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# To do a fresh build:
#
#   make clean
#   make boot
#   make
#
# To rebuild a particular library <package>:
#
#   make clean.library.<package>
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#   make make.library.<package>
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#
# or the following is equivalent:
#
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#   make remake.library.<package>
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#
# To add a new library to the tree, do
#
#   darcs get http://darcs.haskell.org/packages/foo
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#   [ -f foo/configure.ac ] && ( cd foo && autoreconf )
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#   make make.library.foo
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.PHONY: default_target
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default_target: all
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# make doesn't give us an easy way to get the libraries built in
# dependency order the first time, but not rebuild base (for example)
# when we want to rebuild another library later.
# So for now we just don't do anything in parallel in here.
.NOTPARALLEL:

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# Ideally we'd just include something to give us variables
# for paths and arguments to tools etc, and those set in mk/build.mk.
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TOP=..
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include $(TOP)/mk/boilerplate.mk
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include $(TOP)/mk/cabal-flags.mk
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ifeq "$(stage)" ""
stage := 1
endif

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DO_STAGE_1_LIBS := NO
DO_STAGE_2_LIBS := NO
ifeq "$(stage)" "1"
DO_STAGE_1_LIBS := YES
endif
ifeq "$(stage)" "2"
DO_STAGE_2_LIBS := YES
endif
ifneq "$(filter install clean,$(MAKECMDGOALS))" ""
DO_STAGE_1_LIBS := YES
DO_STAGE_2_LIBS := YES
endif

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# Any libraries listed here should also be in ../packages

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SUBDIRS :=

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ifeq "$(DO_STAGE_1_LIBS)" "YES"
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SUBDIRS += ghc-prim $(INTEGER_LIBRARY) base syb base3-compat array packedstring
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SUBDIRS += containers bytestring old-locale old-time filepath 
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ifeq "$(GhcLibsWithUnix)" "YES"
SUBDIRS += unix
endif
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ifeq "$(Windows)" "YES"
SUBDIRS += $(wildcard Win32)
endif
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SUBDIRS += directory process pretty hpc template-haskell editline Cabal random haskell98
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# Set GhcBootLibs=YES from the command line to work with just the libraries
# needed to bootstrap GHC.
ifneq "$(GhcBootLibs)" "YES"
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SUBDIRS += $(wildcard regex-base)
SUBDIRS += $(wildcard regex-posix)
SUBDIRS += $(wildcard regex-compat)
SUBDIRS += $(wildcard parsec)
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SUBDIRS += $(wildcard haskell-src)
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SUBDIRS += $(wildcard html)
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SUBDIRS += $(wildcard network)
SUBDIRS += $(wildcard QuickCheck)
SUBDIRS += $(wildcard HUnit)
SUBDIRS += $(wildcard mtl)
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SUBDIRS += $(wildcard time)
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SUBDIRS += $(wildcard stm)
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SUBDIRS += $(wildcard xhtml)
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SUBDIRS += $(wildcard parallel)
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endif
endif

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ifeq "$(DO_STAGE_2_LIBS)" "YES"
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ifneq "$(GhcBootLibs)" "YES"
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ifneq "$(wildcard dph)" ""
SUBDIRS += dph/dph-base
SUBDIRS += dph/dph-prim-interface
SUBDIRS += dph/dph-prim-seq
SUBDIRS += dph/dph-prim-par
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SUBDIRS += dph/dph-seq
SUBDIRS += dph/dph-par
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endif
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endif
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endif
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# -----------------------------------------------------------------------------

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empty=
space=$(empty) $(empty)
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# -----------------------------------------------------------------------------

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ifeq "$(ghc_ge_609)" "YES"
GhcLibHcOpts += -fno-warn-deprecated-flags
endif

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IFBUILDABLE=ifBuildable/ifBuildable $(FPTOOLS_TOP_ABS)/packages

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ifneq "$(DOING_BIN_DIST)" "YES"

