# example, ../.. for two levels deep.
#
# 2. DIRS - A list of subdirectories to be built. Fake targets are set up
-# so that each of the targets "all", "install", and "clean" each build.
-# the subdirectories before the local target.
+# so that each of the targets "all", "install", and "clean" each build
+# the subdirectories before the local target. DIRS are guaranteed to be
+# built in order.
#
-# 3. Source - If specified, this sets the source code filenames. If this
+# 3. PARALLEL_DIRS - A list of subdirectories to be built, but that may be
+# built in any order. All DIRS are built in order before PARALLEL_DIRS are
+# built, which are then built in any order.
+#
+# 4. Source - If specified, this sets the source code filenames. If this
# is not set, it defaults to be all of the .cpp, .c, .y, and .l files
# in the current directory. Also, if you want to build files in addition
# to the local files, you can use the ExtraSource variable
#
+# 5. SourceDir - If specified, this specifies a directory that the source files
+# are in, if they are not in the current directory. This should include a
+# trailing / character.
+#
+# 6. LLVM_SRC_ROOT - If specified, points to the top of the LLVM source tree.
+#
+# 7. LLVM_OBJ_ROOT - If specified, points to the top directory where LLVM
+# object files are placed.
+#
+# 8. BUILD_SRC_DIR - The directory which contains the current set of Makefiles
+# and usually the source code too (unless SourceDir is set).
+#
+# 9. BUILD_SRC_ROOT - The root directory of the source code being compiled.
+#
+# 10. BUILD_OBJ_DIR - The directory where object code should be placed.
+#
+# 11. BUILD_OBJ_ROOT - The root directory for where object code should be
+# placed.
+#
+# For building,
+# LLVM, LLVM_SRC_ROOT = BUILD_SRC_ROOT, and
+# LLVM_OBJ_ROOT = BUILD_OBJ_ROOT.
#===-----------------------------------------------------------------------====
+#
# Configuration file to set paths specific to local installation of LLVM
#
include $(LEVEL)/Makefile.config
-# These are options that can either be enabled here, or can be enabled on the
-# make command line (ie, make ENABLE_PROFILING=1)
+###########################################################################
+# Directory Configuration
+# This section of the Makefile determines what is where. To be
+# specific, there are several locations that need to be defined:
+#
+# o LLVM_SRC_ROOT : The root directory of the LLVM source code.
+# o LLVM_OBJ_ROOT : The root directory containing the built LLVM code.
#
+# o BUILD_SRC_DIR : The directory containing the code to build.
+# o BUILD_SRC_ROOT : The root directory of the code to build.
+#
+# o BUILD_OBJ_DIR : The directory in which compiled code will be placed.
+# o BUILD_OBJ_ROOT : The root directory in which compiled code is placed.
+#
+###########################################################################
-# When ENABLE_PROFILING is enabled, the llvm source base is built with profile
-# information to allow gprof to be used to get execution frequencies.
#
-#ENABLE_PROFILING = 1
+# Set the source build directory. That is almost always the current directory.
+#
+ifndef BUILD_SRC_DIR
+BUILD_SRC_DIR = $(shell pwd)
+endif
+
+#
+# Set the source root directory.
+#
+ifndef BUILD_SRC_ROOT
+BUILD_SRC_ROOT = $(shell cd $(BUILD_SRC_DIR)/$(LEVEL); pwd)
+endif
-# When ENABLE_PURIFY is enabled, the LLVM tools are linked with purify (which
-# must be locally installed) to allow for some automated memory error debugging.
#
-#ENABLE_PURIFY = 1
+# Determine the path of the source tree relative from $HOME (the mythical
+# home directory).
+#
+HOME_OBJ_ROOT := $(OBJ_ROOT)$(patsubst $(HOME)%,%,$(BUILD_SRC_ROOT))
-# When ENABLE_OPTIMIZED is enabled, Release builds of all of the LLVM code are
-# turned on, and Debug builds are turned off.
#
-#ENABLE_OPTIMIZED = 1
+# Set the object build directory. Its location depends upon the source path
+# and where object files should go.
+#
+ifndef BUILD_OBJ_DIR
+ifeq ($(OBJ_ROOT),.)
+BUILD_OBJ_DIR = $(BUILD_SRC_DIR)
+else
+BUILD_OBJ_DIR := $(HOME_OBJ_ROOT)$(patsubst $(BUILD_SRC_ROOT)%,%,$(BUILD_SRC_DIR))
+endif
+endif
+
+#
+# Set the root of the object directory.
+#
+ifndef BUILD_OBJ_ROOT
+ifeq ($(OBJ_ROOT),.)
+BUILD_OBJ_ROOT = $(BUILD_SRC_ROOT)
+else
+BUILD_OBJ_ROOT := $(HOME_OBJ_ROOT)
+endif
+endif
+
+#
+# Set the LLVM source directory.
+# It is typically the root directory of what we're compiling now.
+#
+ifndef LLVM_SRC_ROOT
+LLVM_SRC_ROOT = $(BUILD_SRC_ROOT)
+endif
+
+#
+# Set the LLVM object directory.
+#
+ifndef LLVM_OBJ_ROOT
+LLVM_OBJ_ROOT = $(BUILD_OBJ_ROOT)
+endif
+
+###########################################################################
+# Default Targets:
+# The following targets are the standard top level targets for
+# building.
+###########################################################################
ifdef SHARED_LIBRARY
# if SHARED_LIBRARY is specified, the default is to build the dynamic lib
-dynamic ::
+all:: dynamic
endif
# Default Rule: Make sure it's also a :: rule
# Default for install is to at least build everything...
install ::
+# Default rule for test. It ensures everything has a test rule
+test::
-# Figure out which directory to build stuff into. We want to build into the
-# /shared directory by default because it is guaranteed to be local to the
-# current machine.
-#
-ifeq ($(LLVM_OBJ_DIR),.)
-BUILD_ROOT = $(LLVM_OBJ_DIR)
-BUILD_ROOT_TOP = $(LEVEL)
-else
+# Default rule for building only bytecode.
