------
# Makefile debugging
#
# to see the effective value used for a Makefile variable, do
#  make show VALUE=MY_VALUE
#

show:
	@echo '$(VALUE)="$($(VALUE))"'

# -----------------------------------------------------------------------------
# Include subsidiary build-system bits

include mk/tree.mk

ifeq "$(findstring clean,$(MAKECMDGOALS))" ""
include mk/config.mk
ifeq "$(ProjectVersion)" ""
$(error Please run ./configure first)
endif
endif

include mk/ways.mk

# (Optional) build-specific configuration
include mk/custom-settings.mk

ifeq "$(findstring clean,$(MAKECMDGOALS))" ""
ifeq "$(DYNAMIC_BY_DEFAULT)" "YES"
ifeq "$(findstring dyn,$(GhcLibWays))" ""
$(error dyn is not in $$(GhcLibWays), but $$(DYNAMIC_BY_DEFAULT) is YES)
endif
else
ifeq "$(findstring v,$(GhcLibWays))" ""
$(error v is not in $$(GhcLibWays), and $$(DYNAMIC_BY_DEFAULT) is not YES)
endif
endif
ifeq "$(GhcProfiled)" "YES"
ifeq "$(findstring p,$(GhcLibWays))" ""
$(error p is not in $$(GhcLibWays), and $$(GhcProfiled) is YES)
endif
endif
endif

ifeq "$(phase)" ""
phase = final
endif

# -----------------------------------------------------------------------------
# Utility definitions

include rules/prof.mk
include rules/trace.mk
include rules/library-path.mk
include rules/add-dependency.mk
include rules/make-command.mk
include rules/pretty_commands.mk

# -----------------------------------------------------------------------------
# Macros for standard targets

include rules/all-target.mk
include rules/clean-target.mk

# -----------------------------------------------------------------------------
# The inplace tree

$(eval $(call clean-target,inplace,,inplace/bin inplace/lib))

# -----------------------------------------------------------------------------
# Whether to build dependencies or not

# When we're just doing 'make clean' or 'make show', then we don't need
# to build dependencies.

ifneq "$(findstring clean,$(MAKECMDGOALS))" ""
NO_INCLUDE_DEPS = YES
NO_INCLUDE_PKGDATA = YES
endif
ifneq "$(findstring bootstrapping-files,$(MAKECMDGOALS))" ""
NO_INCLUDE_DEPS = YES
NO_INCLUDE_PKGDATA = YES
endif
ifeq "$(findstring show,$(MAKECMDGOALS))" "show"
NO_INCLUDE_DEPS = YES
# We want package-data.mk for show
endif

# -----------------------------------------------------------------------------
# Ways

include rules/way-prelims.mk

$(foreach way,$(ALL_WAYS),\
  $(eval $(call way-prelims,$(way))))

ifeq "$(DYNAMIC_BY_DEFAULT)" "YES"
GHCI_WAY = dyn
HADDOCK_WAY = dyn
else
GHCI_WAY = v
HADDOCK_WAY = v
endif

# -----------------------------------------------------------------------------
# Compilation Flags

include rules/distdir-opts.mk
include rules/distdir-way-opts.mk

# -----------------------------------------------------------------------------
# Finding source files and object files

include rules/hs-sources.mk
include rules/c-sources.mk
include rules/includes-sources.mk
include rules/hs-objs.mk
include rules/c-objs.mk
include rules/cmm-objs.mk

# -----------------------------------------------------------------------------
# Suffix rules

# Suffix rules cause "make clean" to fail on Windows (trac #3233)
# so we don't make any when cleaning.
ifneq "$(CLEANING)" "YES"

include rules/hs-suffix-rules-srcdir.mk
include rules/hs-suffix-way-rules-srcdir.mk
include rules/hs-suffix-way-rules.mk
include rules/hi-rule.mk
include rules/c-suffix-rules.mk
include rules/cmm-suffix-rules.mk

endif # CLEANING=YES

# -----------------------------------------------------------------------------
# Building package-data.mk files from .cabal files

include rules/package-config.mk

# -----------------------------------------------------------------------------
# Building dependencies

include rules/dependencies.mk
include rules/build-dependencies.mk
include rules/include-dependencies.mk

# -----------------------------------------------------------------------------
# Build package-data.mk files

include rules/build-package-data.mk

# -----------------------------------------------------------------------------
# Build and install a program

include rules/build-prog.mk
include rules/shell-wrapper.mk

# -----------------------------------------------------------------------------
# Build a perl script

include rules/build-perl.mk

# -----------------------------------------------------------------------------
# Build a package

include rules/build-package.mk
include rules/build-package-way.mk
include rules/haddock.mk
include rules/tags-package.mk
include rules/foreachLibrary.mk