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CONFIGURE_OPTS =
CONFIGURE_STAMP_EXTRAS :=
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ifneq "$(findstring $(space)p$(space), $(space)$(GhcLibWays)$(space))" ""
CONFIGURE_OPTS += --enable-library-profiling
CONFIGURE_STAMP_EXTRAS := $(CONFIGURE_STAMP_EXTRAS)-profiling
endif

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ifeq "$(BuildSharedLibs)" "YES"
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CONFIGURE_OPTS += --enable-shared
CONFIGURE_STAMP_EXTRAS := $(CONFIGURE_STAMP_EXTRAS)-shared
endif

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ifeq "$(SplitObjs)" "YES"
CONFIGURE_OPTS += --enable-split-objs
CONFIGURE_STAMP_EXTRAS := $(CONFIGURE_STAMP_EXTRAS)-splitting
endif

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ifeq "$(HSCOLOUR_SRCS)" "YES"
CONFIGURE_OPTS += --with-hscolour="$(HSCOLOUR)"
endif

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.PHONY: subdirs

subdirs:
	@echo $(SUBDIRS)

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HERE_ABS=$(FPTOOLS_TOP_ABS)/libraries
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CABAL_GHC_FLAGS = -Wall
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BOOTSTRAPPING_FLAGS = $(CABAL_GHC_FLAGS) -DCABAL_VERSION=$(CABAL_VERSION) -odir $(HERE_ABS)/bootstrapping -hidir $(HERE_ABS)/bootstrapping -i$(HERE_ABS)/Cabal -i$(HERE_ABS)/filepath -i$(HERE_ABS)/hpc
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.PHONY: boot

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boot: ifBuildable/ifBuildable cabal-bin bootstrapping.conf
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cabal-bin: cabal-bin.hs
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	-mkdir bootstrapping
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	$(GHC) $(BOOTSTRAPPING_FLAGS) --make cabal-bin -o cabal-bin

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bootstrapping.conf: cabal-bin
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	echo "[]" > $@.tmp
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	-cd extensible-exceptions && $(CABAL) clean     --distpref=dist-bootstrapping
	cd extensible-exceptions && $(CABAL) configure --distpref=dist-bootstrapping --with-compiler=$(GHC) --with-hc-pkg=$(GHC_PKG) --package-db=$(HERE_ABS)/$@.tmp
	cd extensible-exceptions && $(CABAL) build     --distpref=dist-bootstrapping
	cd extensible-exceptions && $(CABAL) install   --distpref=dist-bootstrapping --inplace
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	-cd filepath && $(CABAL) clean     --distpref=dist-bootstrapping
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	cd filepath && $(CABAL) configure --distpref=dist-bootstrapping --with-compiler=$(GHC) --with-hc-pkg=$(GHC_PKG) --package-db=$(HERE_ABS)/$@.tmp
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	cd filepath && $(CABAL) build     --distpref=dist-bootstrapping
	cd filepath && $(CABAL) install   --distpref=dist-bootstrapping --inplace
	-cd Cabal    && $(CABAL) clean     --distpref=dist-bootstrapping
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	cd Cabal    && $(CABAL) configure --distpref=dist-bootstrapping --with-compiler=$(GHC) --with-hc-pkg=$(GHC_PKG) --package-db=$(HERE_ABS)/$@.tmp
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	cd Cabal    && $(CABAL) build     --distpref=dist-bootstrapping
	cd Cabal    && $(CABAL) install   --distpref=dist-bootstrapping --inplace
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	-cd hpc    && $(CABAL) clean     --distpref=dist-bootstrapping
	cd hpc    && $(CABAL) configure --distpref=dist-bootstrapping --with-compiler=$(GHC) --with-hc-pkg=$(GHC_PKG) --package-db=$(HERE_ABS)/$@.tmp
	cd hpc    && $(CABAL) build     --distpref=dist-bootstrapping
	cd hpc    && $(CABAL) install   --distpref=dist-bootstrapping --inplace
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	mv $@.tmp $@
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ifBuildable/ifBuildable: ifBuildable.hs
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	-$(RM) -rf ifBuildable
	mkdir ifBuildable
	$(CP) ifBuildable.hs ifBuildable/
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ifeq "$(stage)" "2"
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	cd ifBuildable && ../$(HC) -Wall --make ifBuildable -o ifBuildable
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else
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	cd ifBuildable && $(GHC) -Wall --make ifBuildable -o ifBuildable
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endif
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.PHONY: all build configure

