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# -----------------------------------------------------------------------------
#
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# (c) 2009-2013 The University of Glasgow
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#
# This file is part of the GHC build system.
#
# To understand how the build system works and how to modify it, see
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#      http://ghc.haskell.org/trac/ghc/wiki/Building/Architecture
#      http://ghc.haskell.org/trac/ghc/wiki/Building/Modifying
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#
# -----------------------------------------------------------------------------

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# ToDo List.
#
#   * remove old Makefiles, add new stubs for building in subdirs
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#     * docs/Makefile
#     * docs/storage-mgmt/Makefile
#     * docs/vh/Makefile
#     * rts/dotnet/Makefile
#     * utils/Makefile
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#   * 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.
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#   * make PACKAGES_STAGE1 generated by './configure' or './boot'?
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#   * 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#     a state where the package database is out of date, and the build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.

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

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.PHONY: default all haddock

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

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default : all

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##################################################
# 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
##################################################

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# -----------------------------------------------------------------------------
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# Catch make if it runs away into an infinite loop
ifeq      "$(MAKE_RESTARTS)" ""
else ifeq "$(MAKE_RESTARTS)" "1"
else
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$(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)
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endif

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

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

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

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

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# 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)))))"

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

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include mk/tree.mk

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

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

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ifneq "$(CLEANING)" "YES"
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ifeq "$(DYNAMIC_GHC_PROGRAMS)" "YES"
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ifeq "$(findstring dyn,$(GhcLibWays))" ""
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$(error dyn is not in $$(GhcLibWays), but $$(DYNAMIC_GHC_PROGRAMS) is YES)
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endif
else
ifeq "$(findstring v,$(GhcLibWays))" ""
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$(error v is not in $$(GhcLibWays), and $$(DYNAMIC_GHC_PROGRAMS) is not YES)
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endif
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endif
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ifeq "$(GhcProfiled)" "YES"
ifeq "$(findstring p,$(GhcLibWays))" ""
$(error p is not in $$(GhcLibWays), and $$(GhcProfiled) is YES)
endif
endif
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ifeq "$(BUILD_SPHINX_HTML)" "YES"
ifeq "$(SPHINXBUILD)" ""
$(error BUILD_SPHINX_HTML=YES, but `sphinx-build` was not found. \
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  Create a file `mk/validate.mk` containing `BUILD_SPHINX_HTML=NO` \
  (when validating), or install `sphinx-build` and rerun `./configure`. \
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  See https://ghc.haskell.org/trac/ghc/wiki/Building/Preparation)
endif
endif

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ifeq "$(BUILD_SPHINX_PDF)" "YES"
ifeq "$(XELATEX)" ""
$(error BUILD_SPHINX_PDF=YES, but `xelatex` was not found. \
  Install `xelatex`, then rerun `./configure`. \
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  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)
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endif
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endif

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ifeq "$(HADDOCK_DOCS)" "YES"
ifneq "$(CrossCompiling) $(Stage1Only)" "NO NO"
$(error Can not build haddock docs when CrossCompiling or Stage1Only. \
  Set HADDOCK_DOCS=NO in your mk/build.mk file. \
  See Note [No stage2 packages when CrossCompiling or Stage1Only])
endif
endif

ifneq "$(BUILD_SPHINX_HTML) $(BUILD_SPHINX_PDF)" "NO NO"
# The User's Guide requires mkUserGuidePart, which uses the GHC API.
ifneq "$(CrossCompiling) $(Stage1Only)" "NO NO"
$(error Can not build User's Guide when CrossCompiling or Stage1Only. \
  Set BUILD_SPHINX_HTML=NO, BUILD_SPHINX_PDF=NO in your \
  mk/build.mk file. \
  See Note [No stage2 packages when CrossCompiling or Stage1Only])
endif
endif

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endif # CLEANING

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

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

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include rules/prof.mk
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include rules/trace.mk
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include rules/library-path.mk
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include rules/add-dependency.mk
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include rules/make-command.mk
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include rules/pretty_commands.mk
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# -----------------------------------------------------------------------------
# Macros for standard targets

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

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

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$(eval $(call clean-target,root,inplace,inplace/bin inplace/lib))
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# -----------------------------------------------------------------------------
# Whether to build dependencies or not

