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://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
#
# -----------------------------------------------------------------------------

# ToDo List.
#
#   * remove old Makefiles, add new stubs for building in subdirs
#     * docs/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#     a state where the package database is out of date, and the build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://ghc.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
#           o Build utils/genprimopcode
#           o Build utils/deriveConstants
#     * For each package:
#	    o configure, generate package-data.mk and inplace-pkg-config
#           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 compiler:
#           o Build libraries/*
#	    o Build rts
#           o Build utils/* (except haddock)
#           o Build compiler (stage 2)
#     * With stage 2 compiler:
#           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


##################################################
# Check that we have a new enough 'make'

HAVE_EVAL := NO
$(eval HAVE_EVAL := YES)

ifeq "$(HAVE_EVAL)" "NO"
$(error Your make does not support eval. You need GNU make >= 3.81)
endif

ifeq "$(abspath /)" ""
$(error Your make does not support abspath. You need GNU make >= 3.81)
endif
##################################################


# 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? See http://ghc.haskell.org/trac/ghc/wiki/Building/Troubleshooting#Makehasrestarteditself3timesisthereamakefilebug for details)
endif

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

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

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

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

# echo is used by the nightly builders to query the build system for
# information.
# Using printf means that we don't get a trailing newline. We escape
# backslashes and double quotes in the string to protect them from the
# shell, and percent signs to protect them from printf.
echo:
	@printf "$(subst %,%%,$(subst ",\",$(subst \,\\\\,$($(VALUE)))))"

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

include mk/tree.mk

ifneq "$(CLEANING)" "YES"
include mk/config.mk
ifeq "$(ProjectVersion)" ""
$(error Please run ./configure first)
endif
endif

include mk/ways.mk

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

# The user can reset SRC_HC_OPTS from mk/build.mk. Since we try to append
# '-Wall' to it in mk/warnings.mk, we have to include mk/warnings.mk after
# mk/custom-settings.mk.
include mk/warnings.mk

# -----------------------------------------------------------------------------
# Check for inconsistent settings, after reading mk/build.mk.
# Although mk/config.mk should always contain consistent settings (set by
# configure), mk/build.mk can contain pretty much anything.

ifneq "$(CLEANING)" "YES"

ifeq "$(DYNAMIC_GHC_PROGRAMS)" "YES"
ifeq "$(findstring dyn,$(GhcLibWays))" ""
$(error dyn is not in $$(GhcLibWays), but $$(DYNAMIC_GHC_PROGRAMS) is YES)
endif
else
ifeq "$(findstring v,$(GhcLibWays))" ""
$(error v is not in $$(GhcLibWays), and $$(DYNAMIC_GHC_PROGRAMS) is not YES)
endif
endif

ifeq "$(GhcProfiled)" "YES"
ifeq "$(findstring p,$(GhcLibWays))" ""
$(error p is not in $$(GhcLibWays), and $$(GhcProfiled) is YES)
endif
endif

ifeq "$(BUILD_SPHINX_HTML)" "YES"
ifeq "$(SPHINXBUILD)" ""
$(error BUILD_SPHINX_HTML=YES, but `sphinx-build` was not found. \
  Create a file `mk/validate.mk` containing `BUILD_SPHINX_HTML=NO` \
  (when validating), or install `sphinx-build` and rerun `./configure`. \
  See https://ghc.haskell.org/trac/ghc/wiki/Building/Preparation)
endif
endif

ifeq "$(BUILD_SPHINX_PDF)" "YES"
ifeq "$(XELATEX)" ""
$(error BUILD_SPHINX_PDF=YES, but `xelatex` was not found. \
  Install `xelatex`, then rerun `./configure`. \
  See https://ghc.haskell.org/trac/ghc/wiki/Building/Preparation)
endif
endif

ifeq "$(HSCOLOUR_SRCS)" "YES"
ifeq "$(HSCOLOUR_CMD)" ""
$(error HSCOLOUR_SRCS=YES, but HSCOLOUR_CMD is empty. \
  Run `cabal install hscolour`, then rerun `./configure`. \
  See https://ghc.haskell.org/trac/ghc/wiki/Building/Preparation)
endif
endif

endif # CLEANING

# -----------------------------------------------------------------------------

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,root,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.