all: build
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.PHONY: rebuild.library.%
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.PHONY: remake.library.%
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$(foreach SUBDIR,$(SUBDIRS),rebuild.library.$(SUBDIR)):\
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rebuild.library.%: clean.library.% build.library.%

$(foreach SUBDIR,$(SUBDIRS),remake.library.$(SUBDIR)):\
remake.library.%: clean.library.% make.library.%
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# NB. we're depending on make chasing dependencies from left to right here.
# This bit goes wrong with 'make -j'.
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build: $(foreach SUBDIR,$(SUBDIRS),make.library.$(SUBDIR))
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configure: $(foreach SUBDIR,$(SUBDIRS), \
             stamp/configure.library.build$(CONFIGURE_STAMP_EXTRAS).$(SUBDIR))

.PHONY: build.library.%
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.PHONY: make.library.%
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# We should depend on %/%.cabal here (and in other rules), but make
# makes that difficult.

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ALL_CONFIGURE_FLAGS = \
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               $(INSTALL_DIRS_CONFIGURE_FLAGS) \
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               $(USE_STAGE$(stage)_CONFIGURE_FLAGS) \
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               $(COMMON_CONFIGURE_FLAGS) \
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	           --haddock-options="--use-contents=../index.html \
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	                              --use-index=../doc-index.html" \
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	           $(CONFIGURE_OPTS)
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stamp/configure.library.build$(CONFIGURE_STAMP_EXTRAS).dph/dph-par: \
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    dph/dph-par
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stamp/configure.library.build$(CONFIGURE_STAMP_EXTRAS).dph/dph-seq: \
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    dph/dph-seq
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dph/%:
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	$(MAKE) -C dph $*

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$(foreach SUBDIR,$(SUBDIRS), \
		  stamp/configure.library.build$(CONFIGURE_STAMP_EXTRAS).$(SUBDIR)): \
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stamp/configure.library.build$(CONFIGURE_STAMP_EXTRAS).%: cabal-bin
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	-$(RM) -f stamp/configure.library.*.$* $*/unbuildable
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	$(MKDIRHIER) `dirname $@`
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	( cd $* && $(CABAL) configure $(ALL_CONFIGURE_FLAGS) ) \
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	      && touch $@ || touch $*/unbuildable
# We don't touch $@ if configure failed as we would prefer to try
# configuring it next time round, rather than assuming it'll still fail.
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# This is particularly important for bootlibs, where failure means the
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# build dies!
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# Build the library using 'make'
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# We re-run 'setup makefile' each time, just in case any preprocessing
# needs to be done.  However, we're careful not to overwrite GNUmakefile
# if it hasn't changed, so that dependency-generation isn't forced
# every time.
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$(foreach SUBDIR,$(SUBDIRS),make.library.$(SUBDIR)):\
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make.library.%: stamp/configure.library.build$(CONFIGURE_STAMP_EXTRAS).% \
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                cabal-bin ifBuildable/ifBuildable
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	if $(IFBUILDABLE) $*; then \
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	  cd $* && \
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	  cmp -s $(MAKEFILE_LOCAL) Makefile.local || cp $(MAKEFILE_LOCAL) .; \
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	  mv GNUmakefile GNUmakefile.tmp; \
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	  $(CABAL) makefile -f GNUmakefile; \
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	  cmp -s GNUmakefile GNUmakefile.tmp && mv GNUmakefile.tmp GNUmakefile; \
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	  $(MAKE) $(MFLAGS) && \
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	  $(CABAL) register --inplace; \
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	fi
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MAKEFILE_LOCAL = $(FPTOOLS_TOP_ABS)/libraries/Makefile.local

