llvm/Makefile.rules

#===-- Makefile.rules - Common make rules for LLVM ---------*- Makefile -*--===#
#
#                     The LLVM Compiler Infrastructure
#
# This file was developed by the LLVM research group and is distributed under
# the University of Illinois Open Source License. See LICENSE.TXT for details.
# 
#===------------------------------------------------------------------------===#
#
# This file is included by all of the LLVM makefiles.  For details on how to use
# it properly, please see the document MakefileGuide.html in the docs directory.
#
#===-----------------------------------------------------------------------====

################################################################################
# TARGETS: Define standard targets that can be invoked
################################################################################

#--------------------------------------------------------------------
# Define the various target sets
#--------------------------------------------------------------------
RecursiveTargets := all clean clean-all check install uninstall
LocalTargets     := all-local clean-local clean-all-local check-local \
                    install-local printvars uninstall-local
TopLevelTargets  := dist dist-check dist-clean tags dist-gzip dist-bzip2 \
                    dist-zip
UserTargets      := $(RecursiveTargets) $(LocalTargets) $(TopLevelTargets)
InternalTargets  := preconditions distdir dist-hook

################################################################################
# INITIALIZATION: Basic things the makefile needs
################################################################################

#--------------------------------------------------------------------
# Set the VPATH so that we can find source files.
#--------------------------------------------------------------------
VPATH=$(BUILD_SRC_DIR)

#--------------------------------------------------------------------
# Reset the list of suffixes we know how to build
#--------------------------------------------------------------------
.SUFFIXES:
.SUFFIXES: .c .cpp .h .hpp .y .l .lo .o .a .bc .td .ps .dot 
.SUFFIXES: $(SHLIBEXT) $(SUFFIXES)

#--------------------------------------------------------------------
# Mark all of these targets as phony to avoid implicit rule search
#--------------------------------------------------------------------
.PHONY: $(UserTargets) $(InternalTargets)

#--------------------------------------------------------------------
# Make sure all the user-target rules are double colon rules and 
# they are defined first.
#--------------------------------------------------------------------

$(UserTargets)::

################################################################################
# PRECONDITIONS: that which must be built/checked first
################################################################################

SrcMakefiles       := $(filter %Makefile %Makefile.tests %Makefile.JIT,\
                      $(wildcard $(BUILD_SRC_DIR)/Makefile*))
ObjMakefiles       := $(subst $(BUILD_SRC_DIR),$(BUILD_OBJ_DIR),$(SrcMakefiles))
ConfigureScript    := $(LLVM_SRC_ROOT)/configure
ConfigStatusScript := $(LLVM_OBJ_ROOT)/config.status
MakefileConfigIn   := $(LLVM_SRC_ROOT)/Makefile.config.in
MakefileConfig     := $(LLVM_OBJ_ROOT)/Makefile.config
PreConditions      := $(ConfigStatusScript) $(MakefileConfig) $(ObjMakefiles)

preconditions : $(PreConditions)

#------------------------------------------------------------------------
# Make sure the BUILT_SOURCES are built first
#------------------------------------------------------------------------
$(filter-out clean clean-local,UserTargets):: $(BUILT_SOURCES)

clean-local::
ifneq ($(strip $(BUILT_SOURCES)),)
	-$(Verb) $(RM) -f $(BUILT_SOURCES)
endif

$(BUILT_SOURCES) : $(ObjMakefiles)

#------------------------------------------------------------------------
# Make sure we're not using a stale configuration
#------------------------------------------------------------------------
.PRECIOUS: $(ConfigStatusScript)
$(ConfigStatusScript): $(ConfigureScript)
	$(Echo) Reconfiguring with $<
	$(Verb) cd $(BUILD_OBJ_ROOT) && \
	  $(ConfigStatusScript) --recheck $(ConfigureScriptFLAGS) && \
	  $(ConfigStatusScript)

#------------------------------------------------------------------------
# Make sure the configuration makefile is up to date
#------------------------------------------------------------------------
$(MakefileConfig): $(MakefileConfigIn) $(ConfigStatusScript)
	$(Echo) Regenerating $@
	$(Verb) cd $(LLVM_OBJ_ROOT) ; $(ConfigStatusScript) Makefile.config

#------------------------------------------------------------------------
# If the Makefile in the source tree has been updated, copy it over into the
# build tree. But, only do this if the source and object makefiles differ
#------------------------------------------------------------------------
ifneq ($(BUILD_OBJ_DIR),$(BUILD_SRC_DIR))

Makefile: $(BUILD_SRC_DIR)/Makefile
	$(Echo) "Updating Makefile"
	$(Verb) $(MKDIR) $(@D)
	$(Verb) cp -f $< $@

# Copy the Makefile.* files unless we're in the root directory which avoids
# the copying of Makefile.config.in or other things that should be explicitly
# taken care of.
$(BUILD_OBJ_DIR)/Makefile% : $(BUILD_SRC_DIR)/Makefile%
	@case '$?' in \
          *Makefile.rules) ;; \
          *.in) ;; \
          *) $(Echo) "Updating $(@F)" ; \
	     $(MKDIR) $(@D) ; \
	     cp -f $< $@ ;; \
	esac
         
endif

#------------------------------------------------------------------------
# Set up the basic dependencies
#------------------------------------------------------------------------
$(UserTargets):: $(PreConditions)

all:: all-local
check:: check-local
clean:: clean-local 
clean-all:: clean-local clean-all-local
install:: install-local
uninstall:: uninstall-local
check-local:: all-local
install-local:: all-local 

###############################################################################
# VARIABLES: Set up various variables based on configuration data
###############################################################################

#--------------------------------------------------------------------
# Variables derived from configuration we are building
#--------------------------------------------------------------------

ifdef ENABLE_PROFILING
  BuildMode := Profile
  CXX.Flags := -O3 -DNDEBUG -felide-constructors -finline-functions -pg
  C.Flags   := -O3 -DNDEBUG -pg
  LD.Flags  := -O3 -DNDEBUG -pg 
else
  ifdef ENABLE_OPTIMIZED
    BuildMode := Release
    CXX.Flags  := -O3 -DNDEBUG -finline-functions -felide-constructors -fomit-frame-pointer
    C.Flags    := -O3 -DNDEBUG -fomit-frame-pointer
    LD.Flags   := -O3 -DNDEBUG 
  else
    BuildMode := Debug
    CXX.Flags := -g -D_DEBUG 
    C.Flags   := -g -D_DEBUG
    LD.Flags  := -g -D_DEBUG 
    KEEP_SYMBOLS := 1
  endif
endif

CXX.Flags += $(CXXFLAGS)
C.Flags   += $(CFLAGS)
CPP.Flags += $(CPPFLAGS)
LD.Flags  += $(LDFLAGS)
AR.Flags  := cru
LibTool.Flags := --tag=CXX