ifeq "$(CLEANING)" "YES"
NO_INCLUDE_DEPS = YES
NO_INCLUDE_PKGDATA = YES
endif
ifneq "$(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_GHC_PROGRAMS)" "YES"
GHCI_WAY = dyn
HADDOCK_WAY = dyn
else
GHCI_WAY = v
HADDOCK_WAY = v
endif

WINDOWS_DYN_PROG_RTS := rts
ifeq "$(GhcThreaded)" "YES"
WINDOWS_DYN_PROG_RTS := $(WINDOWS_DYN_PROG_RTS)_thr
endif
ifeq "$(GhcDebugged)" "YES"
WINDOWS_DYN_PROG_RTS := $(WINDOWS_DYN_PROG_RTS)_debug
endif
WINDOWS_DYN_PROG_RTS := $(WINDOWS_DYN_PROG_RTS)_dyn_LIB_FILE

# -----------------------------------------------------------------------------
# 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

# -----------------------------------------------------------------------------
# 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/sphinx.mk

# -----------------------------------------------------------------------------
# Making bindists and sdists

include rules/bindist.mk
include rules/sdist-ghc-file.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 # CLEANING

# 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 = binary Cabal/Cabal hpc ghc-boot hoopl transformers template-haskell
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

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 += binary
PACKAGES_STAGE1 += Cabal/Cabal
PACKAGES_STAGE1 += ghc-boot
PACKAGES_STAGE1 += template-haskell
PACKAGES_STAGE1 += hoopl
PACKAGES_STAGE1 += transformers

ifeq "$(HADDOCK_DOCS)" "YES"
PACKAGES_STAGE1 += xhtml
endif

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

# See Note [No stage2 packages when CrossCompiling or Stage1Only].
# See Note [Stage1Only vs stage=1] in mk/config.mk.in.
ifeq "$(CrossCompiling) $(Stage1Only)" "NO NO"
define addExtraPackage
ifeq "$2" "-"
# Do nothing; this package is already handled above
else ifeq "$2" "dph"
ifeq "$$(BUILD_DPH) $$(GhcProfiled)" "YES NO"
# The DPH packages need TH, which is incompatible with a profiled GHC.
PACKAGES_STAGE2 += $1
endif
else ifeq "$2" "extra"
ifeq "$$(BUILD_EXTRA_PKGS)" "YES"
PACKAGES_STAGE2 += $1
endif
else
$$(error Unknown package tag: $2)
endif
endef
$(eval $(call foreachLibrary,addExtraPackage))
endif

# We install all packages that we build.
INSTALL_PACKAGES := $(addprefix libraries/,$(PACKAGES_STAGE1))
# See Note [Stage1Only vs stage=1] in mk/config.mk.in.
ifneq "$(Stage1Only)" "YES"
INSTALL_PACKAGES += compiler
endif
INSTALL_PACKAGES += $(addprefix libraries/,$(PACKAGES_STAGE2))

endif # CLEANING

# -------------------------------------------
# Note [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)))

# Intermezzo: utils that we build with the stage1 compiler. They depend on
# the stage1 packages, so we have to make sure those packages get configured
# and registered before we can start with these. Note that they don't depend on
# eachother, so we can configure them in parallel.
utils/ghc-cabal/dist-install/package-data.mk: $(fixed_pkg_prev)
utils/hpc/dist-install/package-data.mk: $(fixed_pkg_prev)
utils/ghc-pkg/dist-install/package-data.mk: $(fixed_pkg_prev)
utils/hsc2hs/dist-install/package-data.mk: $(fixed_pkg_prev)
utils/compare_sizes/dist-install/package-data.mk: $(fixed_pkg_prev)
utils/runghc/dist-install/package-data.mk: $(fixed_pkg_prev)
iserv/stage2/package-data.mk: $(fixed_pkg_prev)
iserv/stage2_p/package-data.mk: $(fixed_pkg_prev)
iserv/stage2_dyn/package-data.mk: $(fixed_pkg_prev)

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

# and continue with PACKAGES_STAGE2, which depend on GHC:
fixed_pkg_prev:=compiler/stage2/package-data.mk
$(foreach pkg,$(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

# Utils that we build with the stage2 compiler.
# They depend on the ghc library and some other libraries, but depending on
# the ghc library's package-data.mk is sufficient, as that in turn depends on
# all the other libraries' package-data.mk files.
utils/haddock/dist/package-data.mk: compiler/stage2/package-data.mk
utils/ghctags/dist-install/package-data.mk: compiler/stage2/package-data.mk
utils/check-api-annotations/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/dist/package.conf.inplace
endif