+bytecode::
-BUILD_ROOT := $(LLVM_OBJ_DIR)$(patsubst $(HOME)%,%,$(shell pwd))
+# Print out the directories used for building
+prdirs::
+ echo "Home Offset : " $(HOME_OBJ_ROOT);
+ echo "Build Source Root: " $(BUILD_SRC_ROOT);
+ echo "Build Source Dir : " $(BUILD_SRC_DIR);
+ echo "Build Object Root: " $(BUILD_OBJ_ROOT);
+ echo "Build Object Dir : " $(BUILD_OBJ_DIR);
+ echo "LLVM Source Root: " $(LLVM_SRC_ROOT);
+ echo "LLVM Object Root: " $(LLVM_OBJ_ROOT);
-# Calculate the BUILD_ROOT_TOP variable, which is the top of the llvm/ tree.
-# Note that although this is just equal to $(BUILD_ROOT)/$(LEVEL), we cannot use
-# this expression because some of the directories on the source tree may not
-# exist in the build tree (for example the test/ heirarchy). Thus we evaluate
-# the directory to eliminate the ../'s
#
-TOP_DIRECTORY := $(shell cd $(LEVEL); pwd)
-BUILD_ROOT_TOP := $(LLVM_OBJ_DIR)$(patsubst $(HOME)%,%,$(TOP_DIRECTORY))
-endif
+# Mark all of these targets as phony. This will hopefully speed up builds
+# slightly since GNU Make will not try to find implicit rules for targets
+# which are marked as Phony.
+#
+.PHONY: all dynamic clean distclean install test bytecode prdirs
+
+###########################################################################
+# Miscellaneous paths and commands:
+# This section defines various configuration macros, such as where
+# to find burg, tblgen, and libtool.
+###########################################################################
#--------------------------------------------------------------------
# Variables derived from configuration options...
#--------------------------------------------------------------------
#BinInstDir=/usr/local/bin
-#LibInstDir=/usrl/local/lib/xxx
+#LibInstDir=/usr/local/lib/xxx
#DocInstDir=/usr/doc/xxx
BURG_OPTS = -I
-PURIFY := $(PURIFY) -cache-dir="$(BUILD_ROOT_TOP)/../purifycache" -chain-length="30" -messages=all
+PURIFY := $(PURIFY) -cache-dir="$(BUILD_OBJ_ROOT)/../purifycache" -chain-length="30" -messages=all
-# Shorthand for commonly accessed directories
-LIBDEBUG := $(BUILD_ROOT_TOP)/lib/Debug
-LIBRELEASE := $(BUILD_ROOT_TOP)/lib/Release
-TOOLDEBUG := $(BUILD_ROOT_TOP)/tools/Debug
-TOOLRELEASE := $(BUILD_ROOT_TOP)/tools/Release
+ifdef ENABLE_PROFILING
+ ENABLE_OPTIMIZED = 1
+ CONFIGURATION := Profile
+else
+ ifdef ENABLE_OPTIMIZED
+ CONFIGURATION := Release
+ else
+ CONFIGURATION := Debug
+ endif
+endif
-# Verbosity levels
+#
+# Enable this for profiling support with 'gprof'
+# This automatically enables optimized builds.
+#
+ifdef ENABLE_PROFILING
+ PROFILE = -pg
+endif
+
+#
+# Suffixes for library compilation rules
+#
+.SUFFIXES: .so
+
+###########################################################################
+# Library Locations:
+# These variables describe various library locations:
+#
+# DEST* = Location of where libraries that are built will be placed.
+# LLVM* = Location of LLVM libraries used for linking.
+# PROJ* = Location of previously built libraries used for linking.
+###########################################################################
+
+# Libraries that are being built
+DESTLIBDEBUG := $(BUILD_OBJ_ROOT)/lib/Debug
+DESTLIBRELEASE := $(BUILD_OBJ_ROOT)/lib/Release
+DESTLIBPROFILE := $(BUILD_OBJ_ROOT)/lib/Profile
+DESTLIBCURRENT := $(BUILD_OBJ_ROOT)/lib/$(CONFIGURATION)
+
+# LLVM libraries used for linking
+LLVMLIBDEBUGSOURCE := $(LLVM_OBJ_ROOT)/lib/Debug
+LLVMLIBRELEASESOURCE := $(LLVM_OBJ_ROOT)/lib/Release
+LLVMLIBPROFILESOURCE := $(LLVM_OBJ_ROOT)/lib/Profile
+LLVMLIBCURRENTSOURCE := $(LLVM_OBJ_ROOT)/lib/$(CONFIGURATION)
+
+# Libraries that were built that will now be used for linking
+PROJLIBDEBUGSOURCE := $(BUILD_OBJ_ROOT)/lib/Debug
+PROJLIBRELEASESOURCE := $(BUILD_OBJ_ROOT)/lib/Release
+PROJLIBPROFILESOURCE := $(BUILD_OBJ_ROOT)/lib/Profile
+PROJLIBCURRENTSOURCE := $(BUILD_OBJ_ROOT)/lib/$(CONFIGURATION)
+
+###########################################################################
+# Tool Locations
+# These variables describe various tool locations:
+#
+# DEST* = Location of where tools that are built will be placed.
+# LLVM* = Location of LLVM tools used for building.
+# PROJ* = Location of previously built tools used for linking.
+###########################################################################
+
+DESTTOOLDEBUG := $(BUILD_OBJ_ROOT)/tools/Debug
+DESTTOOLRELEASE := $(BUILD_OBJ_ROOT)/tools/Release
+DESTTOOLPROFILE := $(BUILD_OBJ_ROOT)/tools/Profile
+DESTTOOLCURRENT := $(BUILD_OBJ_ROOT)/tools/$(CONFIGURATION)
+
+LLVMTOOLDEBUG := $(LLVM_OBJ_ROOT)/tools/Debug
+LLVMTOOLRELEASE := $(LLVM_OBJ_ROOT)/tools/Release
+LLVMTOOLPROFILE := $(LLVM_OBJ_ROOT)/tools/Profile
+LLVMTOOLCURRENT := $(LLVM_OBJ_ROOT)/tools/$(CONFIGURATION)
+
+PROJTOOLDEBUG := $(BUILD_OBJ_ROOT)/tools/Debug
+PROJTOOLRELEASE := $(BUILD_OBJ_ROOT)/tools/Release
+PROJTOOLPROFILE := $(BUILD_OBJ_ROOT)/tools/Profile
+PROJTOOLCURRENT := $(BUILD_OBJ_ROOT)/tools/$(CONFIGURATION)
+
+#
+# Libtool is found in the current directory.