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# Build the library using 'setup build' (not the default)
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$(foreach SUBDIR,$(SUBDIRS),build.library.$(SUBDIR)):\
build.library.%: stamp/configure.library.build$(CONFIGURE_STAMP_EXTRAS).% \
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                 cabal-bin ifBuildable/ifBuildable
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	if $(IFBUILDABLE) $*; then \
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	  cd $* && \
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	  $(CABAL) build $(BUILD_FLAGS); \
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	  $(CABAL) register --inplace; \
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	fi
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.PHONY: doc html

html: doc
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# No docs for compat libraries for now.
DOC_SUBDIRS = $(filter-out %-compat, $(SUBDIRS))

doc: $(foreach SUBDIR,$(DOC_SUBDIRS),doc.library.$(SUBDIR))
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	sh gen_contents_index --inplace
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# Making hyperlinked source only works if we have hscolour
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ifeq "$(HSCOLOUR_SRCS)" "YES"
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CABAL_HADDOCK_FLAGS += --hyperlink-source
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endif
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CABAL_HADDOCK_FLAGS += --with-haddock=$(FPTOOLS_TOP_ABS)/utils/haddock/install-inplace/bin/haddock
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$(foreach SUBDIR,$(DOC_SUBDIRS),doc.library.$(SUBDIR)):\
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doc.library.%: stamp/configure.library.build$(CONFIGURE_STAMP_EXTRAS).% \
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               cabal-bin ifBuildable/ifBuildable
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	if $(IFBUILDABLE) $*; then \
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	  cd $* && $(CABAL) haddock --html-location='../$$pkg' \
	                            $(CABAL_HADDOCK_FLAGS); \
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	fi
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ifneq "$(HSCOLOUR)" ""
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# We use */src rather than $*/src due to the $(INTEGER_LIBRARY)/integer
# mismatch
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# XXX We also need to check that the directory exists, as e.g. dph disables
# haddock, so the directory doesn't get made. We should remove this once
# we can always haddock everything.
	if $(IFBUILDABLE) $* && [ -d $*/dist/doc/html/*/src/ ]; then cp hscolour.css $*/dist/doc/html/*/src/; fi
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endif
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.PHONY: maintainer-clean distclean clean clean.library.%
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maintainer-clean: clean
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distclean: clean

clean: $(foreach SUBDIR,$(SUBDIRS),clean.library.$(SUBDIR))
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	-cd extensible-exceptions && $(CABAL) clean --distpref=dist-bootstrapping
	-cd filepath              && $(CABAL) clean --distpref=dist-bootstrapping
	-cd Cabal                 && $(CABAL) clean --distpref=dist-bootstrapping
	-cd hpc                   && $(CABAL) clean --distpref=dist-bootstrapping
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	$(RM) -rf bootstrapping
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	$(RM) -f bootstrapping.conf     bootstrapping.conf.old
	$(RM) -f bootstrapping.conf.tmp bootstrapping.conf.tmp.old
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	$(RM) -f cabal-bin cabal-bin.exe
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	$(RM) -rf ifBuildable
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	$(RM) -f libraries.txt index.html doc-index.html doc-index*.html
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	$(RM) -f haddock* *.gif
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	$(RM) -rf stamp/*
ifneq "$(wildcard dph)" ""
	$(MAKE) -C dph clean
endif
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maintainer-clean distclean:
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	$(RM) $(foreach lib, $(SUBDIRS), $(lib)/.depend $(lib)/.depend.bak)

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$(foreach SUBDIR,$(SUBDIRS),clean.library.$(SUBDIR)): \
clean.library.%:
	$(RM) -f stamp/configure.library.*.$* $*/unbuildable
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	-cd $* && $(CABAL) clean
	$(RM) -f $*/Setup $*/Setup.exe $*/Setup.hi $*/Setup.o
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	$(RM) $*/GNUmakefile $*/Makefile.local
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endif

