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#-----------------------------------------------------------------------------
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#
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#  This is the Makefile for the runtime-system stuff.
#  This stuff is written in C (and cannot be written in Haskell).
#
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#  .c  files are vanilla C,
#  .hc files are "Haskellized-C", compiled using the C compiler and
#      (possibly) the assembly-mangler.  The GHC driver script
#      knows how to compile this stuff.
#
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#  Other sorta independent, compile-once subdirs are:
#	gmp		-- GNU multi-precision library (for Integer)

#-----------------------------------------------------------------------------
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# Preamble
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TOP=..

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# Set UseGhcForCc: this causes the fptools build system to use a different
# set of suffix rules for compiling C code, using $(HC) rather than $(CC)
# and prepending "-optc" to $(CC_OPTS).  NB. must be done before including
# boilerplate.mk below.
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UseGhcForCc = YES
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include $(TOP)/mk/boilerplate.mk

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PACKAGE = rts

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HC=$(GHC_INPLACE)

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# -----------------------------------------------------------------------------
# RTS ways
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WAYS=$(GhcLibWays) $(GhcRTSWays)
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ifneq "$(findstring debug, $(way))" ""
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GhcRtsHcOpts=
GhcRtsCcOpts=-g
endif

# -----------------------------------------------------------------------------
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# Tells the build system not to add various Haskellish options to $(SRC_HC_OPTS)
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NON_HS_PACKAGE = YES
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# grab sources from these subdirectories
ALL_DIRS = hooks parallel
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ifeq "$(HOSTPLATFORM)" "i386-unknown-mingw32"
ALL_DIRS += win32
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else
ALL_DIRS += posix
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endif

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ifneq "$(DLLized)" "YES"
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EXCLUDED_SRCS += RtsDllMain.c
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else
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EXCLUDED_SRCS += Main.c
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endif

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# This file ends up being empty unless we're building for a powerpc
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# or darwin system, and it is reported that Solaris ld chokes on it when
# building HSrts.o.
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ifeq "$(findstring $(TargetArch_CPP), powerpc powerpc64)" ""
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ifeq "$(findstring $(TargetOS_CPP), darwin)" ""
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EXCLUDED_SRCS += AdjustorAsm.S
endif
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endif
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EXCLUDED_SRCS += parallel/SysMan.c

# The build system doesn't give us these
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CMM_SRCS = $(filter-out AutoApply%.cmm, $(wildcard *.cmm)) $(EXTRA_CMM_SRCS)
CMM_OBJS = $(patsubst %.cmm,%.$(way_)o, $(CMM_SRCS))
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CLEAN_FILES += $(CMM_OBJS)
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# Override the default $(LIBOBJS) (defaults to $(HS_OBJS))
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LIBOBJS = $(C_OBJS) $(CMM_OBJS)
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SplitObjs=NO
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H_FILES = $(wildcard ../includes/*.h) $(wildcard *.h)

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#-----------------------------------------------------------------------------
# Flags for compiling RTS .c and .hc files

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# gcc provides lots of useful warnings if you ask it.
# This is a pretty good list to start with - use a # to comment out
# any you don't like.
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WARNING_OPTS += -Wall 
WARNING_OPTS += -W
WARNING_OPTS += -Wstrict-prototypes 
WARNING_OPTS += -Wmissing-prototypes 
WARNING_OPTS += -Wmissing-declarations
WARNING_OPTS += -Winline
WARNING_OPTS += -Waggregate-return
#WARNING_OPTS += -Wpointer-arith
WARNING_OPTS += -Wbad-function-cast
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#WARNING_OPTS += -Wcast-align
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#WARNING_OPTS += -Wnested-externs
#WARNING_OPTS += -Wshadow
#WARNING_OPTS += -Wcast-qual
#WARNING_OPTS += -Wno-unused 
#WARNING_OPTS += -Wredundant-decls 
#WARNING_OPTS += -Wconversion

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STANDARD_OPTS += -I../includes -I. -Iparallel
# COMPILING_RTS is only used when building Win32 DLL support.
STANDARD_OPTS += -DCOMPILING_RTS
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# HC_OPTS is included in both .c and .cmm compilations, whereas CC_OPTS is
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# only included in .c compilations.  HC_OPTS included the WAY_* opts, which
# must be included in both types of compilations.