+#
ifdef VERBOSE
-VERB :=
+LIBTOOL=$(LLVM_SRC_ROOT)/mklib
else
+LIBTOOL=$(LLVM_SRC_ROOT)/mklib --silent
+endif
+
+#
+# If we're not building a shared library, use the disable-shared tag with
+# libtool. This will disable the building of objects for shared libraries and
+# only generate static library objects.
+#
+# For dynamic libraries, we'll take the performance hit for now, since we
+# almost never build them.
+#
+# This should speed up compilation and require no modifications to future
+# versions of libtool.
+#
+ifndef SHARED_LIBRARY
+LIBTOOL := $(LIBTOOL) --tag=disable-shared
+endif
+
+#
+# Verbosity levels
+#
+ifndef VERBOSE
VERB := @
endif
-#---------------------------------------------------------
-# Compilation options...
-#---------------------------------------------------------
+###########################################################################
+# Miscellaneous paths and commands (part deux):
+# This section defines various configuration macros, such as where
+# to find burg, tblgen, and libtool.
+###########################################################################
-# Special tools used while building
-RunBurg := $(BURG) $(BURG_OPTS)
+#--------------------------------------------------------------------------
+# Special tools used while building the LLVM tree. Burg is built as part
+# of the utils directory.
+#--------------------------------------------------------------------------
+BURG := $(LLVMTOOLCURRENT)/burg
+RunBurg := $(BURG) $(BURG_OPTS)
-# Enable this for profiling support with 'gprof'
-ifdef ENABLE_PROFILING
-PROFILE = -pg
-else
-PROFILE =
+TBLGEN := $(LLVMTOOLCURRENT)/tblgen
+
+
+###########################################################################
+# Compile Time Flags
+###########################################################################
+
+#
+# Include both the project headers and the LLVM headers for compilation and
+# dependency computation.
+#
+CPPFLAGS += -I$(BUILD_SRC_ROOT)/include -I$(LLVM_SRC_ROOT)/include
+
+# By default, strip symbol information from executable
+ifndef KEEP_SYMBOLS
+STRIP = $(PLATFORMSTRIPOPTS)
+STRIP_WARN_MSG = "(without symbols)"
endif
+# Allow gnu extensions...
+CPPFLAGS += -D_GNU_SOURCE
+
# -Wno-unused-parameter
-CompileCommonOpts := $(PROFILE) -Wall -W -Wwrite-strings -Wno-unused -I$(LEVEL)/include
+CompileCommonOpts := -Wall -W -Wwrite-strings -Wno-unused -I$(LEVEL)/include
+CompileOptimizeOpts := -O3 -DNDEBUG -finline-functions -fshort-enums
+
+#
+# Compile commands with libtool.
+#
+Compile := $(LIBTOOL) --mode=compile $(CXX) -c $(CPPFLAGS) $(CXXFLAGS) $(CompileCommonOpts)
+CompileC := $(LIBTOOL) --mode=compile $(CC) -c $(CPPFLAGS) $(CCFLAGS) $(CompileCommonOpts)
-# Compile a file, don't link...
-Compile := $(CXX) -c $(CPPFLAGS) $(CXXFLAGS) $(CompileCommonOpts)
+# Compile a cpp file, don't link...
CompileG := $(Compile) -g -D_DEBUG
-CompileO := $(Compile) -O3 -DNDEBUG -finline-functions -felide-constructors -fnonnull-objects -freg-struct-return -fshort-enums
+CompileO := $(Compile) $(CompileOptimizeOpts) -felide-constructors -fomit-frame-pointer
+CompileP := $(Compile) $(CompileOptimizeOpts) -felide-constructors $(PROFILE)
-# Link final executable
+# Compile a c file, don't link...
+CompileCG := $(CompileC) -g -D_DEBUG
+CompileCO := $(CompileC) $(CompileOptimizeOpts) -fomit-frame-pointer
+CompileCP := $(CompileC) $(CompileOptimizeOpts) $(PROFILE)
+
+###########################################################################
+# Link Time Options
+###########################################################################
+#
+# Link final executable
+# (Note that we always link with the C++ compiler).
+#
ifdef ENABLE_PURIFY # To enable purify, build with 'gmake ENABLE_PURIFY=1'
-Link := $(PURIFY) $(CXX) $(PROFILE) -static
+Link := $(PURIFY) $(LIBTOOL) --mode=link $(CXX) -static
else
-Link := $(CXX) $(PROFILE)
+Link := $(LIBTOOL) --mode=link $(CXX)
endif
-LinkG := $(Link) -g -L $(LIBDEBUG)
-LinkO := $(Link) -O3 -L $(LIBRELEASE)
-# Create a .so file from a .o files...
-#MakeSO := $(CXX) -shared $(PROFILE)
-MakeSO := $(CXX) -G $(PROFILE)
-MakeSOO := $(MakeSO) -O3
+# link both projlib and llvmlib libraries
+LinkG := $(Link) -g -L$(PROJLIBDEBUGSOURCE) -L$(LLVMLIBDEBUGSOURCE) $(STRIP)
+LinkO := $(Link) -O3 -L$(PROJLIBRELEASESOURCE) -L$(LLVMLIBRELEASESOURCE)
+LinkP := $(Link) -O3 -L$(PROJLIBPROFILESOURCE) -L$(LLVMLIBPROFILESOURCE) $(PROFILE)
# Create one .o file from a bunch of .o files...
-Relink = ld -r
+#ifdef SHARED_LIBRARY
+Relink = ${LIBTOOL} --mode=link $(CXX)
+#else
+Relink = ${LIBTOOL} --mode=link $(CXX) -only-static
+#endif
+
+# MakeSO - Create a .so file from a .o files...
+#MakeSO := $(LIBTOOL) --mode=link $(CXX) $(MakeSharedObjectOption)
+#MakeSOO := $(MakeSO) -O3
+#MakeSOP := $(MakeSOO) $(PROFILE)
+
+#
+# Configure where the item being compiled should go.
+#
+ifdef SHARED_LIBRARY
+Link := $(Link) -rpath $(DESTLIBCURRENT)
+endif
+
+ifdef TOOLNAME
+Link := $(Link) -rpath $(DESTTOOLCURRENT)
+endif
# Create dependancy file from CPP file, send to stdout.
Depend := $(CXX) -MM -I$(LEVEL)/include $(CPPFLAGS)
+DependC := $(CC) -MM -I$(LEVEL)/include $(CPPFLAGS)
# Archive a bunch of .o files into a .a file...
-AR = ar cq
+AR = ${AR_PATH} cq
#----------------------------------------------------------
# source files...
# The local Makefile can list other Source files via ExtraSource = ...
#
+ifndef Source
Source := $(ExtraSource) $(wildcard *.cpp *.c *.y *.l)
+endif
-Objs := $(sort $(patsubst Debug/%.o, %.o, $(addsuffix .o,$(basename $(Source)))))
-ObjectsO = $(addprefix $(BUILD_ROOT)/Release/,$(Objs)))
-ObjectsG = $(addprefix $(BUILD_ROOT)/Debug/,$(Objs))
+#
+# Libtool Objects
+#
+Objs := $(sort $(patsubst Debug/%.lo, %.lo, $(addsuffix .lo,$(notdir $(basename $(Source))))))
+ObjectsO := $(addprefix $(BUILD_OBJ_DIR)/Release/,$(Objs))
+ObjectsP := $(addprefix $(BUILD_OBJ_DIR)/Profile/,$(Objs))
+ObjectsG := $(addprefix $(BUILD_OBJ_DIR)/Debug/,$(Objs))
+#
+# The real objects underlying the libtool objects
+#
+RObjs := $(sort $(patsubst Debug/%.o, %.o, $(addsuffix .o,$(notdir $(basename $(Source))))))
+RObjectsO := $(addprefix $(BUILD_OBJ_DIR)/Release/,$(RObjs))
+RObjectsP := $(addprefix $(BUILD_OBJ_DIR)/Profile/,$(RObjs))
+RObjectsG := $(addprefix $(BUILD_OBJ_DIR)/Debug/,$(RObjs))
#---------------------------------------------------------
-# Handle the DIRS option
+# Handle the DIRS and PARALLEL_DIRS options
#---------------------------------------------------------
-ifdef DIRS # Only do this if we're using DIRS!
+ifdef DIRS
+all install clean test bytecode ::
+ $(VERB) for dir in ${DIRS}; do \
+ (cd $$dir; $(MAKE) $@) || exit 1; \
+ done
+endif
-all :: $(addsuffix /.makeall , $(DIRS))
-install :: $(addsuffix /.makeinstall, $(DIRS))
-clean :: $(addsuffix /.makeclean , $(DIRS))
+# Handle PARALLEL_DIRS
+ifdef PARALLEL_DIRS
+all :: $(addsuffix /.makeall , $(PARALLEL_DIRS))
+install :: $(addsuffix /.makeinstall , $(PARALLEL_DIRS))
+clean :: $(addsuffix /.makeclean , $(PARALLEL_DIRS))
+test :: $(addsuffix /.maketest , $(PARALLEL_DIRS))
+bytecode :: $(addsuffix /.makebytecode, $(PARALLEL_DIRS))
-%/.makeall %/.makeclean %/.makeinstall:
+%/.makeall %/.makeinstall %/.makeclean %/.maketest %/.makebytecode:
$(VERB) cd $(@D); $(MAKE) $(subst $(@D)/.make,,$@)
endif
+# Handle directories that may or may not exist
+ifdef OPTIONAL_DIRS
+all install clean test bytecode ::
+ $(VERB) for dir in ${OPTIONAL_DIRS}; do \
+ if [ -d $$dir ]; \
+ then\
+ (cd $$dir; $(MAKE) $@) || exit 1; \
+ fi \
+ done
+endif
+
+###########################################################################
+# Library Build Rules:
+#
#---------------------------------------------------------
# Handle the LIBRARYNAME option - used when building libs...
#---------------------------------------------------------
# it's built as a .o file, then all of the constituent .o files in it will be
# linked into tools (for example gccas) even if they only use one of the parts
# of it. For this reason, sometimes it's useful to use libraries as .a files.
+###########################################################################
ifdef LIBRARYNAME
-LIBNAME_O := $(LIBRELEASE)/lib$(LIBRARYNAME).so
-LIBNAME_G := $(LIBDEBUG)/lib$(LIBRARYNAME).so
-LIBNAME_AO := $(LIBRELEASE)/lib$(LIBRARYNAME).a
-LIBNAME_AG := $(LIBDEBUG)/lib$(LIBRARYNAME).a
-LIBNAME_OBJO := $(LIBRELEASE)/$(LIBRARYNAME).o
-LIBNAME_OBJG := $(LIBDEBUG)/$(LIBRARYNAME).o
+# Make sure there isn't any extranous whitespace on the LIBRARYNAME option
+LIBRARYNAME := $(strip $(LIBRARYNAME))
+LIBNAME_O := $(DESTLIBRELEASE)/lib$(LIBRARYNAME).so
+LIBNAME_P := $(DESTLIBPROFILE)/lib$(LIBRARYNAME).so
+LIBNAME_G := $(DESTLIBDEBUG)/lib$(LIBRARYNAME).so
+LIBNAME_AO := $(DESTLIBRELEASE)/lib$(LIBRARYNAME).a
+LIBNAME_AP := $(DESTLIBPROFILE)/lib$(LIBRARYNAME).a
+LIBNAME_AG := $(DESTLIBDEBUG)/lib$(LIBRARYNAME).a
+LIBNAME_OBJO := $(DESTLIBRELEASE)/$(LIBRARYNAME).o
+LIBNAME_OBJP := $(DESTLIBPROFILE)/$(LIBRARYNAME).o
+LIBNAME_OBJG := $(DESTLIBDEBUG)/$(LIBRARYNAME).o
-ifndef ENABLE_OPTIMIZED
-BUILD_LIBNAME_G := $(LIBNAME_G)
-ifndef DONT_BUILD_RELINKED
-BUILD_LIBNAME_OBJG := $(LIBNAME_OBJG)
-endif
-ifdef BUILD_ARCHIVE
-BUILD_LIBNAME_AG := $(LIBNAME_AG)
-endif
-endif
+#--------------------------------------------------------------------
+# Library Targets
+# Modify the top level targets to build the desired libraries.
+#--------------------------------------------------------------------
-# If optimized builds are enabled...
-ifdef ENABLE_OPTIMIZED
-BUILD_LIBNAME_O := $(LIBNAME_O)
+# dynamic target builds a shared object version of the library...