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

# 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

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.
$(foreach way,$(GhcLibWays),$(eval ALL_STAGE1_$(way)_LIBS = $$(foreach lib,$$(PACKAGES_STAGE1),$$(libraries/$$(lib)_dist-install_$(way)_LIB))))

ALL_STAGE1_LIBS = $(ALL_STAGE1_v_LIBS)

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))

# ----------------------------------------
# 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 : $$(genprimopcode_INPLACE) $(PRIMOPS_TXT_STAGE1) | $$(dir $$@)/.
	"$(genprimopcode_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-gmp
else ifeq "$(INTEGER_LIBRARY)" "integer-simple"
libraries/base_dist-install_CONFIGURE_OPTS += --flags=integer-simple
else
$(error Unknown integer library: $(INTEGER_LIBRARY))
endif
endif

# -----------------------------------------------------------------------------
# Include build instructions from all subdirs
BUILD_DIRS += utils/mkdirhier
BUILD_DIRS += utils/touchy
BUILD_DIRS += utils/unlit
BUILD_DIRS += utils/hp2ps
BUILD_DIRS += driver/split
BUILD_DIRS += utils/genprimopcode
BUILD_DIRS += driver
BUILD_DIRS += driver/ghci
BUILD_DIRS += driver/ghc
BUILD_DIRS += driver/haddock
BUILD_DIRS += libffi
BUILD_DIRS += utils/deriveConstants
BUILD_DIRS += includes
BUILD_DIRS += rts
BUILD_DIRS += bindisttest
BUILD_DIRS += utils/genapply

# When cleaning, don't add any library packages to BUILD_DIRS. We include
# ghc.mk files for all BUILD_DIRS, but they don't exist until after running
# `./boot`. Running `make clean` before anything else, as well as running
# `make maintainer-clean` twice, should work.
ifneq "$(CLEANING)" "YES"
# These are deliberately in reverse order, so as to ensure that
# there is no need to have them in dependency order. That's important
# because it's tricky to ensure that they are in dependency order when
# cross-compiling, as some packages may only be in PACKAGES_STAGE0
# or PACKAGES_STAGE1.
BUILD_DIRS += $(patsubst %, libraries/%, $(PACKAGES_STAGE2))
BUILD_DIRS += $(patsubst %, libraries/%, $(PACKAGES_STAGE1))
BUILD_DIRS += $(patsubst %, libraries/%, $(filter-out $(PACKAGES_STAGE1),$(PACKAGES_STAGE0)))
ifeq "$(BUILD_DPH)" "YES"
# Note: `$(eval $(call foreachLibrary,addExtraPackage))` above adds the
# packages listed in `libraries/dph/ghc-packages` (e.g. dph-base) to
# PACKAGES_STAGE2. But not 'libraries/dph' itself (it doesn't have a cabal
# file). Since it does have a ghc.mk file, we add it to BUILD_DIRS here.
BUILD_DIRS += $(wildcard libraries/dph)
endif
endif

BUILD_DIRS += libraries/integer-gmp/gmp
BUILD_DIRS += utils/haddock
BUILD_DIRS += utils/haddock/doc
BUILD_DIRS += compiler
BUILD_DIRS += utils/hsc2hs
BUILD_DIRS += utils/ghc-pkg
BUILD_DIRS += utils/testremove
BUILD_DIRS += utils/ghctags
BUILD_DIRS += utils/check-api-annotations
BUILD_DIRS += utils/dll-split
BUILD_DIRS += utils/ghc-cabal
BUILD_DIRS += utils/hpc
BUILD_DIRS += utils/runghc
BUILD_DIRS += ghc
BUILD_DIRS += utils/mkUserGuidePart
BUILD_DIRS += docs/users_guide
BUILD_DIRS += utils/count_lines
BUILD_DIRS += utils/compare_sizes
ifeq "$(Windows_Host)" "NO"
BUILD_DIRS += iserv
endif