#--------------------------------------------------------------------
# Directory locations
#--------------------------------------------------------------------
ObjDir      := $(BUILD_OBJ_DIR)/$(BuildMode)
LibDir      := $(BUILD_OBJ_ROOT)/$(BuildMode)/lib
ToolDir     := $(BUILD_OBJ_ROOT)/$(BuildMode)/bin
ExmplDir    := $(BUILD_OBJ_ROOT)/$(BuildMode)/examples
LLVMLibDir  := $(LLVM_OBJ_ROOT)/$(BuildMode)/lib
LLVMToolDir := $(LLVM_OBJ_ROOT)/$(BuildMode)/bin
LExmplDir   := $(LLVM_OBJ_ROOT)/$(BuildMode)/examples

#--------------------------------------------------------------------
# Full Paths To Compiled Tools and Utilities
#--------------------------------------------------------------------
EchoCmd  := $(ECHO) llvm[$(MAKELEVEL)]:
Echo     := @$(EchoCmd)
ifndef LIBTOOL
LIBTOOL  := $(LLVM_OBJ_ROOT)/mklib
endif
ifndef LLVMAS
LLVMAS   := $(LLVMToolDir)/llvm-as$(EXEEXT)
endif
ifndef BURG
BURG     := $(LLVMToolDir)/burg$(EXEEXT)
endif
ifndef TBLGEN
TBLGEN   := $(LLVMToolDir)/tblgen$(EXEEXT)
endif
ifndef GCCAS
GCCAS    := $(LLVMToolDir)/gccas$(EXEEXT)
endif
ifndef GCCLD
GCCLD    := $(LLVMToolDir)/gccld$(EXEEXT)
endif
ifndef LLVMGCC
LLVMGCC  := PATH=$(LLVMToolDir):$(PATH) $(LLVMGCCDIR)/bin/gcc
endif
ifndef LLVMGXX
LLVMGXX  := PATH=$(LLVMToolDir):$(PATH) $(LLVMGCCDIR)/bin/g++
endif

# Need a better way to compute this.
LLVMGCCLibDir := $(dir $(shell $(LLVMGCC) -print-file-name=libgcc.a))/

#--------------------------------------------------------------------
# Adjust to user's request
#--------------------------------------------------------------------

# Adjust LIBTOOL flags for shared libraries, or not.
ifndef SHARED_LIBRARY
  LibTool.Flags += --tag=disable-shared
else
  LD.Flags += -rpath $(LibDir)
endif

ifdef TOOL_VERBOSE
  C.Flags += -v
  CXX.Flags += -v
  LD.Flags += -v
  BCLinkLib.Flags += -v
  VERBOSE := 1
endif

# Adjust settings for verbose mode
ifndef VERBOSE
  Verb := @
  LibTool.Flags += --silent
  AR.Flags += >/dev/null 2>/dev/null
  ConfigureScriptFLAGS += >$(BUILD_OBJ_DIR)/configure.out 2>&1
else
  ConfigureScriptFLAGS := 
endif

# By default, strip symbol information from executable
ifndef KEEP_SYMBOLS
  Strip := $(PLATFORMSTRIPOPTS)
  StripWarnMsg := "(without symbols)"
endif

# Adjust linker flags for building an executable
ifdef TOOLNAME
ifdef EXAMPLE_TOOL
  LD.Flags += -rpath $(ExmplDir) -export-dynamic
else
  LD.Flags += -rpath $(ToolDir) -export-dynamic
endif
endif

#----------------------------------------------------------
# Options To Invoke Tools
#----------------------------------------------------------

CompileCommonOpts := -Wall -W -Wwrite-strings -Wno-unused

LD.Flags  += -L$(LibDir) -L$(LLVMLibDir)
CPP.Flags += -I$(BUILD_OBJ_DIR) \
	    -I$(BUILD_SRC_DIR) \
	    -I$(BUILD_SRC_ROOT)/include \
	    -I$(BUILD_OBJ_ROOT)/include \
	    -I$(LLVM_OBJ_ROOT)/include \
	    -I$(LLVM_SRC_ROOT)/include \
	    -D_GNU_SOURCE -D__STDC_LIMIT_MACROS

Compile.C     = $(CC) $(CPP.Flags) $(CompileCommonOpts) -c $(C.Flags)
LTCompile.C   = $(LIBTOOL) $(LibTool.Flags) --mode=compile $(Compile.C)
BCCompile.C   = $(LLVMGCC) $(CPP.Flags) $(CompileCommonOpts) $(C.Flags) -c
Compile.CXX   = $(CXX) $(CPP.Flags) $(CompileCommonOpts) $(CXX.Flags) -c
LTCompile.CXX = $(LIBTOOL) $(LibTool.Flags) --mode=compile $(Compile.CXX)
BCCompile.CXX = $(LLVMGXX) $(CPP.Flags) $(CompileCommonOpts) $(CXX.Flags) -c
Link          = $(LIBTOOL) $(LibTool.Flags) --mode=link $(CXX) $(CPP.Flags) \
	        $(CompileCommonOpts) $(LD.Flags) $(Strip)
Relink        = $(LIBTOOL) $(LibTool.Flags) --mode=link $(CXX) $(CPP.Flags) \
                $(CompileCommonOpts)
BCLinkLib     = $(LLVMGCC) -shared -nostdlib $(BCLinkLib.Flags)
LTInstall     = $(LIBTOOL) $(LibTool.Flags) --mode=install $(INSTALL)
Burg          = $(BURG) -I $(BUILD_SRC_DIR)
TableGen      = $(TBLGEN) -I $(BUILD_SRC_DIR)
Archive       = $(AR) $(AR.Flags)
LArchive      = $(ToolDir)/llvm-ar rcsf
ifdef RANLIB
Ranlib        = $(RANLIB)
else
Ranlib        = ranlib
endif

#----------------------------------------------------------
# Get the list of source files
#----------------------------------------------------------
ifndef SOURCES
  Sources := $(notdir $(wildcard $(BUILD_SRC_DIR)/*.cpp \
             $(BUILD_SRC_DIR)/*.cc $(BUILD_SRC_DIR)/*.c $(BUILD_SRC_DIR)/*.y \
             $(BUILD_SRC_DIR)/*.l))
else
  Sources := $(SOURCES)
endif

ifdef BUILT_SOURCES
Sources += $(filter %.cpp %.c %.cc %.y %.l,$(BUILT_SOURCES))
endif

#----------------------------------------------------------
# Types of objects that can be built from sources
#----------------------------------------------------------
BaseNameSources := $(sort $(basename $(Sources)))
ObjectsO  := $(BaseNameSources:%=$(ObjDir)/%.o)
ObjectsLO := $(BaseNameSources:%=$(ObjDir)/%.lo)
ObjectsBC := $(BaseNameSources:%=$(ObjDir)/%.bc)

###############################################################################
# DIRECTORIES: Handle recursive descent of directory structure
###############################################################################

#---------------------------------------------------------
# Provide rules to make install dirs. This must be early
# in the file so they get built before dependencies
#---------------------------------------------------------

$(bindir):
	$(Verb) $(MKDIR) $(bindir)

$(libdir):
	$(Verb) $(MKDIR) $(libdir)

$(bytecode_libdir):
	$(Verb) $(MKDIR) $(bytecode_libdir)

$(sysconfdir):
	$(Verb) $(MKDIR) $(sysconfdir)