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

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ifeq "$(CLEANING)" "YES"
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NO_INCLUDE_DEPS = YES
NO_INCLUDE_PKGDATA = YES
endif
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ifneq "$(findstring bootstrapping-files,$(MAKECMDGOALS))" ""
NO_INCLUDE_DEPS = YES
NO_INCLUDE_PKGDATA = YES
endif
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ifeq "$(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))))

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

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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
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WINDOWS_DYN_PROG_RTS := $(WINDOWS_DYN_PROG_RTS)_dyn_LIB_FILE
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# -----------------------------------------------------------------------------
# Compilation Flags

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include rules/distdir-opts.mk
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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
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include rules/cmm-objs.mk
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# -----------------------------------------------------------------------------
# Suffix rules

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# Suffix rules cause "make clean" to fail on Windows (trac #3233)
# so we don't make any when cleaning.
ifneq "$(CLEANING)" "YES"
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include rules/hs-suffix-rules-srcdir.mk
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include rules/hs-suffix-way-rules-srcdir.mk
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include rules/hs-suffix-way-rules.mk
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include rules/hi-rule.mk
include rules/c-suffix-rules.mk
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include rules/cmm-suffix-rules.mk
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endif
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# -----------------------------------------------------------------------------
# Building package-data.mk files from .cabal files

include rules/package-config.mk

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

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include rules/dependencies.mk
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include rules/build-dependencies.mk
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include rules/include-dependencies.mk
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# -----------------------------------------------------------------------------
# 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
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include rules/tags-package.mk
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include rules/foreachLibrary.mk
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# -----------------------------------------------------------------------------
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# Registering hand-written package descriptions (used in rts)
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include rules/manual-package-config.mk

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

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include rules/sphinx.mk
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# -----------------------------------------------------------------------------
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# Making bindists and sdists
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include rules/bindist.mk
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include rules/sdist-ghc-file.mk
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# -----------------------------------------------------------------------------
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# 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)" $@

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

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PACKAGES_STAGE0 = binary Cabal/Cabal hpc ghc-boot-th ghc-boot hoopl transformers template-haskell ghci
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ifeq "$(Windows_Host)" "NO"
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PACKAGES_STAGE0 += terminfo
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endif
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PACKAGES_STAGE1 += ghc-prim
PACKAGES_STAGE1 += $(INTEGER_LIBRARY)
PACKAGES_STAGE1 += base
PACKAGES_STAGE1 += filepath
PACKAGES_STAGE1 += array
PACKAGES_STAGE1 += deepseq
PACKAGES_STAGE1 += bytestring
PACKAGES_STAGE1 += containers
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ifeq "$(Windows_Target)" "YES"
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PACKAGES_STAGE1 += Win32
endif
PACKAGES_STAGE1 += time
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ifeq "$(Windows_Target)" "NO"
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PACKAGES_STAGE1 += unix
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endif
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PACKAGES_STAGE1 += directory
PACKAGES_STAGE1 += process
PACKAGES_STAGE1 += hpc
PACKAGES_STAGE1 += pretty
PACKAGES_STAGE1 += binary
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PACKAGES_STAGE1 += Cabal/Cabal
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PACKAGES_STAGE1 += ghc-boot-th
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PACKAGES_STAGE1 += ghc-boot
PACKAGES_STAGE1 += template-haskell
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PACKAGES_STAGE1 += hoopl
PACKAGES_STAGE1 += transformers
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PACKAGES_STAGE1 += ghc-compact
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ifeq "$(HADDOCK_DOCS)" "YES"
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PACKAGES_STAGE1 += xhtml
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endif