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SRC_CC_OPTS += $(WARNING_OPTS)
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SRC_CC_OPTS += $(STANDARD_OPTS)
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SRC_CC_OPTS += $(GhcRtsCcOpts)
SRC_HC_OPTS += $(GhcRtsHcOpts)
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ifneq "$(DLLized)" "YES"
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SRC_HC_OPTS += -static
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endif
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# SRC_HC_OPTS += -fPIC
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RtsMessages_CC_OPTS += -DProjectVersion=\"$(ProjectVersion)\"

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ifeq "$(way)" "mp"
SRC_HC_OPTS += -I$$PVM_ROOT/include
endif

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# If -DDEBUG is in effect, adjust package conf accordingly..
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ifneq "$(strip $(filter -optc-DDEBUG,$(GhcRtsHcOpts)))" ""
PACKAGE_CPP_OPTS += -DDEBUG
endif

ifeq "$(HaveLibMingwEx)" "YES"
PACKAGE_CPP_OPTS += -DHAVE_LIBMINGWEX
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endif

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ifeq "$(DotnetSupport)" "YES"

# 
# Would like to just use SUBDIRS here, but need to
# descend into dotnet/ earlier than that.
#
all ::
	$(MAKE) -C dotnet all

# But use SUBDIRS for other recursive targets.
SUBDIRS += dotnet

LIBOBJS += dotnet/Invoke.o
endif

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# Suppress uninitialized variable warnings for GC.c
GC_CC_OPTS 	+= -Wno-uninitialized

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#-----------------------------------------------------------------------------
# Include the Front panel code?

# we need GTK+ for the front panel
ifneq "$(GTK_CONFIG)" ""
ifeq "$(GhcRtsWithFrontPanel)" "YES"
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SRC_HC_OPTS 		+= `$(GTK_CONFIG) --cflags` -optc-DRTS_GTK_FRONTPANEL
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VisCallbacks_CC_OPTS 	+= -Wno-unused
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SRC_MKDEPENDC_OPTS	+= `$(GTK_CONFIG) --cflags`
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else # GhcRtsWithFrontPanel
EXCLUDED_SRCS		+= $(wildcard Vis*.c)
endif
else # GTK_CONFIG
EXCLUDED_SRCS		+= $(wildcard Vis*.c)
endif
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#-----------------------------------------------------------------------------
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# make depend setup
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SRC_MKDEPENDC_OPTS += -I. -I../includes

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# Hack: we define every way-related option here, so that we get (hopefully)
# a superset of the dependencies.  To do this properly, we should generate
# a different set of dependencies for each way.  Further hack: PROFILING and
# TICKY_TICKY can't be used together, so we omit TICKY_TICKY for now.
SRC_MKDEPENDC_OPTS += -DPROFILING -DTHREADED_RTS -DDEBUG

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# -----------------------------------------------------------------------------
# The auto-generated apply code

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# We want a slightly different version for the unregisterised way, so we make
# AutoApply on a per-way basis (eg. AutoApply_p.cmm).

AUTO_APPLY_CMM = AutoApply$(_way).cmm
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ifneq "$(BootingFromHc)" "YES"
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$(AUTO_APPLY_CMM): $(GHC_GENAPPLY)
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	@$(RM) $@
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	$(GHC_GENAPPLY) $(if $(filter $(way), u debug_u), -u) >$@
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endif
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EXTRA_CMM_SRCS += $(AUTO_APPLY_CMM)
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CLEAN_FILES += $(AUTO_APPLY_CMM)
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# -----------------------------------------------------------------------------
#
#  Building DLLs is only supported on mingw32 at the moment.
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#
ifeq "$(DLLized)" "YES"
SRC_BLD_DLL_OPTS += -lHS_imp_stub -lgmp_imp

# It's not included in the DLL, but we need to compile it up separately.
all :: Main.dll_o
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# Need an import library containing the symbols the RTS uses from the Prelude.
# So, to avoid bootstrapping trouble, we build one containing just the syms
# we need. Weirdly named to avoid clashing later on when compiling the contents
# of ghc/lib/..
#
# Note: if you do change the name of the Prelude DLL, the "--dllname <nm>.dll"
# below will need to be updated as well.
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$(DLL_PEN)/HSrts$(_way).dll :: libHS_imp_stub.a
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libHS_imp_stub.a :
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	dlltool --output-lib libHS_imp_stub.a --def HSprel.def --dllname HSstd.dll
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endif
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# -----------------------------------------------------------------------------
# Compile GMP only if we don't have it already
#
# We use GMP's own configuration stuff, because it's all rather hairy
# and not worth re-implementing in our Makefile framework.

ifneq "$(HaveLibGmp)" "YES"
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ifneq "$(HaveFrameworkGMP)" "YES"
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boot ::
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	if [ -f gmp/config.status ]; then \
	   cd gmp && CC=$(WhatGccIsCalled) ./config.status; \
        else \
	   cd gmp && CC=$(WhatGccIsCalled) ./configure --enable-shared=no \
		        --host=`echo $(HOSTPLATFORM) | sed 's/i[567]86/i486/g'`; \
	fi
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# Slight cheatage here to pass host as target, but x-compilation isn't supported by ghc.
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ifeq "$(way)" ""
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all :: gmp/libgmp.a

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ifeq "$(DLLized)" "YES"
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all :: $(DLL_PEN)/gmp.dll
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$(DLL_PEN)/gmp.dll:
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	$(MAKE) -C gmp gmp.dll
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	$(MV) gmp/gmp.dll $(DLL_PEN)
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endif
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endif
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install :: gmp/libgmp.a

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ifeq "$(way)" ""
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clean distclean maintainer-clean ::
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	-$(MAKE) -C gmp MAKEFLAGS= $@
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INSTALL_LIBS += gmp/libgmp.a
endif
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endif
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gmp/libgmp.a ::
	$(MAKE) -C gmp MAKEFLAGS=
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	@$(CP) gmp/.libs/libgmp.a gmp
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	@$(RANLIB) gmp/libgmp.a
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endif

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CLEAN_FILES += gmp/libgmp.a

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#-----------------------------------------------------------------------------
#
# Building the GUM SysMan
#

ifeq "$(way)" "mp"
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all :: parallel/SysMan
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ifdef solaris2_TARGET_OS
__socket_libs = -lsocket -lnsl
else
__socket_libs =
endif

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parallel/SysMan : parallel/SysMan.mp_o parallel/LLComms.mp_o RtsUtils.mp_o RtsFlags.mp_o
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	$(RM) $@
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	gcc -o $@ parallel/SysMan.mp_o parallel/LLComms.mp_o -L$$PVM_ROOT/lib/$$PVM_ARCH -lgpvm3 -lpvm3 $(__socket_libs)
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CLEAN_FILES  += parallel/SysMan.mp_o parallel/SysMan
INSTALL_LIBEXECS += parallel/SysMan
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endif

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#-----------------------------------------------------------------------------
# Compiling the cmm files

# ToDo: should we really include Rts.h here?  Required for GNU_ATTRIBUTE().
SRC_HC_OPTS += \
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  -I. \
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  -\#include Prelude.h \
  -\#include Rts.h \
  -\#include RtsFlags.h \
  -\#include RtsUtils.h \
  -\#include StgRun.h \
  -\#include Schedule.h \
  -\#include Printer.h \
  -\#include Sanity.h \
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  -\#include STM.h \
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  -\#include Storage.h \
  -\#include SchedAPI.h \
  -\#include Timer.h \
  -\#include ProfHeap.h \
  -\#include LdvProfile.h \
  -\#include Profiling.h \
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  -\#include OSThreads.h \
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  -\#include Apply.h \
  -\#include SMP.h
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ifeq "$(Windows)" "YES"
PrimOps_HC_OPTS += -\#include '<windows.h>' -\#include win32/AsyncIO.h
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else
PrimOps_HC_OPTS += -\#include posix/Itimer.h
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endif

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# -O3 helps unroll some loops (especially in copy() with a constant argument).
# -fno-strict-aliasing is a hack because we often mix StgPtr and StgClosure pointers
# to the same object, and gcc will assume these don't alias.  eg. it happens in
# copy() with gcc 3.4.3, the upd_evacee() assigments get moved before the object copy.
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GC_HC_OPTS += -optc-O3 -optc-fno-strict-aliasing
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# Cmm must be compiled via-C for now, because the NCG can't handle loops
SRC_HC_OPTS += -fvia-C

# We *want* type-checking of hand-written cmm.
SRC_HC_OPTS += -dcmm-lint 

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ifneq "$(BootingFromHc)" "YES"
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# .cmm files depend on all the .h files, to a first approximation.
%.$(way_)o : %.cmm $(H_FILES)
	$(HC_PRE_OPTS)
	$(HC) $(HC_OPTS) -c $< -o $@
	$(HC_POST_OPTS)

%.$(way_)hc : %.cmm $(H_FILES)
	$(HC) $(HC_OPTS) -C $< -o $@

%.$(way_)s : %.cmm $(H_FILES)
	$(HC) $(HC_OPTS) -S $< -o $@
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endif
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#-----------------------------------------------------------------------------
#
# Files to install
#
# Just libHSrts is installed uniformly across ways
#
INSTALL_LIBS += $(LIBRARY)
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ifeq "$(DLLized)" "YES"
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INSTALL_PROGS += $(DLL_NAME) gmp/gmp.dll
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INSTALL_LIBS += $(patsubst %.a,%_imp.a,$(LIBARY))
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INSTALL_LIBS += gmp/libgmp_imp.a Main.dll_o
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endif
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include $(TOP)/mk/target.mk