# To create other directories, as needed, and timestamp their creation
%/.dir:
	$(Verb) $(MKDIR) $* > /dev/null
	$(Verb) $(DATE) > $@

.PRECIOUS: $(ObjDir)/.dir $(LibDir)/.dir $(ToolDir)/.dir $(ExmplDir)/.dir
.PRECIOUS: $(LLVMLibDir)/.dir $(LLVMToolDir)/.dir $(LLVMExmplDir)/.dir

#---------------------------------------------------------
# Handle the DIRS options for sequential construction
#---------------------------------------------------------

SubDirs := 
ifdef DIRS
SubDirs += $(DIRS)
$(RecursiveTargets)::
	$(Verb) for dir in $(DIRS); do \
	  if [ ! -f $$dir/Makefile ]; then \
	    $(MKDIR) $$dir; \
	    cp $(BUILD_SRC_DIR)/$$dir/Makefile $$dir/Makefile; \
	  fi; \
	  ($(MAKE) -C $$dir $@ ) || exit 1; \
	done
endif

#---------------------------------------------------------
# Handle the EXPERIMENTAL_DIRS options ensuring success
# after each directory is built.
#---------------------------------------------------------
ifdef EXPERIMENTAL_DIRS
$(RecursiveTargets)::
	$(Verb) for dir in $(EXPERIMENTAL_DIRS); do \
	  if [ ! -f $$dir/Makefile ]; then \
	    $(MKDIR) $$dir; \
	    cp $(BUILD_SRC_DIR)/$$dir/Makefile $$dir/Makefile; \
	  fi; \
	  ($(MAKE) -C $$dir $@ ) || exit 0; \
	done
endif

#---------------------------------------------------------
# Handle the PARALLEL_DIRS options for parallel construction
#---------------------------------------------------------
ifdef PARALLEL_DIRS

SubDirs += $(PARALLEL_DIRS)

# Unfortunately, this list must be maintained if new 
# recursive targets are added.
all      :: $(addsuffix /.makeall      ,$(PARALLEL_DIRS))
clean    :: $(addsuffix /.makeclean    ,$(PARALLEL_DIRS))
clean-all:: $(addsuffix /.makeclean-all,$(PARALLEL_DIRS))
check    :: $(addsuffix /.makecheck    ,$(PARALLEL_DIRS))
install  :: $(addsuffix /.makeinstall  ,$(PARALLEL_DIRS))
uninstall:: $(addsuffix /.makeuninstall,$(PARALLEL_DIRS))

Parallel_Targets := $(foreach T,$(RecursiveTargets),%/.make$(T))

$(Parallel_Targets) :
	$(Verb) if [ ! -f $(@D)/Makefile ]; then \
	  $(MKDIR) $(@D); \
	  cp $(BUILD_SRC_DIR)/$(@D)/Makefile $(@D)/Makefile; \
	fi; \
	$(MAKE) -C $(@D) $(subst $(@D)/.make,,$@)
endif

#---------------------------------------------------------
# Handle the OPTIONAL_DIRS options for directores that may
# or may not exist.
#---------------------------------------------------------
ifdef OPTIONAL_DIRS

SubDirs += $(OPTIONAL_DIRS)

$(RecursiveTargets)::
	$(Verb) for dir in $(OPTIONAL_DIRS); do \
	  if [ -d $(BUILD_SRC_DIR)/$$dir ]; then\
	    if [ ! -f $$dir/Makefile ]; then \
	      $(MKDIR) $$dir; \
	      cp $(BUILD_SRC_DIR)/$$dir/Makefile $$dir/Makefile; \
	    fi; \
	    ($(MAKE) -C$$dir $@ ) || exit 1; \
	  fi \
	done
endif

#---------------------------------------------------------
# Handle the CONFIG_FILES options
#---------------------------------------------------------
ifdef CONFIG_FILES

install-local:: $(sysconfdir) $(CONFIG_FILES)
	$(Echo) Installing Configuration Files To $(sysconfdir)
	$(Verb)for file in $(CONFIG_FILES); do \
          if test -f $(BUILD_OBJ_DIR)/$${file} ; then \
            $(INSTALL) $(BUILD_OBJ_DIR)/$${file} $(sysconfdir) ; \
          elif test -f $(BUILD_SRC_DIR)/$${file} ; then \
            $(INSTALL) $(BUILD_SRC_DIR)/$${file} $(sysconfdir) ; \
          else \
            $(ECHO) Error: cannot find config file $${file}. ; \
          fi \
	done

uninstall-local::
	$(Echo) Uninstalling Configuration Files From $(sysconfdir)
	$(Verb)for file in $(CONFIG_FILES); do \
	  $(RM) -f $(sysconfdir)/$${file} ; \
	done

endif

###############################################################################
# Library Build Rules: Four ways to build a library
###############################################################################


# if we're building a library ...
ifdef LIBRARYNAME

# Make sure there isn't any extranous whitespace on the LIBRARYNAME option
LIBRARYNAME := $(strip $(LIBRARYNAME))
LibName.LA := $(LibDir)/lib$(LIBRARYNAME).la
LibName.A  := $(LibDir)/lib$(LIBRARYNAME).a
LibName.O  := $(LibDir)/$(LIBRARYNAME).o
LibName.BC := $(LibDir)/lib$(LIBRARYNAME).bc

#---------------------------------------------------------
# Shared Library Targets:
#   If the user asked for a shared library to be built
#   with the SHARED_LIBRARY variable, then we provide
#   targets for building them.
#---------------------------------------------------------
ifdef SHARED_LIBRARY

all-local:: $(LibName.LA)

$(LibName.LA): $(BUILT_SOURCES) $(ObjectsLO) $(LibDir)/.dir
	$(Echo) Linking $(BuildMode) Shared Library $(LIBRARYNAME)$(SHLIBEXT)
	$(Verb) $(Link) -o $@ $(ObjectsLO)
	$(Verb) $(LTInstall) $@ $(LibDir)

clean-local::
ifneq ($(strip $(LibName.LA)),)
	-$(Verb) $(RM) -f $(LibName.LA)
endif

DestSharedLib = $(libdir)/lib$(LIBRARYNAME)$(SHLIBEXT)

install-local:: $(DestSharedLib)

$(DestSharedLib): $(libdir) $(LibName.LA)
	$(Echo) Installing $(BuildMode) Shared Library $(DestSharedLib)
	$(Verb) $(LTInstall) $(LibName.LA) $(DestSharedLib)
	$(Verb) $(LIBTOOL) --finish $(libdir)

uninstall-local:: 
	$(Echo) Uninstalling $(BuildMode) Shared Library $(DestSharedLib)
	-$(Verb) $(RM) -f $(libdir)/lib$(LIBRARYNAME).*

endif

#---------------------------------------------------------
# Bytecode Library Targets:
#   If the user asked for a bytecode library to be built
#   with the BYTECODE_LIBRARY variable, then we provide 
#   targets for building them.
#---------------------------------------------------------
ifdef BYTECODE_LIBRARY

ifdef EXPORTED_SYMBOL_LIST
  BCLinkLib += -Xlinker -internalize-public-api-list=$(EXPORTED_SYMBOL_LIST)
else
  ifdef EXPORTED_SYMBOL_FILE
    BCLinkLib += -Xlinker -internalize-public-api-file=$(EXPORTED_SYMBOL_FILE)
  else
    BCLinkLib += -Xlinker -disable-internalize
  endif
endif

all-local:: $(LibName.BC)