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ifeq "$(WITH_TERMINFO)" "YES"
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PACKAGES_STAGE1 += terminfo
endif
PACKAGES_STAGE1 += haskeline
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PACKAGES_STAGE1 += ghci
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# See Note [No stage2 packages when CrossCompiling or Stage1Only].
# See Note [Stage1Only vs stage=1] in mk/config.mk.in.
ifeq "$(CrossCompiling) $(Stage1Only)" "NO NO"
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define addExtraPackage
ifeq "$2" "-"
# Do nothing; this package is already handled above
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else ifeq "$2" "dph"
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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 "$$(BUILD_EXTRA_PKGS)" "YES"
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PACKAGES_STAGE2 += $1
endif
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else
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$$(error Unknown package tag: $2)
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endif
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endef
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$(eval $(call foreachLibrary,addExtraPackage))
endif
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# We install all packages that we build.
INSTALL_PACKAGES := $(addprefix libraries/,$(PACKAGES_STAGE1))
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# See Note [Stage1Only vs stage=1] in mk/config.mk.in.
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ifneq "$(Stage1Only)" "YES"
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INSTALL_PACKAGES += compiler
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endif
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INSTALL_PACKAGES += $(addprefix libraries/,$(PACKAGES_STAGE2))
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endif # CLEANING
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# -------------------------------------------
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# Note [Dependencies between package-data.mk files].
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# We cannot run ghc-cabal to configure a package until we have
# configured and registered all of its dependencies.  So the following
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# hack forces all the configure steps to happen in exactly the following order:
#
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#  $(PACKAGES_STAGE1) ghc(stage2) $(PACKAGES_STAGE2)
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#
# Ideally we should use the correct dependencies here to allow more
# parallelism, but we don't know the dependencies until we've
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# generated the package-data.mk files.
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define fixed_pkg_dep
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libraries/$1/$2/package-data.mk : $$(fixed_pkg_prev)
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fixed_pkg_prev:=libraries/$1/$2/package-data.mk
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endef

ifneq "$(BINDIST)" "YES"
fixed_pkg_prev=
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$(foreach pkg,$(PACKAGES_STAGE1),$(eval $(call fixed_pkg_dep,$(pkg),dist-install)))
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# 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)
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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)
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# 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:
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fixed_pkg_prev:=compiler/stage2/package-data.mk
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$(foreach pkg,$(PACKAGES_STAGE2),$(eval $(call fixed_pkg_dep,$(pkg),dist-install)))
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ghc/stage1/package-data.mk: compiler/stage1/package-data.mk
ghc/stage2/package-data.mk: compiler/stage2/package-data.mk
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# 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
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utils/ghctags/dist-install/package-data.mk: compiler/stage2/package-data.mk
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utils/check-api-annotations/dist-install/package-data.mk: compiler/stage2/package-data.mk
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utils/check-ppr/dist-install/package-data.mk: compiler/stage2/package-data.mk
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utils/mkUserGuidePart/dist/package-data.mk: compiler/stage2/package-data.mk
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# add the final package.conf dependency: ghc-prim depends on RTS
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libraries/ghc-prim/dist-install/package-data.mk : rts/dist/package.conf.inplace
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endif

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

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BOOT_PKG_CONSTRAINTS := \
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    $(foreach d,$(PACKAGES_STAGE0),\
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        $(foreach p,$(basename $(notdir $(wildcard libraries/$d/*.cabal))),\
            --constraint "$p == $(shell grep -i "^Version:" libraries/$d/$p.cabal | sed "s/[^0-9.]//g")"))
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# The actual .a and .so/.dll files: needed for dependencies.
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$(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)

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ifeq "$(BuildSharedLibs)" "YES"
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ALL_STAGE1_LIBS += $(foreach lib,$(PACKAGES_STAGE1),$(libraries/$(lib)_dist-install_dyn_LIB))
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endif
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BOOT_LIBS = $(foreach lib,$(PACKAGES_STAGE0),$(libraries/$(lib)_dist-boot_v_LIB))
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# Only build internal interpreter support for the stage2 ghci lib
libraries/ghci_dist-install_CONFIGURE_OPTS += --flags=ghci

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

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PRIMOPS_TXT_STAGE1 = compiler/stage1/build/primops.txt
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libraries/ghc-prim/dist-install/build/GHC/PrimopWrappers.hs : $$(genprimopcode_INPLACE) $(PRIMOPS_TXT_STAGE1) | $$(dir $$@)/.
	"$(genprimopcode_INPLACE)" --make-haskell-wrappers < $(PRIMOPS_TXT_STAGE1) >$@
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# 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
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# ----------------------------------------
# Special magic for the integer package

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

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# -----------------------------------------------------------------------------
# Include build instructions from all subdirs
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BUILD_DIRS += utils/mkdirhier
BUILD_DIRS += utils/touchy
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BUILD_DIRS += utils/unlit
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BUILD_DIRS += utils/hp2ps
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BUILD_DIRS += driver/split
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BUILD_DIRS += utils/genprimopcode
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BUILD_DIRS += driver
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BUILD_DIRS += driver/ghci
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BUILD_DIRS += driver/ghc
BUILD_DIRS += driver/haddock
BUILD_DIRS += libffi
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BUILD_DIRS += utils/deriveConstants
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BUILD_DIRS += includes
BUILD_DIRS += rts
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BUILD_DIRS += bindisttest
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BUILD_DIRS += utils/genapply
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# 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.
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ifneq "$(CLEANING)" "YES"
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# 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))
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BUILD_DIRS += $(patsubst %, libraries/%, $(PACKAGES_STAGE1))
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BUILD_DIRS += $(patsubst %, libraries/%, $(filter-out $(PACKAGES_STAGE1),$(PACKAGES_STAGE0)))
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ifeq "$(BUILD_DPH)" "YES"
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# Note: `$(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.
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BUILD_DIRS += $(wildcard libraries/dph)
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endif
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endif
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BUILD_DIRS += libraries/integer-gmp/gmp
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BUILD_DIRS += utils/haddock
BUILD_DIRS += utils/haddock/doc
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BUILD_DIRS += compiler
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BUILD_DIRS += utils/hsc2hs
BUILD_DIRS += utils/ghc-pkg
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BUILD_DIRS += utils/testremove
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BUILD_DIRS += utils/ghctags
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BUILD_DIRS += utils/check-api-annotations
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BUILD_DIRS += utils/check-ppr
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BUILD_DIRS += utils/dll-split
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BUILD_DIRS += utils/ghc-cabal
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BUILD_DIRS += utils/hpc
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BUILD_DIRS += utils/runghc
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BUILD_DIRS += ghc
BUILD_DIRS += utils/mkUserGuidePart
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BUILD_DIRS += docs/users_guide
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BUILD_DIRS += utils/count_lines
BUILD_DIRS += utils/compare_sizes
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BUILD_DIRS += iserv
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# ----------------------------------------------
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# 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
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ifeq "$(BUILD_SPHINX_HTML) $(BUILD_SPHINX_PDF)" "NO NO"
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BUILD_DIRS := $(filter-out docs/users_guide,$(BUILD_DIRS))
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# 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 := $(filter-out utils/ghctags,$(BUILD_DIRS))
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BUILD_DIRS := $(filter-out utils/check-api-annotations,$(BUILD_DIRS))
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BUILD_DIRS := $(filter-out utils/check-ppr,$(BUILD_DIRS))
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endif
endif # CLEANING
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include $(patsubst %, %/ghc.mk, $(BUILD_DIRS))
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# 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)

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# 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

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# ----------------------------------------------
# Per-package compiler flags
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#
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# If you want to add per-package compiler flags, see `mk/warnings.mk`.
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# Add $(GhcLib(Extra)HcOpts) to all package builds
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$(foreach pkg,$(PACKAGES_STAGE1) $(PACKAGES_STAGE2),$(eval libraries/$(pkg)_dist-install_HC_OPTS += $$(GhcLibHcOpts)))
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$(foreach pkg,$(PACKAGES_STAGE1) $(PACKAGES_STAGE2),$(eval libraries/$(pkg)_dist-install_EXTRA_HC_OPTS += $$(GhcLibExtraHcOpts)))
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# Add $(GhcBootLib(Extra)HcOpts) to all stage0 package builds
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$(foreach pkg,$(PACKAGES_STAGE0),$(eval libraries/$(pkg)_dist-boot_HC_OPTS += $$(GhcBootLibHcOpts)))
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$(foreach pkg,$(PACKAGES_STAGE0),$(eval libraries/$(pkg)_dist-boot_EXTRA_HC_OPTS += $$(GhcBootLibExtraHcOpts)))
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# -----------------------------------------------------------------------------
# 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"