# -----------------------------------------------------------------------------
# Registering hand-written package descriptions (used in rts)

include rules/manual-package-config.mk

# -----------------------------------------------------------------------------
# Docs

include rules/docbook.mk

# -----------------------------------------------------------------------------
# Making bindists

include rules/bindist.mk

# -----------------------------------------------------------------------------
# Directories

# Don't try to delete directories:
.PRECIOUS: %/.

# Create build directories on demand.  NB. the | below: this indicates
# that $(MKDIRHIER) is an order-only dependency, which means that this
# rule fires after building mkdirhier, but we won't try to recreate
# directories if mkdirhier changes.
%/. : | $(MKDIRHIER)
	"$(MKDIRHIER)" $@

# -----------------------------------------------------------------------------
# Lax dependencies

ifeq "$(LAX_DEPENDENCIES)" "YES"
LAX_DEPS_FOLLOW = |
else
LAX_DEPS_FOLLOW =
endif

# This is a bit of a hack. When LAX_DEPS_FOLLOW is | some rules end up
# looking like
#     target: a | b | c
# The first | signals the start of the order-only dependencies, but make
# treats the second | as a dependency. So we need to tell make how to
# build that dependency.

.PHONY: |
| :
	@:

# -----------------------------------------------------------------------------
# Packages to build
# The lists of packages that we *actually* going to build in each stage:
#
#  $(PACKAGES_STAGE0) 
#  $(PACKAGES_STAGE1)
#  $(PACKAGES_STAGE2)
#
# Note that we need to add them to these variables in dependency
# order, as this is the order that they get configured in.

ifeq "$(CLEANING)" "YES"

define addLibraryForCleaning
# We just add all packages to both the stage 0 and stage 1 lists.
# Stage 2 gets cleaned in the same way as stage 1, so no need to
# add it there.
PACKAGES_STAGE0 += $1
PACKAGES_STAGE1 += $1
endef
$(eval $(call foreachLibrary,addLibraryForCleaning))

else

# Packages that are built by stage0. These packages are dependencies of
# programs such as GHC and ghc-pkg, that we do not assume the stage0
# compiler already has installed (or up-to-date enough).

PACKAGES_STAGE0 = Cabal/Cabal hpc bin-package-db hoopl transformers
ifeq "$(Windows_Host)" "NO"
ifneq "$(HostOS_CPP)" "ios"
PACKAGES_STAGE0 += terminfo
endif
endif

PACKAGES_STAGE1 += ghc-prim
PACKAGES_STAGE1 += $(INTEGER_LIBRARY)
PACKAGES_STAGE1 += base
PACKAGES_STAGE1 += filepath
PACKAGES_STAGE1 += array
PACKAGES_STAGE1 += deepseq
PACKAGES_STAGE1 += bytestring
PACKAGES_STAGE1 += containers
PACKAGES_STAGE1 += old-locale

ifeq "$(Windows_Host)" "YES"
PACKAGES_STAGE1 += Win32
endif
PACKAGES_STAGE1 += time
ifeq "$(Windows_Host)" "NO"
PACKAGES_STAGE1 += unix
endif

PACKAGES_STAGE1 += directory
PACKAGES_STAGE1 += process
PACKAGES_STAGE1 += hpc
PACKAGES_STAGE1 += pretty
PACKAGES_STAGE1 += template-haskell
PACKAGES_STAGE1 += Cabal/Cabal
PACKAGES_STAGE1 += binary
PACKAGES_STAGE1 += bin-package-db
PACKAGES_STAGE1 += hoopl
PACKAGES_STAGE1 += transformers

ifneq "$(CrossCompiling)" "YES"
PACKAGES_STAGE2 += old-time
PACKAGES_STAGE2 += haskell98
PACKAGES_STAGE2 += haskell2010
endif

# We normally install only the packages down to this point
REGULAR_INSTALL_PACKAGES := $(addprefix libraries/,$(PACKAGES_STAGE1))
ifeq "$(Stage1Only)" "NO"
REGULAR_INSTALL_PACKAGES += compiler
endif
REGULAR_INSTALL_PACKAGES += $(addprefix libraries/,$(PACKAGES_STAGE2))

PACKAGES_STAGE1 += xhtml
ifeq "$(Windows_Target)" "NO"
ifneq "$(TargetOS_CPP)" "ios"
PACKAGES_STAGE1 += terminfo
endif
endif
PACKAGES_STAGE1 += haskeline