+dynamic:: $(DESTLIBCURRENT)/lib$(LIBRARYNAME).so
+
+# Does the library want a .o version built?
ifndef DONT_BUILD_RELINKED
-BUILD_LIBNAME_OBJO := $(LIBNAME_OBJO)
+all:: $(DESTLIBCURRENT)/$(LIBRARYNAME).o
endif
+
+# Does the library want an archive version built?
ifdef BUILD_ARCHIVE
-BUILD_LIBNAME_AO := $(LIBNAME_AO)
-endif
+all:: $(DESTLIBCURRENT)/lib$(LIBRARYNAME).a
endif
-all:: $(BUILD_LIBNAME_AG) $(BUILD_LIBNAME_OBJG) # Debug
-all:: $(BUILD_LIBNAME_AO) $(BUILD_LIBNAME_OBJO) # Release
-dynamic:: $(BUILD_LIBNAME_G) $(BUILD_LIBNAME_O) # .so files
+#--------------------------------------------------------------------
+# Rules for building libraries
+#--------------------------------------------------------------------
-$(LIBNAME_O): $(ObjectsO) $(LibSubDirs) $(LIBRELEASE)/.dir
- @echo ======= Linking $(LIBRARYNAME) release library =======
- $(VERB) $(MakeSOO) -o $@ $(ObjectsO) $(LibSubDirs) $(LibLinkOpts)
+#
+# Rules for building dynamically linked libraries.
+#
+$(LIBNAME_O): $(ObjectsO) $(LibSubDirs) $(DESTLIBRELEASE)/.dir
+ @echo ======= Linking $(LIBRARYNAME) dynamic release library =======
+ $(VERB) $(Link) -o $*.la $(ObjectsO) $(LibSubDirs) $(LibLinkOpts);
+ $(VERB) $(LIBTOOL) --mode=install $(INSTALL) $*.la $(DESTLIBCURRENT);
+
+$(LIBNAME_P): $(ObjectsP) $(LibSubDirs) $(DESTLIBPROFILE)/.dir
+ @echo ======= Linking $(LIBRARYNAME) dynamic profile library =======
+ $(VERB) $(Link) -o $*.la $(ObjectsP) $(LibSubDirs) $(LibLinkOpts);
+ $(VERB) $(LIBTOOL) --mode=install $(INSTALL) $*.la $(DESTLIBCURRENT);
+
+$(LIBNAME_G): $(ObjectsG) $(LibSubDirs) $(DESTLIBDEBUG)/.dir
+ @echo ======= Linking $(LIBRARYNAME) dynamic debug library =======
+ $(VERB) $(Link) -o $*.la $(ObjectsG) $(LibSubDirs) $(LibLinkOpts);
+ $(VERB) $(LIBTOOL) --mode=install $(INSTALL) $*.la $(DESTLIBCURRENT);
+
+#
+# Rules for building static archive libraries.
+#
+$(LIBNAME_AO): $(ObjectsO) $(LibSubDirs) $(DESTLIBRELEASE)/.dir
+ @echo ======= Linking $(LIBRARYNAME) archive release library =======
+ @$(RM) -f $@
+ $(VERB) $(Link) -03 -o $@ $(ObjectsO) $(LibSubDirs) -static
-$(LIBNAME_G): $(ObjectsG) $(LibSubDirs) $(LIBDEBUG)/.dir
- @echo ======= Linking $(LIBRARYNAME) debug library =======
- $(VERB) $(MakeSO) -g -o $@ $(ObjectsG) $(LibSubDirs) $(LibLinkOpts)
+$(LIBNAME_AP): $(ObjectsP) $(LibSubDirs) $(DESTLIBPROFILE)/.dir
+ @echo ======= Linking $(LIBRARYNAME) archive profile library =======
+ @$(RM) -f $@
+ $(VERB) $(Link) -03 $(PROFILE) -o $@ $(ObjectsP) $(LibSubDirs) -static
-$(LIBNAME_AO): $(ObjectsO) $(LibSubDirs) $(LIBRELEASE)/.dir
- @echo ======= Linking $(LIBRARYNAME) release library =======
- @rm -f $@
- $(VERB) $(AR) $@ $(ObjectsO) $(LibSubDirs)
+$(LIBNAME_AG): $(ObjectsG) $(LibSubDirs) $(DESTLIBDEBUG)/.dir
+ @echo ======= Linking $(LIBRARYNAME) archive debug library =======
+ @$(RM) -f $@
+ $(VERB) $(Link) -g $(STRIP) -o $@ $(ObjectsG) $(LibSubDirs) -static
-$(LIBNAME_AG): $(ObjectsG) $(LibSubDirs) $(LIBDEBUG)/.dir
- @echo ======= Linking $(LIBRARYNAME) debug library =======
- @rm -f $@
- $(VERB) $(AR) $@ $(ObjectsG) $(LibSubDirs)
+#
+# Rules for building .o libraries.
+#
+# JTC:
+# Note that for this special case, we specify the actual object files
+# instead of their libtool counterparts. This is because libtool
+# doesn't want to generate a reloadable object file unless it is given
+# .o files explicitly.
+#
+# Note that we're making an assumption here: If we build a .lo file,
+# it's corresponding .o file will be placed in the same directory.
+#
+# I think that is safe.
+#
+$(LIBNAME_OBJO): $(ObjectsO) $(LibSubDirs) $(DESTLIBRELEASE)/.dir
+ @echo "Linking $@"
+ $(VERB) $(Relink) -o $@ $(RObjectsO) $(LibSubDirs)
-$(LIBNAME_OBJO): $(ObjectsO) $(LibSubDirs) $(LIBRELEASE)/.dir
+$(LIBNAME_OBJP): $(ObjectsP) $(LibSubDirs) $(DESTLIBPROFILE)/.dir
@echo "Linking $@"
- $(VERB) $(Relink) -o $@ $(ObjectsO) $(LibSubDirs)
+ $(VERB) $(Relink) -o $@ $(RObjectsP) $(LibSubDirs)
-$(LIBNAME_OBJG): $(ObjectsG) $(LibSubDirs) $(LIBDEBUG)/.dir
- $(VERB) $(Relink) -o $@ $(ObjectsG) $(LibSubDirs)
+$(LIBNAME_OBJG): $(ObjectsG) $(LibSubDirs) $(DESTLIBDEBUG)/.dir
+ @echo "Linking $@"
+ $(VERB) $(Relink) -o $@ $(RObjectsG) $(LibSubDirs)
endif
# Create a TAGS database for emacs
#------------------------------------------------------------------------
+ifdef ETAGS
ifeq ($(LEVEL), .)
tags:
- etags -l c++ `find include lib tools -name '*.cpp' -o -name '*.h'`
+ $(ETAGS) -l c++ `find include lib tools -name '*.cpp' -o -name '*.h'`
all:: tags
endif
+else
+tags:
+ ${ECHO} "Cannot build $@: The program etags is not installed"
+endif
#------------------------------------------------------------------------
# Handle the TOOLNAME option - used when building tool executables...
ifdef TOOLNAME
# TOOLEXENAME* - These compute the output filenames to generate...
-TOOLEXENAME_G := $(BUILD_ROOT_TOP)/tools/Debug/$(TOOLNAME)
-TOOLEXENAME_O := $(BUILD_ROOT_TOP)/tools/Release/$(TOOLNAME)
-TOOLEXENAMES := $(TOOLEXENAME_G)
-ifdef ENABLE_OPTIMIZED
-TOOLEXENAMES += $(TOOLEXENAME_O)
-endif
+TOOLEXENAME_G := $(DESTTOOLDEBUG)/$(TOOLNAME)
+TOOLEXENAME_O := $(DESTTOOLRELEASE)/$(TOOLNAME)
+TOOLEXENAME_P := $(DESTTOOLPROFILE)/$(TOOLNAME)
+TOOLEXENAMES := $(DESTTOOLCURRENT)/$(TOOLNAME)
# USED_LIBS_OPTIONS - Compute the options line that add -llib1 -llib2, etc.
-USED_LIBS_OPTIONS := $(patsubst %.a.o, -l%, $(addsuffix .o, $(USEDLIBS)))
-USED_LIBS_OPTIONS_G := $(patsubst %.o, $(LIBDEBUG)/%.o, $(USED_LIBS_OPTIONS))
-USED_LIBS_OPTIONS_O := $(patsubst %.o, $(LIBRELEASE)/%.o,$(USED_LIBS_OPTIONS))
+PROJ_LIBS_OPTIONS := $(patsubst %.a.o, -l%, $(addsuffix .o, $(USEDLIBS)))
+PROJ_LIBS_OPTIONS_G := $(patsubst %.o, $(PROJLIBDEBUGSOURCE)/%.o, $(PROJ_LIBS_OPTIONS))
+PROJ_LIBS_OPTIONS_O := $(patsubst %.o, $(PROJLIBRELEASESOURCE)/%.o,$(PROJ_LIBS_OPTIONS))
+PROJ_LIBS_OPTIONS_P := $(patsubst %.o, $(PROJLIBPROFILESOURCE)/%.o,$(PROJ_LIBS_OPTIONS))
+
+LLVM_LIBS_OPTIONS := $(patsubst %.a.o, -l%, $(addsuffix .o, $(LLVMLIBS)))
+LLVM_LIBS_OPTIONS_G := $(patsubst %.o, $(LLVMLIBDEBUGSOURCE)/%.o, $(LLVM_LIBS_OPTIONS))
+LLVM_LIBS_OPTIONS_O := $(patsubst %.o, $(LLVMLIBRELEASESOURCE)/%.o,$(LLVM_LIBS_OPTIONS))
+LLVM_LIBS_OPTIONS_P := $(patsubst %.o, $(LLVMLIBPROFILESOURCE)/%.o,$(LLVM_LIBS_OPTIONS))
+LIB_OPTS_G := $(LLVM_LIBS_OPTIONS_G) $(PROJ_LIBS_OPTIONS_G)
+LIB_OPTS_O := $(LLVM_LIBS_OPTIONS_O) $(PROJ_LIBS_OPTIONS_O)
+LIB_OPTS_P := $(LLVM_LIBS_OPTIONS_P) $(PROJ_LIBS_OPTIONS_P)
# USED_LIB_PATHS - Compute the path of the libraries used so that tools are
# rebuilt if libraries change. This has to make sure to handle .a/.so and .o
-# files seperately.
+# files separately.
#
STATICUSEDLIBS := $(patsubst %.a.o, lib%.a, $(addsuffix .o, $(USEDLIBS)))
-USED_LIB_PATHS_G := $(addprefix $(LIBDEBUG)/, $(STATICUSEDLIBS))
-USED_LIB_PATHS_O := $(addprefix $(LIBRELEASE)/, $(STATICUSEDLIBS))
+USED_LIB_PATHS_G := $(addprefix $(DESTLIBDEBUG)/, $(STATICUSEDLIBS))
+USED_LIB_PATHS_O := $(addprefix $(DESTLIBRELEASE)/, $(STATICUSEDLIBS))
+USED_LIB_PATHS_P := $(addprefix $(DESTLIBPROFILE)/, $(STATICUSEDLIBS))
+#LINK_OPTS := $(TOOLLINKOPTS) $(PLATFORMLINKOPTS)
+
+#
+# Libtool link options:
+# Ensure that all binaries have their symbols exported so that they can
+# by dlsym'ed.
+#
+LINK_OPTS := -export-dynamic $(TOOLLINKOPTS)
+
+
+
+
+
+# Tell make that we need to rebuild subdirectories before we can link the tool.
+# This affects things like LLI which has library subdirectories.