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

ifeq "$(CLEANING)" "YES"
# Don't exclude any BUILD_DIRS when cleaning. When you for example build
# haddock once, but later set HADDOCK_DOCS back to NO, then 'make clean'
# should still clean the haddock directory.
else # CLEANING
ifeq "$(BINDIST)" "YES"
BUILD_DIRS := $(filter-out utils/mkdirhier,$(BUILD_DIRS))
BUILD_DIRS := $(filter-out utils/genprimopcode,$(BUILD_DIRS))
BUILD_DIRS := $(filter-out bindisttest,$(BUILD_DIRS))
BUILD_DIRS := $(filter-out utils/genapply,$(BUILD_DIRS))
BUILD_DIRS := $(filter-out utils/mkUserGuidePart,$(BUILD_DIRS))
endif
ifeq "$(HADDOCK_DOCS)" "NO"
BUILD_DIRS := $(filter-out utils/haddock,$(BUILD_DIRS))
BUILD_DIRS := $(filter-out utils/haddock/doc,$(BUILD_DIRS))
endif
ifeq "$(BUILD_SPHINX_HTML) $(BUILD_SPHINX_PDF)" "NO NO NO"
# Don't to build this little utility if we're not building the User's Guide.
BUILD_DIRS := $(filter-out utils/mkUserGuidePart,$(BUILD_DIRS))
endif
ifeq "$(Windows_Host)" "NO"
BUILD_DIRS := $(filter-out utils/touchy,$(BUILD_DIRS))
endif
ifeq "$(GhcUnregisterised)" "YES"
BUILD_DIRS := $(filter-out driver/split,$(BUILD_DIRS))
endif
ifeq "$(GhcWithInterpreter)" "NO"
# runghc is just GHCi in disguise
BUILD_DIRS := $(filter-out utils/runghc,$(BUILD_DIRS))
endif
ifneq "$(INTEGER_LIBRARY)" "integer-gmp"
BUILD_DIRS := $(filter-out libraries/integer-gmp/gmp,$(BUILD_DIRS))
endif
ifneq "$(CrossCompiling) $(Stage1Only)" "NO NO"
# See Note [No stage2 packages when CrossCompiling or Stage1Only].
# See Note [Stage1Only vs stage=1] in mk/config.mk.in.
BUILD_DIRS := $(filter-out utils/haddock,$(BUILD_DIRS))
BUILD_DIRS := $(filter-out utils/haddock/doc,$(BUILD_DIRS))
BUILD_DIRS := $(filter-out utils/ghctags,$(BUILD_DIRS))
BUILD_DIRS := $(filter-out utils/check-api-annotations,$(BUILD_DIRS))
BUILD_DIRS := $(filter-out utils/mkUserGuidePart,$(BUILD_DIRS))
endif
endif # CLEANING

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)

# We need this extra dependency when building our own libffi, because
# GHCi.FFI.hs #includes ffi.h
ifneq "$(UseSystemLibFFI)" "YES"
libraries/ghci/dist-install/build/GHCi/FFI.hs : $(libffi_HEADERS)
endif

# ----------------------------------------------
# Per-package compiler flags
#
# If you want to add per-package compiler flags, see `mk/warnings.mk`.

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

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

# -----------------------------------------------------------------------------
# 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))" ""
$(shell "$(GHC_PKG)" init $(BOOTSTRAPPING_CONF))
endif
endif

$(eval $(call clean-target,root,bootstrapping_conf,$(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)))
# ghc-pkg, unlike other utils that we build with the stage0 compiler (TODO: is
# this really true?), depends on several boot packages (e.g. Cabal and
# ghc-boot). They need to be configured before ghc-pkg, so we add a
# dependency between their package-data.mk files. See also Note
# [Dependencies between package-data.mk files].
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

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

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

# -----------------------------------------------------------------------------
# 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) $$(genprimopcode_INPLACE) \
                          | $$(dir $$@)/.
	"$(genprimopcode_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_libexec_scripts
ifeq "$(HADDOCK_DOCS)" "YES"
install: install_docs
endif