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ifneq "$(BOOTSTRAPPING_CONF)" ""
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ifeq "$(wildcard $(BOOTSTRAPPING_CONF))" ""
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$(shell "$(GHC_PKG)" init $(BOOTSTRAPPING_CONF))
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endif
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endif
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$(eval $(call clean-target,root,bootstrapping_conf,$(BOOTSTRAPPING_CONF)))
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# register the boot packages in strict sequence, because running
# multiple ghc-pkgs in parallel doesn't work (registrations may get
# lost).
fixed_pkg_prev=
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$(foreach pkg,$(PACKAGES_STAGE0),$(eval $(call fixed_pkg_dep,$(pkg),dist-boot)))
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# 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
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# ghc-boot). They need to be configured before ghc-pkg, so we add a
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# dependency between their package-data.mk files. See also Note
# [Dependencies between package-data.mk files].
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utils/ghc-pkg/dist/package-data.mk: $(fixed_pkg_prev)
compiler/stage1/package-data.mk:    $(fixed_pkg_prev)
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endif
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ifneq "$(BINDIST)" "YES"
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# 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
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# GHCi libs, and we don't have a better way to express that dependency.
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#
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GHCI_LIBS = $(foreach lib,$(PACKAGES_STAGE1),$(libraries/$(lib)_dist-install_GHCI_LIB)) \
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	    $(compiler_stage2_GHCI_LIB)

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ifeq "$(UseArchivesForGhci)" "NO"
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ghc/stage2/build/tmp/$(ghc_stage2_PROG) : $(GHCI_LIBS)
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endif
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ifeq "$(UseArchivesForGhci)" "YES"
GHCI_lib_way = v
else
GHCI_lib_way = GHCI
endif

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

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

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

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ifeq "$(Windows_Host)" "YES"
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install : install_mingw
.PHONY: install_mingw
install_mingw : $(INPLACE_MINGW)
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	"$(CP)" -Rp $(INPLACE_MINGW) $(prefix)
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install : install_perl
.PHONY: install_perl
install_perl : $(INPLACE_PERL)
	"$(CP)" -Rp $(INPLACE_PERL) $(prefix)

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endif # Windows_Host
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ifneq "$(BINDIST)" "YES"
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$(ghc-prim-$(libraries/ghc-prim_dist-install_VERSION)_HADDOCK_FILE): \
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    libraries/ghc-prim/dist-install/build/autogen/GHC/Prim.hs
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endif # BINDIST
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libraries/ghc-prim/dist-install/build/autogen/GHC/Prim.hs: \
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                            $(PRIMOPS_TXT_STAGE1) $$(genprimopcode_INPLACE) \
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                          | $$(dir $$@)/.
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	"$(genprimopcode_INPLACE)" --make-haskell-source < $< > $@
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.PHONY: tags
tags: tags_compiler

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.PHONY: TAGS
TAGS: TAGS_compiler

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

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install: install_libs install_packages install_libexecs \
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         install_bins install_libexec_scripts
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ifeq "$(HADDOCK_DOCS)" "YES"
install: install_docs
endif
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define installLibsTo
# $1 = libraries to install
# $2 = directory to install to
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#
# 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.
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	$(INSTALL_DIR) $2
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	for i in $1; do \
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		case $$i in \
		  *.a) \
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		    $(INSTALL_DATA) $(INSTALL_OPTS) $$i $2; \
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		    $(RANLIB_CMD) $2/`basename $$i` ;; \
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		  *.dll) \
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		    $(INSTALL_PROGRAM) $(INSTALL_OPTS) $$i $2 ; \
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		    $(STRIP_CMD) $2/`basename $$i` ;; \
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		  *.so) \
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		    $(INSTALL_SHLIB) $(INSTALL_OPTS) $$i $2 ;; \
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		  *.dylib) \
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		    $(INSTALL_SHLIB) $(INSTALL_OPTS) $$i $2;; \
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		  *) \
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		    $(INSTALL_DATA) $(INSTALL_OPTS) $$i $2; \
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		esac; \
	done
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endef