$(LibName.BC): $(BUILT_SOURCES) $(ObjectsBC) $(LibDir)/.dir $(GCCLD)
	$(Echo) Linking $(BuildMode) Bytecode Library $(notdir $@)
	$(Verb) $(BCLinkLib) -o $@ $(ObjectsBC)

clean-local::
ifneq ($(strip $(LibName.BC)),)
	-$(Verb) $(RM) -f $(LibName.BC)
endif

DestBytecodeLib = $(bytecode_libdir)/lib$(LIBRARYNAME).bc

install-local:: $(DestBytecodeLib)

$(DestBytecodeLib): $(bytecode_libdir) $(LibName.BC) 
	$(Echo) Installing $(BuildMode) Bytecode Library $(DestBytecodeLib)
	$(Verb) $(INSTALL) $(LibName.BC) $@

uninstall-local::
	$(Echo) Uninstalling $(BuildMode) Bytecode Library $(DestBytecodeLib)
	-$(Verb) $(RM) -f $(DestBytecodeLib)

endif

#---------------------------------------------------------
# ReLinked Library Targets:
#   If the user didn't explicitly forbid building a 
#   relinked then we provide targets for building them.
#---------------------------------------------------------
ifndef DONT_BUILD_RELINKED

all-local:: $(LibName.O)

$(LibName.O): $(BUILT_SOURCES) $(ObjectsO) $(LibDir)/.dir
	$(Echo) Linking $(BuildMode) Object Library $(notdir $@)
	$(Verb) $(Relink) -o $@ $(ObjectsO)

clean-local::
ifneq ($(strip $(LibName.O)),)
	-$(Verb) $(RM) -f $(LibName.O)
endif

DestRelinkedLib = $(libdir)/$(LIBRARYNAME).o

install-local:: $(DestRelinkedLib)

$(DestRelinkedLib): $(libdir) $(LibName.O)
	$(Echo) Installing $(BuildMode) Object Library $(DestRelinkedLib)
	$(Verb) $(LTInstall) $(LibName.O) $(DestRelinkedLib)

uninstall-local::
	$(Echo) Uninstalling $(BuildMode) Object Library $(DestRelinkedLib)
	-$(Verb) $(RM) -f $(DestRelinkedLib)

endif

#---------------------------------------------------------
# Archive Library Targets:
#   If the user wanted a regular archive library built, 
#   then we provide targets for building them.
#---------------------------------------------------------
ifdef BUILD_ARCHIVE

all-local:: $(LibName.A)

$(LibName.A): $(BUILT_SOURCES) $(ObjectsO) $(LibDir)/.dir
	$(Echo) Building $(BuildMode) Archive Library $(notdir $@)
	-$(Verb) $(RM) -f $@
	$(Verb) $(Archive) $@ $(ObjectsO)
	$(Verb) $(Ranlib) $@

clean-local::
ifneq ($(strip $(LibName.A)),)
	-$(Verb) $(RM) -f $(LibName.A)
endif

DestArchiveLib := $(libdir)/lib$(LIBRARYNAME).a

install-local:: $(DestArchiveLib)

$(DestArchiveLib): $(libdir) $(LibName.A)
	$(Echo) Installing $(BuildMode) Archive Library $(DestArchiveLib)
	$(Verb) $(MKDIR) $(libdir)
	$(Verb) $(LTInstall) $(LibName.A) $(DestArchiveLib)

uninstall-local::
	$(Echo) Uninstalling $(BuildMode) Archive Library $(DestArchiveLib)
	-$(Verb) $(RM) -f $(DestArchiveLib)

endif

# endif LIBRARYNAME
endif 

###############################################################################
# Tool Build Rules: Build executable tool based on TOOLNAME option
###############################################################################

ifdef TOOLNAME

#---------------------------------------------------------
# Handle the special "JIT" value for LLVM_LIBS which is a
# shorthand for a bunch of libraries that get the correct
# JIT support for a tool that runs JIT.
#---------------------------------------------------------
ifeq ($(LLVMLIBS),JIT)

# Make sure we can get our own symbols in the tool
Link += -dlopen self

# Generic JIT libraries
JIT_LIBS := LLVMInterpreter LLVMJIT LLVMCodeGen LLVMExecutionEngine

# You can enable the X86 JIT on a non-X86 host by setting the flag
# ENABLE_X86_JIT on the make command line. If not, it will still be
# enabled automagically on an X86 host.
ifeq ($(ARCH), x86)
  ENABLE_X86_JIT = 1
endif

# What the X86 JIT requires
ifdef ENABLE_X86_JIT
  JIT_LIBS  += LLVMX86 LLVMSelectionDAG
endif

# You can enable the SparcV9 JIT on a non-SparcV9 host by setting the flag
# ENABLE_SPARCV9_JIT on the make command line. If not, it will still be
# enabled automagically on an SparcV9 host.
ifeq ($(ARCH), Sparc)
  ENABLE_SPARCV9_JIT = 1
endif

# What the Sparc JIT requires
ifdef ENABLE_SPARCV9_JIT
  JIT_LIBS += LLVMSparcV9 LLVMSparcV9ModuloSched LLVMSparcV9InstrSched \
              LLVMSparcV9LiveVar LLVMInstrumentation.a LLVMProfilePaths \
	      LLVMBCWriter LLVMTransforms.a LLVMipo.a LLVMipa.a \
	      LLVMDataStructure.a LLVMSparcV9RegAlloc
endif

# You can enable the PowerPC JIT on a non-PowerPC host by setting the flag
# ENABLE_PPC_JIT on the make command line. If not, it will still be
# enabled automagically on an PowerPC host.
ifeq ($(ARCH), PowerPC)
  ENABLE_PPC_JIT = 1
endif

# What the PowerPC JIT requires
ifdef ENABLE_PPC_JIT
  JIT_LIBS  += LLVMPowerPC
endif

LLVMLIBS := $(JIT_LIBS) LLVMScalarOpts LLVMAnalysis.a LLVMTransformUtils.a \
             LLVMBCReader LLVMCore LLVMSupport.a LLVMTarget.a LLVMbzip2 \
	     LLVMSystem.a $(PLATFORMLIBDL)
endif

#---------------------------------------------------------
# Set up variables for building a tool.
#---------------------------------------------------------
ifdef EXAMPLE_TOOL
ToolBuildPath   := $(ExmplDir)/$(TOOLNAME)$(EXEEXT)
else
ToolBuildPath   := $(ToolDir)/$(TOOLNAME)$(EXEEXT)
endif
ProjLibsOptions := $(patsubst %.a.o, -l%, $(addsuffix .o, $(USEDLIBS)))
ProjLibsOptions := $(patsubst %.o, $(LibDir)/%.o,  $(ProjLibsOptions))
LLVMLibsOptions := $(patsubst %.a.o, -l%, $(addsuffix .o, $(LLVMLIBS)))
LLVMLibsOptions := $(patsubst %.o, $(LLVMLibDir)/%.o, $(LLVMLibsOptions))
ProjUsedLibs    := $(patsubst %.a.o, lib%.a, $(addsuffix .o, $(USEDLIBS)))
LLVMUsedLibs    := $(patsubst %.a.o, lib%.a, $(addsuffix .o, $(LLVMLIBS)))
ProjLibsPaths   := $(addprefix $(LibDir)/,$(ProjUsedLibs))
LLVMLibsPaths   := $(addprefix $(LLVMLibDir)/,$(LLVMUsedLibs))

#---------------------------------------------------------
# Tell make that we need to rebuild subdirectories before 
# we can link the tool. This affects things like LLI which 
# has library subdirectories.
#---------------------------------------------------------
$(ToolBuildPath): $(addsuffix /.makeall, $(PARALLEL_DIRS))

#---------------------------------------------------------
# Provide targets for building the tools
#---------------------------------------------------------
all-local:: $(ToolBuildPath)

clean-local::
ifneq ($(strip $(ToolBuildPath)),)
	-$(Verb) $(RM) -f $(ToolBuildPath)
endif

ifdef EXAMPLE_TOOL
$(ToolBuildPath): $(ExmplDir)/.dir
else
$(ToolBuildPath): $(ToolDir)/.dir
endif

$(ToolBuildPath): $(BUILT_SOURCES) $(ObjectsO) $(ProjLibsPaths) $(LLVMLibsPaths)
	$(Echo) Linking $(BuildMode) executable $(TOOLNAME) $(StripWarnMsg)
	$(Verb) $(Link) -o $@ $(TOOLLINKOPTS) $(ObjectsO) $(ProjLibsOptions) \
          $(LLVMLibsOptions) $(ExtraLibs) $(TOOLLINKOPTSB)
	$(Echo) ======= Finished Linking $(BuildMode) Executable $(TOOLNAME) $(StripWarnMsg) 

DestTool = $(bindir)/$(TOOLNAME)

install-local:: $(DestTool)

$(DestTool): $(bindir) $(ToolBuildPath)
	$(Echo) Installing $(BuildMode) $(DestTool)
	$(Verb) $(INSTALL) $(ToolBuildPath) $(DestTool)

uninstall-local::
	$(Echo) Uninstalling $(BuildMode) $(DestTool)
	-$(Verb) $(RM) -f $(DestTool)

endif

###############################################################################
# Object Build Rules: Build object files based on sources 
###############################################################################

# Provide rule sets for when dependency generation is enabled
ifndef DISABLE_AUTO_DEPENDENCIES

#---------------------------------------------------------
# Create .lo files in the ObjDir directory from the .cpp and .c files...
#---------------------------------------------------------
ifdef SHARED_LIBRARY

$(ObjDir)/%.lo $(ObjDir)/%.o: %.cpp $(ObjDir)/.dir
	$(Echo) "Compiling $*.cpp for $(BuildMode) build (PIC)"
	$(Verb) if $(LTCompile.CXX) -MD -MT $@ -MP -MF $(ObjDir)/$*.LACXXd $< -o $@ ; \
	then $(MV) -f "$(ObjDir)/$*.LACXXd" "$(ObjDir)/$*.d"; \
	else $(RM) -f "$(ObjDir)/$*.LACXXd"; exit 1; fi

$(ObjDir)/%.lo $(ObjDir)/%.o: %.c $(ObjDir)/.dir 
	$(Echo) "Compiling $*.c for $(BuildMode) build (PIC)"
	$(Verb) if $(LTCompile.C) -MD -MT $@ -MP -MF $(ObjDir)/$*.LACd $< -o $@ ; \
	then $(MV) -f "$(ObjDir)/$*.LACd" "$(ObjDir)/$*.d"; \
	else $(RM) -f "$(ObjDir)/$*.LACd"; exit 1; fi

#---------------------------------------------------------
# Create .o files in the ObjDir directory from the .cpp and .c files...
#---------------------------------------------------------
else

$(ObjDir)/%.o: %.cpp $(ObjDir)/.dir
	$(Echo) "Compiling $*.cpp for $(BuildMode) build"
	$(Verb) if $(Compile.CXX) -MD -MT $@ -MP -MF $(ObjDir)/$*.CXXd $< -o $@ ; \
	then $(MV) -f "$(ObjDir)/$*.CXXd" "$(ObjDir)/$*.d"; \
	else $(RM) -f "$(ObjDir)/$*.CXXd"; exit 1; fi

$(ObjDir)/%.o: %.c $(ObjDir)/.dir
	$(Echo) "Compiling $*.c for $(BuildMode) build"
	$(Verb) if $(Compile.C) -MD -MT $@ -MP -MF $(ObjDir)/$*.Cd $< -o $@ ; \
	then $(MV) -f "$(ObjDir)/$*.Cd" "$(ObjDir)/$*.d"; \
	else $(RM) -f "$(ObjDir)/$*.Cd"; exit 1; fi

endif

#---------------------------------------------------------
# Create .bc files in the ObjDir directory from .cpp and .c files...
#---------------------------------------------------------
$(ObjDir)/%.bc: %.cpp $(ObjDir)/.dir $(GCCAS)
	$(Echo) "Compiling $*.cpp for $(BuildMode) build (bytecode)"
	$(Verb) if $(BCCompile.CXX) -MD -MT $@ -MP -MF "$(ObjDir)/$*.BCCXXd" $< -o $@ ; \
	then $(MV) -f "$(ObjDir)/$*.BCCXXd" "$(ObjDir)/$*.d"; \
	else $(RM) -f "$(ObjDir)/$*.BCCXXd"; exit 1; fi

$(ObjDir)/%.bc: %.c $(ObjDir)/.dir $(GCCAS)
	$(Echo) "Compiling $*.c for $(BuildMode) build (bytecode)"
	$(Verb) if $(BCCompile.C) -MD -MT $@ -MP -MF "$(ObjDir)/$*.BCCd" $< -o $@ ; \
	then $(MV) -f "$(ObjDir)/$*.BCCd" "$(ObjDir)/$*.d"; \
	else $(RM) -f "$(ObjDir)/$*.BCCd"; exit 1; fi

# Provide alternate rule sets if dependencies are disabled
else

ifdef SHARED_LIBRARY

$(ObjDir)/%.lo $(ObjDir)/%.o: %.cpp $(ObjDir)/.dir 
	$(Echo) "Compiling $*.cpp for $(BuildMode) build (PIC)"
	$(LTCompile.CXX) $< -o $@ 

$(ObjDir)/%.lo $(ObjDir)/%.o: %.c $(ObjDir)/.dir 
	$(Echo) "Compiling $*.cpp for $(BuildMode) build (PIC)"
	$(LTCompile.C) $< -o $@ 

else

$(ObjDir)/%.o: %.cpp $(ObjDir)/.dir
	$(Echo) "Compiling $*.cpp for $(BuildMode) build"
	$(Compile.CXX) $< -o $@ 

$(ObjDir)/%.o: %.c $(ObjDir)/.dir
	$(Echo) "Compiling $*.cpp for $(BuildMode) build"
	$(Compile.C) $< -o $@ 
endif

$(ObjDir)/%.bc: %.cpp $(ObjDir)/.dir $(GCCAS)
	$(Echo) "Compiling $*.cpp for $(BuildMode) build (bytecode)"
	$(BCCompile.CXX) $< -o $@ 

$(ObjDir)/%.bc: %.c $(ObjDir)/.dir $(GCCAS)
	$(Echo) "Compiling $*.c for $(BuildMode) build (bytecode)"
	$(BCCompile.C) $< -o $@

endif

#---------------------------------------------------------
# Provide rule to build .bc files from .ll sources,
# regardless of dependencies
#---------------------------------------------------------
$(ObjDir)/%.bc: %.ll $(ObjDir)/.dir $(LLVMAS)
	$(Echo) "Compiling $*.ll for $(BuildMode) build"
	$(Verb) $(LLVMAS) $< -f -o $@

###############################################################################
# TABLEGEN: Provide rules for running tblgen to produce *.inc files
###############################################################################

ifdef TARGET

TDFiles := $(strip $(wildcard $(BUILD_SRC_DIR)/*.td) $(LLVM_SRC_ROOT)/lib/Target/Target.td)
INCFiles := $(filter %.inc,$(BUILT_SOURCES))

$(INCFiles) : $(TBLGEN) $(TDFiles)

%GenRegisterNames.inc : %.td 
	$(Echo) "Building $(<F) register names with tblgen"
	$(Verb) $(TableGen) -gen-register-enums -o $@ $<

%GenRegisterInfo.h.inc : %.td 
	$(Echo) "Building $(<F) register information header with tblgen"
	$(Verb) $(TableGen) -gen-register-desc-header -o $@ $<

%GenRegisterInfo.inc : %.td
	$(Echo) "Building $(<F) register info implementation with tblgen"
	$(Verb) $(TableGen) -gen-register-desc -o $@ $<

%GenInstrNames.inc : %.td
	$(Echo) "Building $(<F) instruction names with tblgen"
	$(Verb) $(TableGen) -gen-instr-enums -o $@ $<

%GenInstrInfo.inc : %.td
	$(Echo) "Building $(<F) instruction information with tblgen"
	$(Verb) $(TableGen) -gen-instr-desc -o $@ $<

%GenAsmWriter.inc : %.td
	$(Echo) "Building $(<F) assembly writer with tblgen"
	$(Verb) $(TableGen) -gen-asm-writer -o $@ $<

%GenATTAsmWriter.inc : %.td
	$(Echo) "Building $(<F) AT&T assembly writer with tblgen"
	$(Verb) $(TableGen) -gen-asm-writer -o $@ $< 

%GenIntelAsmWriter.inc : %.td
	$(Echo) "Building $(<F) Intel assembly writer with tblgen"
	$(Verb) $(TableGen) -gen-asm-writer -asmwriternum=1 -o $@ $< 

%GenInstrSelector.inc: %.td
	$(Echo) "Building $(<F) instruction selector with tblgen"
	$(Verb) $(TableGen) -gen-instr-selector -o $@ $< 

%GenCodeEmitter.inc:: %.td
	$(Echo) "Building $(<F) code emitter with tblgen"
	$(Verb) $(TableGen) -gen-emitter -o $@ $<

clean-local::
	-$(Verb) $(RM) -f $(INCFiles)

endif

###############################################################################
# LEX AND YACC: Provide rules for generating sources with lex and yacc
###############################################################################

#---------------------------------------------------------
# Provide rules for generating a .cpp source file from 
# (f)lex input sources. 
#---------------------------------------------------------

LexFiles  := $(filter %.l,$(Sources))

ifneq ($(LexFiles),)

LexOutput := $(strip $(patsubst %.l,%.cpp,$(LexFiles)))

.PRECIOUS: $(LexOutput)

# Note the extra sed filtering here, used to cut down on the warnings emited 
# by GCC.  The last line is a gross hack to work around flex aparently not 
# being able to resize the buffer on a large token input.  Currently, for 
# uninitialized string buffers in LLVM we can generate very long tokens, so 
# this is a hack around it.
# FIXME.  (f.e. char Buffer[10000] )
%.cpp: %.l
	$(Echo) Flexing $<
	$(Verb) $(FLEX) -t $< | \
	$(SED) 's/void yyunput/inline void yyunput/' | \
	$(SED) 's/void \*yy_flex_realloc/inline void *yy_flex_realloc/' | \
	$(SED) 's/#define YY_BUF_SIZE 16384/#define YY_BUF_SIZE (16384*64)/' \
	  > $@

clean-local::
	-$(Verb) $(RM) -f $(LexOutput)
	$(Verb) $(RM) -f $(LexOutput)

endif

#---------------------------------------------------------
# Provide rules for generating a .cpp and .h source files 
# from yacc (bison) input sources.
#---------------------------------------------------------

YaccFiles  := $(filter %.y,$(Sources))
ifneq ($(YaccFiles),)
YaccOutput := $(addprefix $(patsubst %.y,%,$(YaccFiles)),.h .cpp .output)

.PRECIOUS: $(YaccOutput)

# Cancel built-in rules for yacc
%.c: %.y 
%.cpp: %.y
%.h: %.y

# Rule for building the bison parsers...
%.cpp %.h : %.y
	$(Echo) "Bisoning $*.y"
	$(Verb) $(BISON) -v -d -p $(<F:%Parser.y=%) -o $*.tab.c  $<
	$(Verb) $(MV) -f $*.tab.c $*.cpp
	$(Verb) $(MV) -f $*.tab.h $*.h

clean-local::
	-$(Verb) $(RM) -f $(YaccOutput)
	$(Verb) $(RM) -f $(YaccOutput)
endif

###############################################################################
# OTHER RULES: Other rules needed
###############################################################################

# To create postscript files from dot files...
ifneq ($(DOT),false)
%.ps: %.dot
	$(DOT) -Tps < $< > $@
else
%.ps: %.dot
	$(Echo) "Cannot build $@: The program dot is not installed"
endif

# This rules ensures that header files that are removed still have a rule for
# which they can be "generated."  This allows make to ignore them and
# reproduce the dependency lists.
%.h:: ;

# Define clean-local to clean the current directory. Note that this uses a
# very conservative approach ensuring that empty variables do not cause 
# errors or disastrous removal.
clean-local::
ifneq ($(strip $(ObjDir)),)
	-$(Verb) $(RM) -rf $(ObjDir)
endif
	-$(Verb) $(RM) -f core core.[0-9][0-9]* *.o *.d *~ *.flc
ifneq ($(strip $(SHLIBEXT)),) # Extra paranoia - make real sure SHLIBEXT is set
	-$(Verb) $(RM) -f *$(SHLIBEXT)
endif

clean-all-local::
	-$(Verb) $(RM) -rf Debug Release Profile

# Build tags database for Emacs/Xemacs:
tags:: TAGS CTAGS

TAGS: 
	find $(BUILD_SRC_ROOT)/include $(BUILD_SRC_ROOT)/lib \
          $(BUILD_SRC_ROOT)/tools $(BUILD_SRC_ROOT)/examples \
          $(BUILD_OBJ_ROOT)/include $(BUILD_OBJ_ROOT)/lib \
          $(BUILD_OBJ_ROOT)/tools $(BUILD_OBJ_ROOT)/examples \
        -name '*.cpp' -o -name '*.h' | \
        $(ETAGS) $(ETAGSFLAGS) -