define installLibsTo
# $1 = libraries to install
# $2 = directory to install to
#
# The .dll case calls STRIP_CMD explicitly, instead of `install -s`, because
# on Win64, "install -s" calls a strip that doesn't understand 64bit binaries.
# For some reason, this means the DLLs end up non-executable, which means
# executables that use them just segfault.
	$(INSTALL_DIR) $2
	for i in $1; do \
		case $$i in \
		  *.a) \
		    $(INSTALL_DATA) $(INSTALL_OPTS) $$i $2; \
		    $(RANLIB_CMD) $2/`basename $$i` ;; \
		  *.dll) \
		    $(INSTALL_PROGRAM) $(INSTALL_OPTS) $$i $2 ; \
		    $(STRIP_CMD) $2/`basename $$i` ;; \
		  *.so) \
		    $(INSTALL_SHLIB) $(INSTALL_OPTS) $$i $2 ;; \
		  *.dylib) \
		    $(INSTALL_SHLIB) $(INSTALL_OPTS) $$i $2;; \
		  *) \
		    $(INSTALL_DATA) $(INSTALL_OPTS) $$i $2; \
		esac; \
	done
endef

install_bins: $(INSTALL_BINS) $(INSTALL_SCRIPTS)
	$(INSTALL_DIR) "$(DESTDIR)$(bindir)"
	for i in $(INSTALL_BINS); do \
		$(INSTALL_PROGRAM) $(INSTALL_BIN_OPTS) $$i "$(DESTDIR)$(bindir)" ;  \
	done
ifneq "$(INSTALL_SCRIPTS)" ""
	for i in $(INSTALL_SCRIPTS); do \
		$(INSTALL_SCRIPT) $(INSTALL_OPTS) $$i "$(DESTDIR)$(bindir)" ;  \
	done
endif

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

install_libexecs:  $(INSTALL_LIBEXECS)
ifneq "$(INSTALL_LIBEXECS)" ""
	$(INSTALL_DIR) "$(DESTDIR)$(ghclibexecdir)/bin"
	for i in $(INSTALL_LIBEXECS); do \
		$(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.
ifeq "$(Windows_Host)" "NO"
	"$(MV)" "$(DESTDIR)$(ghclibexecdir)/bin/ghc-stage$(INSTALL_GHC_STAGE)" "$(DESTDIR)$(ghclibexecdir)/bin/ghc"
endif
endif

install_libexec_scripts: $(INSTALL_LIBEXEC_SCRIPTS)
ifneq "$(INSTALL_LIBEXEC_SCRIPTS)" ""
	$(INSTALL_DIR) "$(DESTDIR)$(ghclibexecdir)/bin"
	for i in $(INSTALL_LIBEXEC_SCRIPTS); do \
		$(INSTALL_SCRIPT) $(INSTALL_OPTS) $$i "$(DESTDIR)$(ghclibexecdir)/bin"; \
	done
endif

install_docs: $(INSTALL_DOCS)
	$(INSTALL_DIR) "$(DESTDIR)$(docdir)"
ifneq "$(INSTALL_DOCS)" ""
	for i in $(INSTALL_DOCS); do \
		$(INSTALL_DOC) $(INSTALL_OPTS) $$i "$(DESTDIR)$(docdir)"; \
	done
endif
	$(INSTALL_DIR) "$(DESTDIR)$(docdir)/html"
	$(INSTALL_DOC) $(INSTALL_OPTS) docs/index.html "$(DESTDIR)$(docdir)/html"
ifneq "$(INSTALL_LIBRARY_DOCS)" ""
	$(INSTALL_DIR) "$(DESTDIR)$(docdir)/html/libraries"
	for i in $(INSTALL_LIBRARY_DOCS); do \
		$(INSTALL_DOC) $(INSTALL_OPTS) $$i "$(DESTDIR)$(docdir)/html/libraries/"; \
	done
	$(INSTALL_DATA) $(INSTALL_OPTS) libraries/prologue.txt "$(DESTDIR)$(docdir)/html/libraries/"
	$(INSTALL_SCRIPT) $(INSTALL_OPTS) libraries/gen_contents_index "$(DESTDIR)$(docdir)/html/libraries/"
endif
ifneq "$(INSTALL_HTML_DOC_DIRS)" ""
# We need to filter out the directories so install doesn't choke on them
	for i in $(INSTALL_HTML_DOC_DIRS); do \
		$(INSTALL_DIR) "$(DESTDIR)$(docdir)/html/`basename $$i`"; \
		for f in $$i/*; do \
			if test -f $$f; then \
				$(INSTALL_DOC) $(INSTALL_OPTS) "$$f" "$(DESTDIR)$(docdir)/html/`basename $$i`"; \
			fi \
		done \
	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