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install_bins: $(INSTALL_BINS) $(INSTALL_SCRIPTS)
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	$(INSTALL_DIR) "$(DESTDIR)$(bindir)"
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	for i in $(INSTALL_BINS); do \
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		$(INSTALL_PROGRAM) $(INSTALL_BIN_OPTS) $$i "$(DESTDIR)$(bindir)" ;  \
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	done
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ifneq "$(INSTALL_SCRIPTS)" ""
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	for i in $(INSTALL_SCRIPTS); do \
		$(INSTALL_SCRIPT) $(INSTALL_OPTS) $$i "$(DESTDIR)$(bindir)" ;  \
	done
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endif
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install_libs: $(INSTALL_LIBS)
	$(call installLibsTo, $(INSTALL_LIBS), "$(DESTDIR)$(ghclibdir)")
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install_libexecs:  $(INSTALL_LIBEXECS)
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ifneq "$(INSTALL_LIBEXECS)" ""
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	$(INSTALL_DIR) "$(DESTDIR)$(ghclibexecdir)/bin"
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	for i in $(INSTALL_LIBEXECS); do \
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		$(INSTALL_PROGRAM) $(INSTALL_BIN_OPTS) $$i "$(DESTDIR)$(ghclibexecdir)/bin"; \
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	done
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# We rename ghc-stage2, so that the right program name is used in error
# messages etc.
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ifeq "$(Windows_Host)" "NO"
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	"$(MV)" "$(DESTDIR)$(ghclibexecdir)/bin/ghc-stage$(INSTALL_GHC_STAGE)" "$(DESTDIR)$(ghclibexecdir)/bin/ghc"
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endif
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endif
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install_libexec_scripts: $(INSTALL_LIBEXEC_SCRIPTS)
ifneq "$(INSTALL_LIBEXEC_SCRIPTS)" ""
	$(INSTALL_DIR) "$(DESTDIR)$(ghclibexecdir)/bin"
	for i in $(INSTALL_LIBEXEC_SCRIPTS); do \
		$(INSTALL_SCRIPT) $(INSTALL_OPTS) $$i "$(DESTDIR)$(ghclibexecdir)/bin"; \
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	done
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endif
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install_docs: $(INSTALL_DOCS)
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	$(INSTALL_DIR) "$(DESTDIR)$(docdir)"
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ifneq "$(INSTALL_DOCS)" ""
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	for i in $(INSTALL_DOCS); do \
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		$(INSTALL_DOC) $(INSTALL_OPTS) $$i "$(DESTDIR)$(docdir)"; \
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	done
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endif
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	$(INSTALL_DIR) "$(DESTDIR)$(docdir)/html"
	$(INSTALL_DOC) $(INSTALL_OPTS) docs/index.html "$(DESTDIR)$(docdir)/html"
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ifneq "$(INSTALL_LIBRARY_DOCS)" ""
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	$(INSTALL_DIR) "$(DESTDIR)$(docdir)/html/libraries"
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	for i in $(INSTALL_LIBRARY_DOCS); do \
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		$(INSTALL_DOC) $(INSTALL_OPTS) $$i "$(DESTDIR)$(docdir)/html/libraries/"; \
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	done
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	$(INSTALL_DATA) $(INSTALL_OPTS) libraries/prologue.txt "$(DESTDIR)$(docdir)/html/libraries/"
	$(INSTALL_SCRIPT) $(INSTALL_OPTS) libraries/gen_contents_index "$(DESTDIR)$(docdir)/html/libraries/"
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endif
ifneq "$(INSTALL_HTML_DOC_DIRS)" ""
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	for i in $(INSTALL_HTML_DOC_DIRS); do \
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		$(CP) -Rp $$i "$(DESTDIR)$(docdir)/html"; \
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	done
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endif
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INSTALLED_PACKAGE_CONF=$(DESTDIR)$(topdir)/package.conf.d
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# Install packages in the right order, so that ghc-pkg doesn't complain.
# Also, install ghc-pkg first.
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ifeq "$(Windows_Host)" "NO"
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INSTALLED_GHC_REAL=$(DESTDIR)$(ghclibexecdir)/bin/ghc
INSTALLED_GHC_PKG_REAL=$(DESTDIR)$(ghclibexecdir)/bin/ghc-pkg
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else
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INSTALLED_GHC_REAL=$(DESTDIR)$(bindir)/ghc.exe
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INSTALLED_GHC_PKG_REAL=$(DESTDIR)$(bindir)/ghc-pkg.exe
endif

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

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

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

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

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BIN_DIST_MK = $(BIN_DIST_PREP_DIR)/bindist.mk
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