# If we have built the programs with dynamic libraries, then
# ghc will be dynamically linked against haskeline.so etc, so
# we need the dynamic libraries of everything down to here
REGULAR_INSTALL_DYNLIBS := $(addprefix libraries/,$(PACKAGES_STAGE1))
REGULAR_INSTALL_DYNLIBS += $(addprefix libraries/,$(PACKAGES_STAGE2))
REGULAR_INSTALL_DYNLIBS := $(filter-out $(REGULAR_INSTALL_PACKAGES),\
                                        $(REGULAR_INSTALL_DYNLIBS))

ifneq "$(CrossCompiling)" "YES"
define addExtraPackage
ifeq "$2" "-"
# Do nothing; this package is already handled above
else ifeq "$2 $$(GhcProfiled)" "dph YES"
# Ignore the package: These packages need TH, which is incompatible
# with a profiled GHC
else
PACKAGES_STAGE2 += $1
endif
endef
$(eval $(call foreachLibrary,addExtraPackage))
endif

# If we want to just install evreything, then we want all the packages
SUPERSIZE_INSTALL_PACKAGES := $(addprefix libraries/,$(PACKAGES_STAGE1))
ifeq "$(Stage1Only)" "NO"
SUPERSIZE_INSTALL_PACKAGES += compiler
endif
SUPERSIZE_INSTALL_PACKAGES += $(addprefix libraries/,$(PACKAGES_STAGE2))

INSTALL_DYNLIBS  :=
ifeq "$(InstallExtraPackages)" "NO"
INSTALL_PACKAGES := $(REGULAR_INSTALL_PACKAGES)
ifeq "$(DYNAMIC_BY_DEFAULT)" "YES"
INSTALL_DYNLIBS := $(REGULAR_INSTALL_DYNLIBS)
endif
else
INSTALL_PACKAGES := $(SUPERSIZE_INSTALL_PACKAGES)
endif

endif

# -------------------------------------------
# Dependencies between package-data.mk files

# We cannot run ghc-cabal to configure a package until we have
# configured and registered all of its dependencies.  So the following
# hack forces all the configure steps to happen in exactly the following order:
#
#  $(PACKAGES_STAGE1) ghc(stage2) $(PACKAGES_STAGE2)
#
# Ideally we should use the correct dependencies here to allow more
# parallelism, but we don't know the dependencies until we've
# generated the package-data.mk files.
define fixed_pkg_dep
libraries/$1/$2/package-data.mk : $$(fixed_pkg_prev)
fixed_pkg_prev:=libraries/$1/$2/package-data.mk
endef

ifneq "$(BINDIST)" "YES"
fixed_pkg_prev=
$(foreach pkg,$(PACKAGES_STAGE1),$(eval $(call fixed_pkg_dep,$(pkg),dist-install)))

# the GHC package doesn't live in libraries/, so we add its dependency manually:
compiler/stage2/package-data.mk: $(fixed_pkg_prev)
fixed_pkg_prev:=compiler/stage2/package-data.mk

# and continue with PACKAGES_STAGE2, which depend on GHC:
$(foreach pkg,$(PACKAGES_STAGE2),$(eval $(call fixed_pkg_dep,$(pkg),dist-install)))

ghc/stage1/package-data.mk: compiler/stage1/package-data.mk
ghc/stage2/package-data.mk: compiler/stage2/package-data.mk
# haddock depends on ghc and some libraries, but depending on GHC's
# package-data.mk is sufficient, as that in turn depends on all the
# libraries
utils/haddock/dist/package-data.mk: compiler/stage2/package-data.mk
utils/ghc-pwd/dist-install/package-data.mk: compiler/stage2/package-data.mk
utils/ghc-cabal/dist-install/package-data.mk: compiler/stage2/package-data.mk

utils/ghctags/dist-install/package-data.mk: compiler/stage2/package-data.mk
utils/hpc/dist-install/package-data.mk: compiler/stage2/package-data.mk
utils/ghc-pkg/dist-install/package-data.mk: compiler/stage2/package-data.mk
utils/hsc2hs/dist-install/package-data.mk: compiler/stage2/package-data.mk
utils/compare_sizes/dist-install/package-data.mk: compiler/stage2/package-data.mk
utils/runghc/dist-install/package-data.mk: compiler/stage2/package-data.mk
utils/mkUserGuidePart/dist/package-data.mk: compiler/stage2/package-data.mk

# add the final package.conf dependency: ghc-prim depends on RTS
libraries/ghc-prim/dist-install/package-data.mk : rts/package.conf.inplace
endif

# --------------------------------
# Misc package-related settings

BOOT_PKG_CONSTRAINTS := \
    $(foreach d,$(PACKAGES_STAGE0),\
        $(foreach p,$(basename $(notdir $(wildcard libraries/$d/*.cabal))),\
            --constraint "$p == $(shell grep -i "^Version:" libraries/$d/$p.cabal | sed "s/[^0-9.]//g")"))

# The actual .a and .so/.dll files: needed for dependencies.
ALL_STAGE1_LIBS  = $(foreach lib,$(PACKAGES_STAGE1),$(libraries/$(lib)_dist-install_v_LIB))
ifeq "$(BuildSharedLibs)" "YES"
ALL_STAGE1_LIBS += $(foreach lib,$(PACKAGES_STAGE1),$(libraries/$(lib)_dist-install_dyn_LIB))
endif
BOOT_LIBS = $(foreach lib,$(PACKAGES_STAGE0),$(libraries/$(lib)_dist-boot_v_LIB))

# -----------------------------------------------
# Haddock-related bits

# Run Haddock for the packages that will be installed. We need to handle
# compiler specially due to the different dist directory name.
$(foreach p,$(INSTALL_PACKAGES),$(eval $p_dist-install_DO_HADDOCK = YES))
compiler_stage2_DO_HADDOCK = YES

# Build the Haddock contents and index
ifeq "$(HADDOCK_DOCS)" "YES"
libraries/dist-haddock/index.html: inplace/bin/haddock$(exeext) $(ALL_HADDOCK_FILES)
	cd libraries && sh gen_contents_index --intree
ifeq "$(phase)" "final"
$(eval $(call all-target,library_doc_index,libraries/dist-haddock/index.html))
endif
INSTALL_LIBRARY_DOCS += libraries/dist-haddock/*
endif

# ----------------------------------------
# Special magic for the ghc-prim package

# We want the ghc-prim package to include the GHC.Prim module when it
# is registered, but not when it is built, because GHC.Prim is not a
# real source module, it is built-in to GHC.  The old build system did
# this using Setup.hs, but we can't do that here, so we have a flag to
# enable GHC.Prim in the .cabal file (so that the ghc-prim package
# remains compatible with the old build system for the time being).
# GHC.Prim module in the ghc-prim package with a flag:
#
libraries/ghc-prim_CONFIGURE_OPTS += --flag=include-ghc-prim

# And then we strip it out again before building the package:
define libraries/ghc-prim_PACKAGE_MAGIC
libraries/ghc-prim_dist-install_MODULES := $$(filter-out GHC.Prim,$$(libraries/ghc-prim_dist-install_MODULES))
endef

PRIMOPS_TXT_STAGE1 = compiler/stage1/build/primops.txt

libraries/ghc-prim/dist-install/build/GHC/PrimopWrappers.hs : $(GENPRIMOP_INPLACE) $(PRIMOPS_TXT_STAGE1) | $$(dir $$@)/.
	"$(GENPRIMOP_INPLACE)" --make-haskell-wrappers < $(PRIMOPS_TXT_STAGE1) >$@

# Required so that Haddock documents the primops.
libraries/ghc-prim_dist-install_EXTRA_HADDOCK_SRCS = libraries/ghc-prim/dist-install/build/autogen/GHC/Prim.hs

# ----------------------------------------
# Special magic for the integer package

ifneq "$(CLEANING)" "YES"
ifeq "$(INTEGER_LIBRARY)" "integer-gmp"
libraries/base_dist-install_CONFIGURE_OPTS += --flags=-integer-simple
else ifeq "$(INTEGER_LIBRARY)" "integer-simple"
libraries/base_dist-install_CONFIGURE_OPTS += --flags=integer-simple
else
$(error Unknown integer library: $(INTEGER_LIBRARY))
endif
endif

# ----------------------------------------
# Workarounds for problems building DLLs on Windows

ifeq "$(TargetOS_CPP)" "mingw32"
# We don't build the GHC package the dyn way on Windows, so
# we can't build these packages the dyn way either. See trac #5987
libraries/dph/dph-lifted-base_dist-install_EXCLUDED_WAYS := dyn
libraries/dph/dph-lifted-boxed_dist-install_EXCLUDED_WAYS := dyn
libraries/dph/dph-lifted-copy_dist-install_EXCLUDED_WAYS := dyn
libraries/dph/dph-lifted-vseg_dist-install_EXCLUDED_WAYS := dyn
endif

# -----------------------------------------------------------------------------
# Include build instructions from all subdirs

# These need to be in dependency order, as some of the rules refer to
# variables defined by their dependencies

ifneq "$(BINDIST)" "YES"
BUILD_DIRS += $(GHC_MKDIRHIER_DIR)
endif

ifeq "$(Windows_Host)" "YES"
BUILD_DIRS += $(GHC_TOUCHY_DIR)
endif

BUILD_DIRS += docs/users_guide
BUILD_DIRS += docs/man
BUILD_DIRS += $(GHC_UNLIT_DIR)
BUILD_DIRS += $(GHC_HP2PS_DIR)

ifneq "$(GhcUnregisterised)" "YES"
BUILD_DIRS += $(GHC_SPLIT_DIR)
endif

ifneq "$(BINDIST)" "YES"
BUILD_DIRS += $(GHC_GENPRIMOP_DIR)
endif

ifeq "$(Stage1Only)-$(phase)" "YES-final"
MAYBE_GHCI=
else
MAYBE_GHCI=driver/ghci
endif

BUILD_DIRS += driver
BUILD_DIRS += $(MAYBE_GHCI)
BUILD_DIRS += driver/ghc
BUILD_DIRS += driver/haddock
BUILD_DIRS += libffi
BUILD_DIRS += includes
BUILD_DIRS += rts

ifneq "$(BINDIST)" "YES"
BUILD_DIRS += bindisttest 
BUILD_DIRS += $(GHC_GENAPPLY_DIR)
endif

ifneq "$(CLEANING)" "YES"
BUILD_DIRS += $(patsubst %, libraries/%, $(PACKAGES_STAGE1))
endif


ifeq "$(INTEGER_LIBRARY)" "integer-gmp"
BUILD_DIRS += libraries/integer-gmp/gmp
else ifneq "$(findstring clean,$(MAKECMDGOALS))" ""
BUILD_DIRS += libraries/integer-gmp/gmp
endif

ifeq "$(CrossCompiling)-$(phase)" "YES-final"
MAYBE_GHCTAGS=
MAYBE_HPC=
MAYBE_RUNGHC=
else
MAYBE_GHCTAGS=utils/ghctags
MAYBE_HPC=utils/hpc
MAYBE_RUNGHC=utils/runghc
endif

BUILD_DIRS += utils/haddock
BUILD_DIRS += utils/haddock/doc
BUILD_DIRS += compiler
BUILD_DIRS += $(GHC_HSC2HS_DIR)
BUILD_DIRS += $(GHC_PKG_DIR)
BUILD_DIRS += utils/deriveConstants
BUILD_DIRS += utils/testremove
BUILD_DIRS += $(MAYBE_GHCTAGS)
BUILD_DIRS += utils/ghc-pwd
BUILD_DIRS += $(GHC_CABAL_DIR)
BUILD_DIRS += $(MAYBE_HPC)
BUILD_DIRS += $(MAYBE_RUNGHC)
BUILD_DIRS += ghc

ifneq "$(CLEANING)" "YES"
BUILD_DIRS += $(patsubst %, libraries/%, $(PACKAGES_STAGE2))
BUILD_DIRS += libraries/dph
endif

ifneq "$(BINDIST)" "YES"
ifneq "$(CrossCompiling)-$(phase)" "YES-final"
BUILD_DIRS += utils/mkUserGuidePart
endif
endif

BUILD_DIRS += utils/count_lines
BUILD_DIRS += utils/compare_sizes

# ----------------------------------------------
# Actually include all the sub-ghc.mk's

include $(patsubst %, %/ghc.mk, $(BUILD_DIRS))

# A useful pseudo-target (must be after the include above, because it needs
# the value of things like $(libraries/base_dist-install_v_LIB).
.PHONY: stage1_libs
stage1_libs : $(ALL_STAGE1_LIBS)

# ----------------------------------------------
# Per-package compiler flags
# 
# If you want to add per-package compiler flags, this 
# is the place to do it.  Do it like this for package <pkg>
#   
#   libraries/<pkg>_dist-boot_HC_OPTS += -Wwarn
#   libraries/<pkg>_dist-install_HC_OPTS += -Wwarn

# Add $(GhcLibHcOpts) to all package builds
$(foreach pkg,$(PACKAGES_STAGE1) $(PACKAGES_STAGE2),$(eval libraries/$(pkg)_dist-install_HC_OPTS += $$(GhcLibHcOpts)))

# Add $(GhcBootLibHcOpts) to all stage0 package builds
$(foreach pkg,$(PACKAGES_STAGE0),$(eval libraries/$(pkg)_dist-boot_HC_OPTS += $$(GhcBootLibHcOpts)))

# -----------------------------------------------------------------------------
# Bootstrapping libraries

# We need to build a few libraries with the installed GHC, since GHC itself
# and some of the tools depend on them:

ifneq "$(BINDIST)" "YES"

ifneq "$(BOOTSTRAPPING_CONF)" ""
ifeq "$(wildcard $(BOOTSTRAPPING_CONF))" ""
$(shell echo "[]" >$(BOOTSTRAPPING_CONF))
endif
endif

$(eval $(call clean-target,$(BOOTSTRAPPING_CONF),,$(BOOTSTRAPPING_CONF)))