+$(USED_LIB_PATHS_G) $(USED_LIB_PATHS_O) $(USED_LIB_PATHS_P): \
+ $(addsuffix /.makeall, $(PARALLEL_DIRS))
all:: $(TOOLEXENAMES)
+
clean::
- $(VERB) rm -f $(TOOLEXENAMES)
+ $(VERB) $(RM) -f $(TOOLEXENAMES)
-$(TOOLEXENAME_G): $(ObjectsG) $(USED_LIB_PATHS_G) $(BUILD_ROOT_TOP)/tools/Debug/.dir
- $(VERB) $(LinkG) -o $@ $(ObjectsG) $(USED_LIBS_OPTIONS_G) $(TOOLLINKOPTS)
+$(TOOLEXENAME_G): $(ObjectsG) $(USED_LIB_PATHS_G) $(DESTTOOLDEBUG)/.dir
+ @echo ======= Linking $(TOOLNAME) debug executable $(STRIP_WARN_MSG) =======
+ $(VERB) $(LinkG) -o $@ $(ObjectsG) $(LIB_OPTS_G) $(LINK_OPTS) $(LIBS)
-$(TOOLEXENAME_O): $(ObjectsO) $(USED_LIB_PATHS_O) $(BUILD_ROOT_TOP)/tools/Release/.dir
- $(VERB) $(LinkO) -o $@ $(ObjectsG) $(USED_LIBS_OPTIONS_O) $(TOOLLINKOPTS)
+$(TOOLEXENAME_O): $(ObjectsO) $(USED_LIB_PATHS_O) $(DESTTOOLRELEASE)/.dir
+ @echo ======= Linking $(TOOLNAME) release executable =======
+ $(VERB) $(LinkO) -o $@ $(ObjectsO) $(LIB_OPTS_O) $(LINK_OPTS) $(LIBS)
+
+$(TOOLEXENAME_P): $(ObjectsP) $(USED_LIB_PATHS_P) $(DESTTOOLPROFILE)/.dir
+ @echo ======= Linking $(TOOLNAME) profile executable =======
+ $(VERB) $(LinkP) -o $@ $(ObjectsP) $(LIB_OPTS_P) $(LINK_OPTS) $(LIBS)
endif
#---------------------------------------------------------
-.PRECIOUS: $(BUILD_ROOT)/Depend/.dir
-.PRECIOUS: $(BUILD_ROOT)/Debug/.dir $(BUILD_ROOT)/Release/.dir
+.PRECIOUS: $(BUILD_OBJ_DIR)/Depend/.dir
+.PRECIOUS: $(BUILD_OBJ_DIR)/Debug/.dir $(BUILD_OBJ_DIR)/Release/.dir
-# Create dependencies for the *.cpp files...
-$(BUILD_ROOT)/Depend/%.d: %.cpp $(BUILD_ROOT)/Depend/.dir
- $(VERB) $(Depend) $< | sed 's|$*\.o *|$(BUILD_ROOT)/Release/& $(BUILD_ROOT)/Debug/& $(BUILD_ROOT)/Depend/$(@F)|g' > $@
+# Create .o files in the ObjectFiles directory from the .cpp and .c files...
+#$(BUILD_OBJ_DIR)/Release/%.o: $(SourceDir)%.cpp $(BUILD_OBJ_DIR)/Release/.dir
+ #@echo "Compiling $<"
+ #$(VERB) $(CompileO) $< -o $@
-# Create dependencies for the *.c files...
-$(BUILD_ROOT)/Depend/%.d: %.c $(BUILD_ROOT)/Depend/.dir
- $(VERB) $(Depend) $< | sed 's|$*\.o *|Release/& Debug/& Depend/$(@F)|g' > $@
+#$(BUILD_OBJ_DIR)/Release/%.o: $(SourceDir)%.c $(BUILD_OBJ_DIR)/Release/.dir
+ #$(VERB) $(CompileCO) $< -o $@
-# Create .o files in the ObjectFiles directory from the .cpp and .c files...
-$(BUILD_ROOT)/Release/%.o: %.cpp $(BUILD_ROOT)/Release/.dir
+#$(BUILD_OBJ_DIR)/Profile/%.o: $(SourceDir)%.cpp $(BUILD_OBJ_DIR)/Profile/.dir
+ #@echo "Compiling $<"
+ #$(VERB) $(CompileP) $< -o $@
+
+#$(BUILD_OBJ_DIR)/Profile/%.o: $(SourceDir)%.c $(BUILD_OBJ_DIR)/Profile/.dir
+ #@echo "Compiling $<"
+ #$(VERB) $(CompileCP) $< -o $@
+
+#$(BUILD_OBJ_DIR)/Debug/%.o: $(SourceDir)%.cpp $(BUILD_OBJ_DIR)/Debug/.dir
+ #@echo "Compiling $<"
+ #$(VERB) $(CompileG) $< -o $@
+
+#$(BUILD_OBJ_DIR)/Debug/%.o: $(SourceDir)%.c $(BUILD_OBJ_DIR)/Debug/.dir
+ #$(VERB) $(CompileCG) $< -o $@
+
+# Create .lo files in the ObjectFiles directory from the .cpp and .c files...
+$(BUILD_OBJ_DIR)/Release/%.lo: $(SourceDir)%.cpp $(BUILD_OBJ_DIR)/Release/.dir
+ @echo "Compiling $<"
+ $(VERB) $(CompileO) $< -o $@
+
+$(BUILD_OBJ_DIR)/Release/%.lo: $(SourceDir)%.c $(BUILD_OBJ_DIR)/Release/.dir
+ @echo "Compiling $<"
+ $(VERB) $(CompileCO) $< -o $@
+
+$(BUILD_OBJ_DIR)/Profile/%.lo: $(SourceDir)%.cpp $(BUILD_OBJ_DIR)/Profile/.dir
+ @echo "Compiling $<"
+ $(VERB) $(CompileP) $< -o $@
+
+$(BUILD_OBJ_DIR)/Profile/%.lo: $(SourceDir)%.c $(BUILD_OBJ_DIR)/Profile/.dir
+ @echo "Compiling $<"
+ $(VERB) $(CompileCP) $< -o $@
+
+$(BUILD_OBJ_DIR)/Debug/%.lo: $(SourceDir)%.cpp $(BUILD_OBJ_DIR)/Debug/.dir
+ @echo "Compiling $<"
+ $(VERB) $(CompileG) $< -o $@
+
+$(BUILD_OBJ_DIR)/Debug/%.lo: $(SourceDir)%.c $(BUILD_OBJ_DIR)/Debug/.dir
+ @echo "Compiling $<"
+ $(VERB) $(CompileCG) $< -o $@
+
+# Create .lo files in the ObjectFiles directory from the .cpp and .c files...