CTAGS:
	find $(BUILD_SRC_ROOT)/include $(BUILD_SRC_ROOT)/lib \
          $(BUILD_SRC_ROOT)/tools $(BUILD_SRC_ROOT)/examples \
          $(BUILD_OBJ_ROOT)/include $(BUILD_OBJ_ROOT)/lib \
          $(BUILD_OBJ_ROOT)/tools $(BUILD_OBJ_ROOT)/examples \
          \( -name '*.cpp' -o -name '*.h' \) -print | \
          ctags -ImtT -o $(BUILD_OBJ_ROOT)/CTAGS -L -


###############################################################################
# DEPENDENCIES: Include the dependency files if we should
###############################################################################
ifndef DISABLE_AUTO_DEPENDENCIES

# If its not one of the cleaning targets
ifneq ($strip($(filter-out clean clean-local dist-clean,$(MAKECMDGOALS))),)

# Get the list of dependency files
DependFiles := $(basename $(filter %.cpp %.c %.cc, $(Sources)))
DependFiles := $(patsubst %,$(BUILD_OBJ_DIR)/$(BuildMode)/%.d,$(DependFiles))

-include /dev/null $(DependFiles)

endif

endif 

###############################################################################
# DISTRIBUTION: Handle construction of a distribution tarball
###############################################################################

#------------------------------------------------------------------------
# Define distribution related variables
#------------------------------------------------------------------------
DistName    := $(LLVM_TARBALL_NAME)
DistDir     := $(BUILD_OBJ_ROOT)/$(DistName)
TopDistDir  := $(BUILD_OBJ_ROOT)/$(DistName)
DistTarGZip := $(BUILD_OBJ_ROOT)/$(DistName).tar.gz
DistZip     := $(BUILD_OBJ_ROOT)/$(DistName).zip
DistTarBZ2  := $(BUILD_OBJ_ROOT)/$(DistName).tar.bz2
DistAlways  := CREDITS.TXT LICENSE.TXT README.txt README AUTHORS COPYING \
	       ChangeLog INSTALL NEWS Makefile Makefile.common Makefile.rules \
	       Makefile.config.in configure autoconf
DistOther   := $(notdir $(wildcard \
               $(BUILD_SRC_DIR)/*.h \
               $(BUILD_SRC_DIR)/*.td \
               $(BUILD_SRC_DIR)/*.def \
               $(BUILD_SRC_DIR)/*.ll \
               $(BUILD_SRC_DIR)/*.in))
DistSubDirs := $(SubDirs)
DistSources  = $(Sources) $(EXTRA_DIST)
DistFiles    = $(DistAlways) $(DistSources) $(DistOther)

#------------------------------------------------------------------------
# We MUST build distribution with OBJ_DIR != SRC_DIR
#------------------------------------------------------------------------
ifeq ($(BUILD_SRC_DIR),$(BUILD_OBJ_DIR))
dist dist-check dist-clean dist-gzip dist-bzip2 dist-zip ::
	$(Echo) ERROR: Target $@ only available with OBJ_DIR != SRC_DIR

DistCheckTop := 
else

DistCheckTop := check

#------------------------------------------------------------------------
# Prevent catastrophic remove
#------------------------------------------------------------------------
ifeq ($(LLVM_TARBALL_NAME),)
$(error LLVM_TARBALL_NAME is empty.  Please rerun configure)
endif

#------------------------------------------------------------------------
# Prevent attempt to run dist targets from anywhere but the top level
#------------------------------------------------------------------------
ifneq ($(LEVEL),.)

dist dist-check dist-clean dist-gzip dist-bzip2 dist-zip ::
	$(Echo) ERROR: You must run $@ from $(BUILD_OBJ_ROOT)

else

#------------------------------------------------------------------------
# Provide the top level targets
#------------------------------------------------------------------------

dist-gzip:: $(DistTarGZip)

$(DistTarGZip) : distdir
	$(Echo) Packing gzipped distribution tar file.
	$(Verb) cd $(BUILD_OBJ_ROOT) ; $(TAR) chf - "$(DistName)" | \
	  $(GZIP) -c > "$(DistTarGZip)"

dist-bzip2:: $(DistTarBZ2)

$(DistTarBZ2) : distdir
	$(Echo) Packing bzipped distribution tar file.
	$(Verb) cd $(BUILD_OBJ_ROOT) ; $(TAR) chf - $(DistName) | \
	  $(BZIP2) -c >$(DistTarBZ2)

dist-zip:: $(DistZip)

$(DistZip) : distdir
	$(Echo) Packing zipped distribution file.
	$(Verb) rm -f $(DistZip)
	$(Verb) cd $(BUILD_OBJ_ROOT) ; $(ZIP) -rq $(DistZip) $(DistName)

dist :: $(DistTarGZip) $(DistTarBZ2) $(DistZip) 
	$(Echo) ===== DISTRIBUTION PACKAGING SUCESSFUL =====

DistCheckDir := $(LLVM_OBJ_ROOT)/_distcheckdir

dist-check:: $(DistCheckTop) $(DistTarGZip)
	$(Echo) Checking distribution tar file.
	$(Verb) if test -d $(DistCheckDir) ; then \
	  $(RM) -rf $(DistCheckDir) ; \
	fi
	$(Verb) $(MKDIR) $(DistCheckDir)
	$(Verb) cd $(DistCheckDir) && \
	  $(MKDIR) $(DistCheckDir)/build && \
	  $(MKDIR) $(DistCheckDir)/install && \
	  gunzip -c $(DistTarGZip) | $(TAR) xf - && \
	  cd build && \
	  ../$(DistName)/configure --prefix="$(DistCheckDir)/install" \
	    --srcdir=../$(DistName) --with-llvmgccdir="$(LLVMGCCDIR)" && \
	  $(MAKE) check && \
	  $(MAKE) install && \
	  $(MAKE) uninstall && \
	  $(MAKE) dist && \
	  $(MAKE) clean && \
	  $(MAKE) dist-clean && \
	  $(EchoCmd) ===== $(DistTarGZip) Ready For Distribution =====

dist-clean::
	$(Echo) Cleaning distribution files
	-$(Verb) $(RM) -rf $(DistTarGZip) $(DistTarBZ2) $(DistZip) $(DistName) $(DistCheckDir)