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

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.PHONY: install install-docs install.library.%
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install: $(foreach SUBDIR,$(SUBDIRS),install.library.$(SUBDIR))
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ifeq "$(HADDOCK_DOCS)" "YES"
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	$(INSTALL_DIR)                                                     $(DESTDIR)$(html_installed_root)
	$(INSTALL_DATA)   index.html doc-index*.html                       $(DESTDIR)$(html_installed_root)
	$(INSTALL_SCRIPT) gen_contents_index                               $(DESTDIR)$(html_installed_root)
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	$(INSTALL_DATA)   prologue.txt                                     $(DESTDIR)$(html_installed_root)
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	# Hacks:
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	$(INSTALL_DATA)   base/dist/doc/html/*/*.css $(DESTDIR)$(html_installed_root)
	$(INSTALL_DATA)   base/dist/doc/html/*/*.js $(DESTDIR)$(html_installed_root)
	$(INSTALL_DATA)   base/dist/doc/html/*/*.gif $(DESTDIR)$(html_installed_root)
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endif
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# Cabal doesn't let us ask to install docs only, so do nothing here
install-docs:
	@:

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# Ideally this would depend on a stamp/build.library.%, but if it does
# then we can't change the libraries and then just rerun make.
# Thus if you install without building then it will just break.
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# prefix and (on Windows) htmldir use $topdir when configuring, so we
# need to tell installPackage the real path to use when installing.

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# We also need to pass all the other directories in, as they can be
# overridden when installing a bindist.

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$(foreach SUBDIR,$(SUBDIRS),install.library.$(SUBDIR)): \
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install.library.%: ifBuildable/ifBuildable
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	if $(IFBUILDABLE) $*; then \
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	  cd $* && \
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	  $(INSTALL_PACKAGE) install '$(GHC_PKG_INSTALL_PROG)' '$(DESTDIR)$(datadir)/package.conf' '$(DESTDIR)' '$(prefix)' '$(iprefix)' '$(ibindir)' '$(ilibdir)' '$(ilibexecdir)' '$(idynlibdir)' '$(idatadir)' '$(idocdir)' '$(ihtmldir)' '$(ihaddockdir)' ; \
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	fi
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.PHONY: binary-dist binary-dist.library.%

BIN_DIST_LIBDIR=$(BIN_DIST_DIR)/libraries

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binary-dist: $(foreach SUBDIR,$(SUBDIRS),binary-dist.library.$(SUBDIR))
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ifeq "$(WHERE_AM_I)" ""
	echo "I don't know where I am" >&2
	exit 1
endif
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	echo $(WHERE_AM_I)/Makefile >> $(BIN_DIST_LIST)
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# XXX This needs to be changed: This ifBuildable is built with the
# bootstrapping compiler, so isn't OS X friendly. It should be made into
# a Cabal package if we keep it. However, once we drop extralibs we can
# probably remove it anyway.
	echo $(WHERE_AM_I)/ifBuildable/ifBuildable >> $(BIN_DIST_LIST)
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	for FILE in dph/dph-prim-interface/interface/*.h dph/dph/LICENSE; do if [ -f $$FILE ]; then echo $(WHERE_AM_I)/$$FILE >> $(BIN_DIST_LIST); fi; done
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ifeq "$(HADDOCK_DOCS)" "YES"
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	for FILE in gen_contents_index prologue.txt index.html doc-index*.html; do echo $(WHERE_AM_I)/$$FILE >> $(BIN_DIST_LIST); done
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endif
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$(foreach SUBDIR,$(SUBDIRS),binary-dist.library.$(SUBDIR)): \
binary-dist.library.%:
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	if $(IFBUILDABLE) $*; then \
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	  $(MAKE) -C $* -f Makefile.local binary-dist BINDIST_EXTRAS="$*.cabal LICENSE $*.buildinfo unbuildable" WHERE_AM_I=$(WHERE_AM_I)/$*; \
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	fi
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# Ignore some doc targets that we don't support
# The root recurses into us when these targets are made
.PHONY: html-no-chunks chm HxS fo dvi ps pdf
html-no-chunks chm HxS fo dvi ps pdf:
	@: