/make/edam-mk

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#_______________________________________________________________________________
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#
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#                       edam's general-purpose makefile
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#_______________________________________________________________________________
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#                                                                    version 3.4
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#
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# Copyright (c) 2009 Tim Marston <edam@waxworlds.org>.
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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#
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#_______________________________________________________________________________
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#
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#
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# This is a general-purpose makefile for use with GNU make. It can be downloaded
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# from http://www.waxworlds.org/edam/software/general-purpose-makefile where you
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# can also find more information and documentation on it's use. The following
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# text can only really be considered a reference to it's use.
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#
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# To use this makefile, put a file named "Makefile" in your project directory.
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# Add all your project's settings to your Makefile and then include this file
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# from it. For example, your Makefile might look something like this:
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#
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#       TARGET = my_program
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#       SOURCES = main.cc foo.cc
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#       LIBRARIES = bar
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#       include ~/src/edam.mk
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#
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# A complete list of all the settings you can use in your Makefile follows. It
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# should be noted, though, that some settings are better defined in the shell's
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# environment and/or specified on the make command line than hard-coded straight
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# in to the Makefile. For example, the "DEBUGMODE" is an ideal candidate for
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# exporting from your shell:
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#       export DEBUGMODE=1
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# and overridding on the command line when necessary:
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#       make DEBUGMODE=
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#
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# It should also be noted that boolean parameters should either be undefined (or
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# defined as an empty string) for "off", and defined as "1" for "on"; as in the
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# above example with setting DEBUGMODE.
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#
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# Here is a list of all configuration parameters:
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#
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# DEBUGMODE    Boolean. Build a debugable version of the target suitable for
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#              debugging with gdb. It's probably better to set this from the
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#              command line or the shell's environment than to hard-code it.
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# PROFILEMODE  Boolean. When set, DEBUGMODE is also implied. Build a profiling
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#              version of the target, for use with gprof. It's probably better
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#              to set this from the command line or the shell's environment
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#              than to hard-code it.
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#
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# LINKSTATIC   Boolean. Set to build a target that staticly links against all
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#              its libraries and doesn't use shared libraries.
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#
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# MKSTATICLIB  Boolean. Target type: Set to build a static library target. If
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#              neither this nor MKSHAREDLIB are set, the target defaults to a
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#              binary executable.
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# MKSHAREDLIB  Boolean. Target type: Set to build a shared library target. If
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#              neither this nor MKSTATICLIB are set, the target defaults to a
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#              binary executable.
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# NOLIBPREFIX  Boolean. When building a static or shared library, do not ensure
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#              that the target's name is prefixed with "lib".
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#
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# TARGET       The name of the target file.
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#
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# SOURCES      A list of all source files of whatever language. The language
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#              type is determined by the file extension.
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#
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# LIBRARIES    A list of libraries to link against. Don't include the 'lib'
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#              prefix.
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#
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# SUBDIRS      A list of subdirectories to build before attempting to build the
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#              target. These subdirectories are also included in a clean_all.
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#              Note that if the file 'emake.mk' exists in a subdirectory, it
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#              will be used explicitly, rather than any default makefile.
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#
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# SUBPROJS     A list of the names of other makefiles to run before attempting
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#              to build the target. This allows you to build multiple targets.
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#              Note that ".mk" is appended to the subproject names. These
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#              subprojects are also included in a clean_all.
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#
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# CPPFLAGS     Flags to give to the C and C++ compilers
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# CFLAGS       Flags to give to the C compiler
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# CXXFLAGS     Flags to give to the C++ compiler
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# DFLAGS       Flags to give to the D compiler
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# ASFLAGS      Flags to give to the assembler
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# LDFLAGS      Flags to give to the linker before librarys
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# LDPOSTFLAGS  Flags to give to the linker after libraries
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#
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# This general-purpose makefile also defines the following goals for use on the
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# command line when you run make:
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#
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# all          This is the default if no goal is specified. It builds subdirs
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#              and subprojects first and then the target.
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#
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# subdirs      Goes through the list of specified subdirectories, changing to
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#              them, and runs make there.
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#
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# subprojs     Goes through the list of specified subprojects, running the
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#              makefiles for each of them.
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#
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# target       Builds the target of your Makefile.