endif

#------------------------------------------------------------------------
# Provide the recursive distdir target for building the distribution directory
#------------------------------------------------------------------------
distdir : $(DistSources)
	$(Verb) if test "$(DistDir)" = "$(TopDistDir)" ; then \
	  if test -d "$(DistDir)" ; then \
	    find $(DistDir) -type d ! -perm -200 -exec chmod u+w {} ';'  || \
	      exit 1 ; \
	  fi ; \
	  $(EchoCmd) Removing $(DistDir) ; \
	  $(RM) -rf $(DistDir); \
	fi
	$(Echo) Building Distribution Directory $(DistDir)
	$(Verb) $(MKDIR) $(DistDir) 
	$(Verb) srcdirstrip=`echo "$(BUILD_SRC_DIR)" | sed 's|.|.|g'`; \
	srcrootstrip=`echo "$(BUILD_SRC_ROOT)" | sed 's|.|.|g'`; \
	for file in $(DistFiles) ; do \
	  case "$$file" in \
	    $(BUILD_SRC_DIR)/*) file=`echo "$$file" | sed "s#^$$srcdirstrip/##"`;; \
	    $(BUILD_SRC_ROOT)/*) file=`echo "$$file" | sed "s#^$$srcrootstrip/#$(BUILD_OBJ_ROOT)/#"`;; \
	  esac; \
	  if test -f "$$file" || test -d "$$file" ; then \
	    from_dir=. ; \
	  else \
	    from_dir=$(BUILD_SRC_DIR); \
	  fi; \
	  to_dir=`echo "$$file" | sed -e 's#/[^/]*$$##'`; \
	  if test "$$to_dir" != "$$file" && test "$$to_dir" != "."; then \
	    to_dir="$(DistDir)/$$dir"; \
	    $(MKDIR) "$$to_dir" ; \
	  else \
	    to_dir="$(DistDir)"; \
	  fi; \
	  mid_dir=`echo "$$file" | sed -n -e 's#^\(.*\)/[^/]*$$#\1#p'`; \
	  if test -n "$$mid_dir" ; then \
            $(MKDIR) "$$to_dir/$$mid_dir" || exit 1; \
          fi ; \
	  if test -d "$$from_dir/$$file"; then \
	    if test -d "$(BUILD_SRC_DIR)/$$file" && \
	       test "$$from_dir" != "$(BUILD_SRC_DIR)" ; then \
	      cp -pR "$(BUILD_SRC_DIR)/$$file" "$$to_dir" || exit 1; \
	    fi; \
	    cp -pR $$from_dir/$$file $$to_dir || exit 1; \
	  elif test -f "$$from_dir/$$file" ; then \
	    cp -p "$$from_dir/$$file" "$(DistDir)/$$file" || exit 1; \
	  elif test -L "$$from_dir/$$file" ; then \
	    cp -pd "$$from_dir/$$file" $(DistDir)/$$file || exit 1; \
	  elif echo "$(DistAlways)" | grep -v "$$file" >/dev/null ; then \
	    $(EchoCmd) "===== WARNING: Distribution Source $$from_dir/$$file Not Found!" ; \
	  elif test "$(Verb)" != '@' ; then \
	    $(EchoCmd) "Skipping non-existent $$from_dir/$$file" ; \
	  fi; \
	done
	$(Verb) for subdir in $(DistSubDirs) ; do \
	  if test "$$subdir" \!= "." ; then \
	    new_distdir="$(DistDir)/$$subdir" ; \
	    test -d "$$new_distdir" || $(MKDIR) "$$new_distdir" || exit 1; \
	    ( cd $$subdir && $(MAKE) DistDir="$$new_distdir" distdir ) || exit 1; \
	  fi; \
	done
	$(Verb) $(MAKE) DistDir="$(DistDir)" dist-hook || exit 1
	-$(Verb) find $(DistDir) -type d ! -perm -777 -exec chmod a+rwx {} \; -o \
	  ! -type d ! -perm -444 -links 1 -exec chmod a+r {} \; -o \
	  ! -type d ! -perm -400 -exec chmod a+r {} \; -o \
	  ! -type d ! -perm -444 -exec $(SHELL) $(INSTALL_SH) -c -m a+r {} {} \; \
	|| chmod -R a+r $(DistDir)

# This is invoked by distdir target, define it as a no-op to avoid errors if not
# defined by user.
dist-hook::

endif

###############################################################################
# TOP LEVEL - targets only to apply at the top level directory
###############################################################################

ifeq ($(LEVEL),.)

#------------------------------------------------------------------------
# Install support for project's include files:
#------------------------------------------------------------------------
install-local::
	$(Echo) Installing include files
	$(Verb) $(MKDIR) $(includedir)
	$(Verb) if [ -d "$(BUILD_SRC_ROOT)/include" ] ; then \
	  cd $(BUILD_SRC_ROOT)/include && \
	    find . -path '*/Internal' -prune -o '(' -type f \
	      '!' '(' -name '*~' -o -name '.cvsignore' -o -name '.#*' ')' \
	      -print ')' | grep -v CVS | pax -rwdvpe $(includedir) ; \
	fi

uninstall-local::
	$(Echo) Uninstalling include files
	$(Verb) if [ -d "$(BUILD_SRC_ROOT)/include" ] ; then \
	  cd $(BUILD_SRC_ROOT)/include && \
	    $(RM) -f `find . -path '*/Internal' -prune -o '(' -type f \
	      '!' '(' -name '*~' -o -name '.cvsignore' -o -name '.#*' ')' \
	      -print ')' | grep -v CVS | sed 's#^#$(includedir)/#'` ; \
	fi 

endif

#------------------------------------------------------------------------
# Print out the directories used for building
#------------------------------------------------------------------------
printvars::
	$(Echo) "BuildMode      : " '$(BuildMode)'
	$(Echo) "BUILD_SRC_ROOT : " '$(BUILD_SRC_ROOT)'
	$(Echo) "BUILD_SRC_DIR  : " '$(BUILD_SRC_DIR)'
	$(Echo) "BUILD_OBJ_ROOT : " '$(BUILD_OBJ_ROOT)'
	$(Echo) "BUILD_OBJ_DIR  : " '$(BUILD_OBJ_DIR)'
	$(Echo) "LLVM_SRC_ROOT  : " '$(LLVM_SRC_ROOT)'
	$(Echo) "LLVM_OBJ_ROOT  : " '$(LLVM_OBJ_ROOT)'
	$(Echo) "libdir         : " '$(libdir)'
	$(Echo) "bindir         : " '$(bindir)'
	$(Echo) "sysconfdir     : " '$(sysconfdir)'
	$(Echo) "bytecode_libdir: " '$(bytecode_libdir)'
	$(Echo) "UserTargets    : " '$(UserTargets)'
	$(Echo) "ObjMakefiles   : " '$(ObjMakefiles)'
	$(Echo) "SrcMakefiles   : " '$(SrcMakefiles)'
	$(Echo) "ObjDir         : " '$(ObjDir)'
	$(Echo) "LibDir         : " '$(LibDir)'
	$(Echo) "ToolDir        : " '$(ToolDir)'
	$(Echo) "ExmplDir       : " '$(ExmplDir)'
	$(Echo) "TDFiles        : " '$(TDFiles)'
	$(Echo) "INCFiles       : " '$(INCFiles)'
	$(Echo) "Compile.CXX    : " '$(Compile.CXX)'
	$(Echo) "Compile.C      : " '$(Compile.C)'
	$(Echo) "Archive        : " '$(Archive)'
	$(Echo) "YaccFiles      : " '$(YaccFiles)'
	$(Echo) "LexFiles       : " '$(LexFiles)'