# register the boot packages in strict sequence, because running
# multiple ghc-pkgs in parallel doesn't work (registrations may get
# lost).
fixed_pkg_prev=
$(foreach pkg,$(PACKAGES_STAGE0),$(eval $(call fixed_pkg_dep,$(pkg),dist-boot)))
utils/ghc-pkg/dist/package-data.mk: $(fixed_pkg_prev)
compiler/stage1/package-data.mk:    $(fixed_pkg_prev)
endif

ifneq "$(BINDIST)" "YES"
# Make sure we have all the GHCi libs by the time we've built
# ghc-stage2.  DPH includes a bit of Template Haskell which needs the
# GHCI libs, and we don't have a better way to express that dependency.
#
GHCI_LIBS = $(foreach lib,$(PACKAGES_STAGE1),$(libraries/$(lib)_dist-install_GHCI_LIB)) \
	    $(compiler_stage2_GHCI_LIB)

ifeq "$(UseArchivesForGhci)" "NO"
ghc/stage2/build/tmp/$(ghc_stage2_PROG) : $(GHCI_LIBS)
endif

ifeq "$(UseArchivesForGhci)" "YES"
GHCI_lib_way = v
else
GHCI_lib_way = GHCI
endif

# Deps for TH uses in libraries
$(foreach way, $(GhcLibWays),$(eval \
libraries/vector/dist-install/build/Data/Vector/Fusion/Stream/Monadic.$($(way)_osuf): \
    $(libraries/primitive_dist-install_$(GHCI_lib_way)_LIB) \
  ))
endif

# -----------------------------------------------------------------------------
# Creating a local mingw copy on Windows

ifeq "$(Windows_Host)" "YES"

install : install_mingw
.PHONY: install_mingw
install_mingw : $(INPLACE_MINGW)
	"$(CP)" -Rp $(INPLACE_MINGW) $(prefix)

install : install_perl
.PHONY: install_perl
install_perl : $(INPLACE_PERL)
	"$(CP)" -Rp $(INPLACE_PERL) $(prefix)

endif # Windows_Host

ifneq "$(BINDIST)" "YES"
$(ghc-prim-$(libraries/ghc-prim_dist-install_VERSION)_HADDOCK_FILE): \
    libraries/ghc-prim/dist-install/build/autogen/GHC/Prim.hs
endif # BINDIST

libraries/ghc-prim/dist-install/build/autogen/GHC/Prim.hs: \
                            $(PRIMOPS_TXT_STAGE1) $(GENPRIMOP_INPLACE) \
                          | $$(dir $$@)/.
	"$(GENPRIMOP_INPLACE)" --make-haskell-source < $< > $@

.PHONY: tags
tags: tags_compiler

.PHONY: TAGS
TAGS: TAGS_compiler

# -----------------------------------------------------------------------------
# Installation

install: install_libs install_packages install_libexecs \
         install_bins install_topdirs
ifeq "$(HADDOCK_DOCS)" "YES"
install: install_docs
endif

define installLibsTo
# $1 = libraries to install
# $2 = directory to install to
	$(call INSTALL_DIR,$2)
	for i in $1; do \
		case $$i in \
		  *.a) \
		    $(call INSTALL_DATA,$(INSTALL_OPTS),$$i,$2); \
		    $(RANLIB) $2/`basename $$i` ;; \
		  *.dll) \
		    $(call INSTALL_PROGRAM,$(INSTALL_OPTS),$$i,$2) ; \
		    $(STRIP_CMD) $2/`basename $$i` ;; \
		  *.so) \
		    $(call INSTALL_SHLIB,$(INSTALL_OPTS),$$i,$2) ;; \
		  *.dylib) \
		    $(call INSTALL_SHLIB,$(INSTALL_OPTS),$$i,$2);; \
		  *) \
		    $(call INSTALL_DATA,$(INSTALL_OPTS),$$i,$2); \
		esac; \
	done
endef

install_bins: $(INSTALL_BINS)
	$(call INSTALL_DIR,"$(DESTDIR)$(bindir)")
	for i in $(INSTALL_BINS); do \
		$(call INSTALL_PROGRAM,$(INSTALL_BIN_OPTS),$$i,"$(DESTDIR)$(bindir)") ;  \
	done

install_libs: $(INSTALL_LIBS)
	$(call installLibsTo, $(INSTALL_LIBS), "$(DESTDIR)$(ghclibdir)")

install_libexecs:  $(INSTALL_LIBEXECS)
ifeq "$(INSTALL_LIBEXECS)" ""
	@:
else
	$(call INSTALL_DIR,"$(DESTDIR)$(ghclibexecdir)/bin")
	for i in $(INSTALL_LIBEXECS); do \
		$(call INSTALL_PROGRAM,$(INSTALL_BIN_OPTS),$$i,"$(DESTDIR)$(ghclibexecdir)/bin"); \
	done
# We rename ghc-stage2, so that the right program name is used in error
# messages etc.
	"$(MV)" "$(DESTDIR)$(ghclibexecdir)/bin/ghc-stage$(INSTALL_GHC_STAGE)" "$(DESTDIR)$(ghclibexecdir)/bin/ghc"
endif

install_topdirs: $(INSTALL_TOPDIRS)
	$(call INSTALL_DIR,"$(DESTDIR)$(topdir)")
	for i in $(INSTALL_TOPDIRS); do \
		$(call INSTALL_PROGRAM,$(INSTALL_BIN_OPTS),$$i,"$(DESTDIR)$(topdir)"); \
	done