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#
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# run          Builds the target of your Makefile and, if successful, runs it.
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#              This is not available if you're building a library of some kind.
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#
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# debug        The same as the run goal, except instead of running the target,
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#              it is debugged with gdb.
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#
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# clean        Deletes temporary files.
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#
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# clean_all    Deletes temporary files and then goes through then project's
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#              subdirectories doing the same.
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#
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# <subdir>     Builds the specified subdirectory from those that are listed for
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#              the project.
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#
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# <subproj>    Builds the specified subproject from those listed for the
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#              project.
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#
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# <file>       Builds the specified file, either an object file or the target,
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#              from those that that would be built for the project.
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#
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# Please report any problems to Tim Marston <edam@waxworlds.org>
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#
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# Known shortcommings:
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# - Using C is probably broken because g++ is currently used for linking. We
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#   should be using ld and specifying the crt libs as required by the sources.
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#
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#_______________________________________________________________________________
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#
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# set debug mode if profiling
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ifdef PROFILEMODE
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export DEBUGMODE := 1
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endif
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# software
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CC			:= gcc
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CXX			:= g++
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GDC			:= gdc
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AS			:= nasm
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LD			:= g++
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AR			:= ar
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MAKE		:= make
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# debug/profile build flags
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CPPFLAGS	:= $(if $(PROFILEMODE),-pg -D PROFILE) $(if $(DEBUGMODE),\
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	-g3 -D DEBUG -Wall -Wextra,-D NDEBUG -O2) $(CPPFLAGS)
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CXXFLAGS	:= $(if $(DEBUGMODE),-Woverloaded-virtual -Wreorder \
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	-Wctor-dtor-privacy) $(CXXFLAGS)
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DFLAGS		:= $(if $(DEBUGMODE),,-frelease)
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ASFLAGS		:= -f elf $(if $(DEBUGMODE),-g -dDEBUG,-dNDEBUG -O2) $(ASFLAGS)
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LDFLAGS		:= $(if $(PROFILEMODE),-pg) \
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	$(if $(or $(PROFILEMODE), $(DEBUGMODE)),,-Wl,-S) $(LDFLAGS)
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# setup options for shared/static libs
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CPPFLAGS	:= $(if $(or $(MKSHAREDLIB),$(MKSTATICLIB)),-fPIC) $(CPPFLAGS)
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LDFLAGS		:= $(if $(LINKSTATIC),-static) $(LDFLAGS)
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# add libraries for d
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LIBRARIES	:= $(LIBRARIES) $(if $(filter %.d, $(SOURCES)), gphobos2 rt)
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# build flags for libraries
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LDPOSTFLAGS := $(addprefix -l,$(LIBRARIES)) $(LDPOSTFLAGS)
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# object debug/profile suffix
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BUILDSUFFIX	:= $(if $(PROFILEMODE),_p,$(if $(DEBUGMODE),_d))
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# work out object and dependency files
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OBJECTS		:= $(addsuffix $(BUILDSUFFIX).o,$(basename $(SOURCES)))
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DEPFILES	:= $(addsuffix .dep,$(basename $(SOURCES)))
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# fixup target name
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ifdef TARGET
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TARGET		:= $(basename $(TARGET))$(BUILDSUFFIX)$(suffix $(TARGET))
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TARGET		:= $(patsubst %.so,%,$(patsubst %.a,%,$(TARGET)))
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ifneq ($(strip $(MKSHAREDLIB) $(MKSTATICLIB)),)
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TARGET		:= $(TARGET)$(if $(MKSHAREDLIB),.so,$(if $(MKSTATICLIB),.a))
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ifndef NOLIBPREFIX
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TARGET		:= lib$(patsubst lib%,%,$(TARGET))
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endif
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endif
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endif
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# Set up dependency generation build flags and, for those languages where the
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# the compiler/assembler doesn't support dependency generation, commands to be
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# executed after generating any dependency file. The commands append the names
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# of all the depended-on files in the dependency file to the end of the file as
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# empty rules with no prerequesits or commands. This causes make not to fail if
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# one of these files becomes non-existant, but causes files dependent on these
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# files to be rebuilt (and thus also have their dependencies regenerated).