+$(BUILD_OBJ_DIR)/Release/%.lo: $(SourceDir)%.cpp $(BUILD_OBJ_DIR)/Release/.dir
@echo "Compiling $<"
$(VERB) $(CompileO) $< -o $@
-#Release/%.o: %.c Release/.dir Depend/.dir
-# $(CompileOC) $< -o $@
+$(BUILD_OBJ_DIR)/Release/%.lo: $(SourceDir)%.c $(BUILD_OBJ_DIR)/Release/.dir
+ $(VERB) $(CompileCO) $< -o $@
+
+$(BUILD_OBJ_DIR)/Profile/%.lo: $(SourceDir)%.cpp $(BUILD_OBJ_DIR)/Profile/.dir
+ @echo "Compiling $<"
+ $(VERB) $(CompileP) $< -o $@
+
+$(BUILD_OBJ_DIR)/Profile/%.lo: $(SourceDir)%.c $(BUILD_OBJ_DIR)/Profile/.dir
+ @echo "Compiling $<"
+ $(VERB) $(CompileCP) $< -o $@
-$(BUILD_ROOT)/Debug/%.o: %.cpp $(BUILD_ROOT)/Debug/.dir
+$(BUILD_OBJ_DIR)/Debug/%.lo: $(SourceDir)%.cpp $(BUILD_OBJ_DIR)/Debug/.dir
@echo "Compiling $<"
$(VERB) $(CompileG) $< -o $@
-#Debug/%.o: %.c Debug/.dir
-# $(CompileGC) $< -o $@
+$(BUILD_OBJ_DIR)/Debug/%.lo: $(SourceDir)%.c $(BUILD_OBJ_DIR)/Debug/.dir
+ $(VERB) $(CompileCG) $< -o $@
+
+#
+# Rules for building lex/yacc files
+#
+LEX_FILES = $(filter %.l, $(Source))
+LEX_OUTPUT = $(LEX_FILES:%.l=%.cpp)
+YACC_FILES = $(filter %.y, $(Source))
+YACC_OUTPUT = $(addprefix $(YACC_FILES:%.y=%), .h .cpp .output)
+.PRECIOUS: $(LEX_OUTPUT) $(YACC_OUTPUT)
# Create a .cpp source file from a flex input file... this uses sed 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
- flex -t $< | sed '/^find_rule/d' | sed 's/void yyunput/inline void yyunput/' | sed 's/void \*yy_flex_realloc/inline void *yy_flex_realloc/' > $@
+ $(FLEX) -t $< | $(SED) '/^find_rule/d' | \
+ $(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)/' > $@
# Rule for building the bison parsers...
-
+%.c: %.y # Cancel built-in rules for yacc
+%.h: %.y # Cancel built-in rules for yacc
%.cpp %.h : %.y
- $(VERB) bison -v -d -p $(<:%Parser.y=%) $(basename $@).y
- $(VERB) mv -f $(basename $@).tab.c $(basename $@).cpp
- $(VERB) mv -f $(basename $@).tab.h $(basename $@).h
+ @echo Bison\'ing $<...
+ $(VERB) $(BISON) -v -d -p $(<:%Parser.y=%) $*.y
+ $(VERB) ${MV} -f $*.tab.c $*.cpp
+ $(VERB) ${MV} -f $*.tab.h $*.h
# To create the directories...
%/.dir:
- $(VERB) mkdir -p $(@D)
- @date > $@
+ $(VERB) ${MKDIR} $* > /dev/null
+ @$(DATE) > $@
-# Clean nukes the tree
-clean::
- $(VERB) rm -rf $(BUILD_ROOT)/Debug $(BUILD_ROOT)/Release $(BUILD_ROOT)/Depend
- $(VERB) rm -f core *.o *.d *.so *~ *.flc
+# To create postscript files from dot files...
+ifdef DOT
+%.ps: %.dot
+ ${DOT} -Tps < $< > $@
+else
+%.ps: %.dot
+ ${ECHO} "Cannot build $@: The program dot is not installed"
+endif
-# If dependancies were generated for the file that included this file,
+# 'make clean' nukes the tree
+clean::
+ $(VERB) $(RM) -rf $(BUILD_OBJ_DIR)/Debug $(BUILD_OBJ_DIR)/Release $(BUILD_OBJ_DIR)/Profile $(BUILD_OBJ_DIR)/Depend
+ $(VERB) $(RM) -f core core.[0-9][0-9]* *.o *.d *.so *~ *.flc
+ $(VERB) $(RM) -f $(LEX_OUTPUT) $(YACC_OUTPUT)
+
+distclean:: clean
+ $(VERB) (cd $(LLVM_SRC_ROOT); $(RM) -rf $(LEVEL)/Makefile.config \
+ $(LEVEL)/include/Config/config.h \
+ $(LEVEL)/autom4te.cache \
+ $(LEVEL)/config.log)
+
+###########################################################################
+# C/C++ Dependencies
+# Define variables and rules that generate header file dependencies
+# from C/C++ source files.
+###########################################################################
+
+# If dependencies were generated for the file that included this file,
# include the dependancies now...
#
-SourceDepend := $(addsuffix .d,$(addprefix $(BUILD_ROOT)/Depend/,$(basename $(filter-out Debug/%, $(Source)))))
+SourceBaseNames := $(basename $(notdir $(filter-out Debug/%, $(Source))))
+SourceDepend := $(SourceBaseNames:%=$(BUILD_OBJ_DIR)/Depend/%.d)
+
+# Create dependencies for the *.cpp files...
+#$(SourceDepend): \x
+$(BUILD_OBJ_DIR)/Depend/%.d: $(SourceDir)%.cpp $(BUILD_OBJ_DIR)/Depend/.dir
+ $(VERB) $(Depend) $< | $(SED) 's|\.o|\.lo|' | $(SED) 's|$*\.lo *|$(BUILD_OBJ_DIR)/Release/& $(BUILD_OBJ_DIR)/Profile/& $(BUILD_OBJ_DIR)/Debug/& $(BUILD_OBJ_DIR)/Depend/$(@F)|g' > $@
+
+# Create dependencies for the *.c files...
+#$(SourceDepend): \x
+$(BUILD_OBJ_DIR)/Depend/%.d: $(SourceDir)%.c $(BUILD_OBJ_DIR)/Depend/.dir
+ $(VERB) $(DependC) -o $@ $< | $(SED) 's|\.o|\.lo|' | $(SED) 's|$*\.lo *|$(BUILD_OBJ_DIR)/Release/& $(BUILD_OBJ_DIR)/Profile/& $(BUILD_OBJ_DIR)/Debug/& $(BUILD_OBJ_DIR)/Depend/$(@F)|g' > $@
+
+#
+# Include dependencies generated from C/C++ source files, but not if we
+# are cleaning (this example taken from the GNU Make Manual).
+#
+ifneq ($(MAKECMDGOALS),clean)
ifneq ($(SourceDepend),)
-include $(SourceDepend)
+-include $(SourceDepend)
+endif
endif