install_docs: $(INSTALL_DOCS)
	$(call INSTALL_DIR,"$(DESTDIR)$(docdir)")
ifneq "$(INSTALL_DOCS)" ""
	for i in $(INSTALL_DOCS); do \
		$(call INSTALL_DOC,$(INSTALL_OPTS),$$i,"$(DESTDIR)$(docdir)"); \
	done
endif
	$(call INSTALL_DIR,"$(DESTDIR)$(docdir)/html")
	$(call INSTALL_DOC,$(INSTALL_OPTS),docs/index.html,"$(DESTDIR)$(docdir)/html")
ifneq "$(INSTALL_LIBRARY_DOCS)" ""
	$(call INSTALL_DIR,"$(DESTDIR)$(docdir)/html/libraries")
	for i in $(INSTALL_LIBRARY_DOCS); do \
		$(call INSTALL_DOC,$(INSTALL_OPTS),$$i,"$(DESTDIR)$(docdir)/html/libraries/"); \
	done
	$(call INSTALL_DATA,$(INSTALL_OPTS),libraries/prologue.txt,"$(DESTDIR)$(docdir)/html/libraries/")
	$(call INSTALL_SCRIPT,$(INSTALL_OPTS),libraries/gen_contents_index,"$(DESTDIR)$(docdir)/html/libraries/")
endif
ifneq "$(INSTALL_HTML_DOC_DIRS)" ""
	for i in $(INSTALL_HTML_DOC_DIRS); do \
		$(call INSTALL_DIR,"$(DESTDIR)$(docdir)/html/`basename $$i`"); \
		$(call INSTALL_DOC,$(INSTALL_OPTS),$$i/*,"$(DESTDIR)$(docdir)/html/`basename $$i`"); \
	done
endif

INSTALLED_PACKAGE_CONF=$(DESTDIR)$(topdir)/package.conf.d

# Install packages in the right order, so that ghc-pkg doesn't complain.
# Also, install ghc-pkg first.
ifeq "$(Windows_Host)" "NO"
INSTALLED_GHC_REAL=$(DESTDIR)$(ghclibexecdir)/bin/ghc
INSTALLED_GHC_PKG_REAL=$(DESTDIR)$(ghclibexecdir)/bin/ghc-pkg
else
INSTALLED_GHC_REAL=$(DESTDIR)$(bindir)/ghc.exe
INSTALLED_GHC_PKG_REAL=$(DESTDIR)$(bindir)/ghc-pkg.exe
endif

# Set the INSTALL_DISTDIR_p for each package; compiler is special
$(foreach p,$(filter-out compiler,$(INSTALL_PACKAGES)),\
   $(eval INSTALL_DISTDIR_$p = dist-install))
INSTALL_DISTDIR_compiler = stage2

# Now we can do the installation
install_packages: install_libexecs
install_packages: rts/package.conf.install
	$(call INSTALL_DIR,"$(DESTDIR)$(topdir)")
	$(call removeTrees,"$(INSTALLED_PACKAGE_CONF)")
	$(call INSTALL_DIR,"$(INSTALLED_PACKAGE_CONF)")
	$(call INSTALL_DIR,"$(DESTDIR)$(topdir)/rts-1.0")
	$(call installLibsTo, $(RTS_INSTALL_LIBS), "$(DESTDIR)$(topdir)/rts-1.0")
	$(foreach p, $(INSTALL_DYNLIBS), \
	    $(call installLibsTo, $(wildcard libraries/$p/dist-install/build/*.so libraries/$p/dist-install/build/*.dll libraries/$p/dist-install/build/*.dylib), "$(DESTDIR)$(topdir)/$p-$(libraries/$p_dist-install_VERSION)"))
	$(foreach p, $(INSTALL_PACKAGES),                             \
	    $(call make-command,                                      \
	           "$(GHC_CABAL_INPLACE)" copy                        \
	                                  "$(STRIP_CMD)"              \
	                                  $p $(INSTALL_DISTDIR_$p)    \
	                                  '$(DESTDIR)'                \
	                                  '$(prefix)'                 \
	                                  '$(ghclibdir)'              \
	                                  '$(docdir)/html/libraries'))
	"$(INSTALLED_GHC_PKG_REAL)" --force --global-package-db "$(INSTALLED_PACKAGE_CONF)" update rts/package.conf.install
	$(foreach p, $(INSTALL_PACKAGES),                             \
	    $(call make-command,                                      \
	           "$(GHC_CABAL_INPLACE)" register                    \
	                                  "$(INSTALLED_GHC_REAL)"     \
	                                  "$(INSTALLED_GHC_PKG_REAL)" \
	                                  "$(DESTDIR)$(topdir)"       \
	                                  $p $(INSTALL_DISTDIR_$p)    \
	                                  '$(DESTDIR)'                \
	                                  '$(prefix)'                 \
	                                  '$(ghclibdir)'              \
	                                  '$(docdir)/html/libraries'  \
	                                  $(RelocatableBuild)))
# when we install the packages above, ghc-pkg obeys umask when creating
# the package.conf files, but for everything else we specify the
# permissions. We therefore now fix the permissions of package.cache.
# This means "sudo make install" does the right thing even if it runs
# with an 077 umask.
	for f in '$(INSTALLED_PACKAGE_CONF)'/*; do $(CREATE_DATA) "$$f"; done