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ifdef DEBUGMODE
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ifndef PROFILEMODE
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FIXUP_DEPENDENCY_FILES = \
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	sed 's/\#.*//;s/^[^:]*://;s/^[ \t]*//;s/ *\\$$//;/^$$/d;s/$$/:/' < \
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	$(basename $<).dep > .$$$$~; cat .$$$$~ >> $(basename $<).dep; rm .$$$$~;
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DEPFLAGS	= -MMD -MP -MF $(basename $<).dep
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endif
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endif
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# include dependencies
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ifneq "$(MAKECMDGOALS)" "clean"
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ifneq "$(MAKECMDGOALS)" "clean_all"
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-include $(DEPFILES)
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endif
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endif
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# default rule
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.DEFAULT_GOAL := all
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#_______________________________________________________________________________
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#                                                                          RULES
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.PHONY:	all subdirs subprojs target clean clean_all run debug depend dep \
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	$(SUBDIRS) $(SUBPROJS)
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all: subdirs subprojs target
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subdirs: $(SUBDIRS)
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subprojs: $(SUBPROJS)
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target: $(TARGET)
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initial makefile
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clean:
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ifneq ($(or $(SUBDIRS),$(SUBPROJS)),)
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ifneq "$(MAKECMDGOALS)" "clean_all"
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	@echo "NOT RECURSING - use 'make clean_all' to clean subdirs and " \
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		"subprojs as well"
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endif
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endif
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	rm -f $(OBJECTS) $(TARGET) $(DEPFILES) core *~
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clean_all: subdirs subprojs clean
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ifndef MKSTATICLIB
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ifndef MKSHAREDLIB
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run: target
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	./$(TARGET)
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debug: target
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	gdb ./$(TARGET)
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endif
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endif
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$(SUBDIRS) $(SUBPROJS):
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	@if [ "$@" = "$(firstword $(SUBDIRS) $(SUBPROJS))" ]; then echo; fi
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	@$(MAKE) $(if $(filter $@,$(SUBPROJS)), -f $@.mk, \
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		-C $@ $(if $(wildcard $@/emake.mk),-f emake.mk,)) \
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		$(filter-out $(SUBDIRS) $(SUBPROJS) subdirs subprojs,$(MAKECMDGOALS))
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	@echo
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$(TARGET): $(OBJECTS)
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ifdef MKSTATICLIB
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	$(AR) rcs $(TARGET) $(OBJECTS)
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else
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	$(LD) $(if $(MKSHAREDLIB),-shared) -o $(TARGET) $(LDFLAGS) $(OBJECTS) $(LDPOSTFLAGS)
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endif
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%.o %_d.o %_p.o: %.c
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	$(CC) -c $(CPPFLAGS) $(DEPFLAGS) $(CFLAGS) -o $@ $<
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%.o %_d.o %_p.o: %.cc
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	$(CXX) -c $(CPPFLAGS) $(DEPFLAGS) $(CXXFLAGS) -o $@ $<
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%.o %_d.o %_p.o: %.C
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	$(CXX) -c $(CPPFLAGS) $(DEPFLAGS) $(CXXFLAGS) -o $@ $<
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%.o %_d.o %_p.o: %.cpp
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	$(CXX) -c $(CPPFLAGS) $(DEPFLAGS) $(CXXFLAGS) -o $@ $<
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%.o %_d.o %_p.o: %.d
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	$(GDC) -c $(CPPFLAGS) $(DFLAGS) -o $@ $<
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%.o %_d.o %_p.o: %.s
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	$(AS) $(ASFLAGS) -o $@ $<
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ifdef DEBUGMODE
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	$(AS) $(ASFLAGS) -M $< > $(basename $<).dep
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	$(FIXUP_DEPENDENCY_FILES)
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endif
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%.o %_d.o %_p.o: %.S
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	$(AS) $(ASFLAGS) -o $@ $<
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ifdef DEBUGMODE
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	$(AS) $(ASFLAGS) -M $< > $(basename $<).dep
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	$(FIXUP_DEPENDENCY_FILES)
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endif
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%.o %_d.o %_p.o: %.asm
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	$(AS) $(ASFLAGS) -o $@ $<
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ifdef DEBUGMODE
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	$(AS) $(ASFLAGS) -M $< > $(basename $<).dep
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	$(FIXUP_DEPENDENCY_FILES)
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endif
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#_______________________________________________________________________________
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