# -----------------------------------------------------------------------------
# Binary distributions

ifneq "$(CLEANING)" "YES"
# This rule seems to hold some files open on Windows which prevents
# cleaning, perhaps due to the $(wildcard).

$(eval $(call bindist,.,\
    LICENSE \
    README \
    INSTALL \
    configure config.sub config.guess install-sh \
    settings.in \
    packages \
    Makefile \
    mk/config.mk.in \
    $(INPLACE_BIN)/mkdirhier \
    utils/ghc-cabal/dist-install/build/tmp/ghc-cabal \
    utils/ghc-pwd/dist-install/build/tmp/ghc-pwd \
    $(BINDIST_WRAPPERS) \
    $(BINDIST_PERL_SOURCES) \
    $(BINDIST_LIBS) \
    $(BINDIST_HI) \
    $(BINDIST_EXTRAS) \
    $(includes_H_FILES) \
    $(includes_DERIVEDCONSTANTS) \
    $(includes_GHCCONSTANTS) \
    $(libffi_HEADERS) \
    $(INSTALL_LIBEXECS) \
    $(INSTALL_LIBEXEC_SCRIPTS) \
    $(INSTALL_TOPDIRS) \
    $(INSTALL_BINS) \
    $(INSTALL_MANPAGES) \
    $(INSTALL_DOCS) \
    $(INSTALL_LIBRARY_DOCS) \
    $(addsuffix /*,$(INSTALL_HTML_DOC_DIRS)) \
    docs/index.html \
    compiler/stage2/doc \
    $(wildcard libraries/*/dist-install/doc/) \
    $(wildcard libraries/*/*/dist-install/doc/) \
    $(filter-out settings,$(INSTALL_LIBS)) \
    $(RTS_INSTALL_LIBS) \
    $(filter-out %/project.mk mk/config.mk %/mk/install.mk,$(MAKEFILE_LIST)) \
    mk/project.mk \
    mk/install.mk.in \
    bindist.mk \
    libraries/gen_contents_index \
    libraries/prologue.txt \
    $(wildcard libraries/dph/LICENSE \
               libraries/dph/ghc-packages \
               libraries/dph/ghc-packages2 \
               libraries/dph/ghc-stage2-package) \
 ))
endif
# mk/project.mk gets an absolute path, so we manually include it in
# the bindist with a relative path

BIN_DIST_MK = $(BIN_DIST_PREP_DIR)/bindist.mk

unix-binary-dist-prep:
	$(call removeTrees,bindistprep/)
	"$(MKDIRHIER)" $(BIN_DIST_PREP_DIR)
	set -e; for i in packages LICENSE compiler ghc rts libraries utils docs libffi includes driver mk rules Makefile aclocal.m4 config.sub config.guess install-sh settings.in ghc.mk inplace distrib/configure.ac distrib/README distrib/INSTALL; do ln -s ../../$$i $(BIN_DIST_PREP_DIR)/; done
	echo "HADDOCK_DOCS       = $(HADDOCK_DOCS)"       >> $(BIN_DIST_MK)
	echo "BUILD_DOCBOOK_HTML = $(BUILD_DOCBOOK_HTML)" >> $(BIN_DIST_MK)
	echo "BUILD_DOCBOOK_PS   = $(BUILD_DOCBOOK_PS)"   >> $(BIN_DIST_MK)
	echo "BUILD_DOCBOOK_PDF  = $(BUILD_DOCBOOK_PDF)"  >> $(BIN_DIST_MK)
	echo "BUILD_MAN          = $(BUILD_MAN)"          >> $(BIN_DIST_MK)
	echo "GHC_CABAL_INPLACE  = utils/ghc-cabal/dist-install/build/tmp/ghc-cabal-bindist" >> $(BIN_DIST_MK)
	echo "UseSystemLibFFI    = $(UseSystemLibFFI)"    >> $(BIN_DIST_MK)
	cd $(BIN_DIST_PREP_DIR) && autoreconf
	$(call removeFiles,$(BIN_DIST_PREP_TAR))
# h means "follow symlinks", e.g. if aclocal.m4 is a symlink to a source
# tree then we want to include the real file, not a symlink to it
	cd bindistprep &&