200 lines
5.2 KiB
Plaintext
200 lines
5.2 KiB
Plaintext
#This program is free software: you can redistribute it and/or modify
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#it under the terms of the GNU General Public License as published by
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#the Free Software Foundation, either version 3 of the License, or
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#(at your option) any later version.
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#This program is distributed in the hope that it will be useful,
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#but WITHOUT ANY WARRANTY; without even the implied warranty of
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#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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#GNU General Public License for more details.
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#You should have received a copy of the GNU General Public License
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#along with this program. If not, see <http://www.gnu.org/licenses/>.
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#Copyright 2018-2020 rexy712
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#Makefile to generate a single executable from all sources in SOURCE_DIRS that end in EXT
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ifeq ($(OS),Windows_NT)
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WINDOWS::=1
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endif
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SOURCE_DIRS::=src
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SOURCES::=
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OBJDIR::=obj
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DEPDIR::=$(OBJDIR)/dep
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LIBDIRS::=
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INCLUDE_DIRS::=include
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CFLAGS::=-std=c18 -Wall -pedantic -Wextra
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CXXFLAGS::=-std=c++17 -Wall -pedantic -Wextra
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EXT::=cpp
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LANG::=$(EXT)
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MAIN_EXECUTABLE::=tester
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RELEASE?=0
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MEMCHK?=0
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SAVEFLAGS?=1
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ifneq ($(WINDOWS),1)
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#*nix settings
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CC::=gcc
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CXX::=g++
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LDLIBS::=
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LDFLAGS::=
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STRIP::=strip
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RANLIB::=ranlib
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AR::=ar
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AS::=as
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else #windows
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#windows settings
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#windows is a fuckwit
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MINGW_PREFIX::=x86_64-w64-mingw32-
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CC::=$(MINGW_PREFIX)gcc
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CXX::=$(MINGW_PREFIX)g++
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LDLIBS::=
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LDFLAGS::=
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STRIP::=$(MINGW_PREFIX)strip
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RANLIB::=$(MINGW_PREFIX)ranlib
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AR::=$(MINGW_PREFIX)ar
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AS::=$(MINGW_PREFIX)as
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MAIN_EXECUTABLE::=$(MAIN_EXECUTABLE).exe
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endif #windows
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#main targets
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.PHONY: all
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#prerun targets
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all::
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#main target
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all:: | flags-update $(MAIN_EXECUTABLE)
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#postrun targets
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all::
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#custom clean targets
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clean::
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###########################################################################################################
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#Everything past this point is internal BS, probably best not to touch it unless you know what you're doing
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#set the default target as the default target, otherwise the topmost target will run
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.DEFAULT_GOAL::=all
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#system dependant bullshit
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ifeq ($(OS),Windows_NT)
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#windows' cmd commands
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mkdir=mkdir $(subst /,\,$(1)) > NUL 2>&1
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rm=del /F $(1) > NUL 2>&1
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rmdir=rd /S /Q $(1) > NUL 2>&1
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move=move /Y $(subst /,\,$(1)) $(subst /,\,$(2)) > NUL 2>&1
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copy=copy /Y /B $(subst /,\,$(1)) $(subst /,\,$(2)) > NUL 2>&1
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else
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#*nix terminal commands
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mkdir=mkdir -p $(1)
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rm=rm -f $(1)
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rmdir=rm -rf $(1)
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move=mv $(1) $(2)
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copy=cp $(1) $(2)
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endif
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#setup compiler and flags based on language
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ifeq ($(LANG),cpp)
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COMPILER_FLAGS::=$(CXXFLAGS)
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COMPILER::=$(CXX)
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else ifeq ($(LANG),c)
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COMPILER_FLAGS::=$(CFLAGS)
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COMPILER::=$(CC)
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endif
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ifeq ($(RELEASE),1)
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#a lot of false strict aliasing warnings from gcc 9
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COMPILER_FLAGS+=-O2 -Wno-strict-aliasing
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else ifeq ($(MEMCHK),1)
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#use asan to check memory leaks/invalid accesses
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LDFLAGS+=-fsanitize=address -fno-omit-frame-pointer -fno-optimize-sibling-calls
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COMPILER_FLAGS+=-O0 -g3 -ggdb -fsanitize=address -fno-omit-frame-pointer -fno-optimize-sibling-calls
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else
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#default target
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COMPILER_FLAGS+=-O0 -g3 -ggdb
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endif
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ifeq ($(SAVEFLAGS),1)
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CFLAGS_TMPFILE::=.cflags.tmp
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LDFLAGS_TMPFILE::=.ldflags.tmp
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OLD_COMPILEFLAGS::=$(file <$(CFLAGS_TMPFILE))
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OLD_LINKFLAGS::=$(file <$(LDFLAGS_TMPFILE))
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endif
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#add dependency tracking and include directories
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INTERNAL_COMPILERFLAGS=-c $(foreach dir,$(INCLUDE_DIRS),-I"$(dir)") -MMD -MP -MF"$(DEPDIR)/$(notdir $(patsubst %.o,%.d,$@))"
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INTERNAL_LINKFLAGS=$(foreach dir,$(LIBDIRS),-L"$(dir)")
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INTERNAL_SOURCES::=$(SOURCES) $(foreach source,$(SOURCE_DIRS),$(foreach ext,$(EXT),$(wildcard $(source)/*.$(ext))))
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OBJECTS::=$(addprefix $(OBJDIR)/,$(subst \,.,$(subst /,.,$(addsuffix .o,$(INTERNAL_SOURCES)))))
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ALL_COMPILEFLAGS=$(COMPILER_FLAGS) $(INTERNAL_COMPILERFLAGS)
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ALL_LINKFLAGS=$(INTERNAL_LINKFLAGS) $(LDFLAGS)
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#just a variable for a newline
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define \n
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endef
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.PHONY: cflags-update
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cflags-update:
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ifeq ($(SAVEFLAGS),1)
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ifneq ($(subst -MF"$(DEPDIR)/",-MF"$(DEPDIR)/cflags-update",$(ALL_COMPILEFLAGS)),$(OLD_COMPILEFLAGS))
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$(file >$(CFLAGS_TMPFILE),$(ALL_COMPILEFLAGS))
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endif
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$(CFLAGS_TMPFILE): cflags-update
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endif
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.PHONY: ldflags-update
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ldflags-update:
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ifeq ($(SAVEFLAGS),1)
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ifneq ($(ALL_LINKFLAGS),$(OLD_LINKFLAGS))
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$(file >$(LDFLAGS_TMPFILE),$(ALL_LINKFLAGS))
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endif
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$(LDFLAGS_TMPFILE): ldflags-update
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endif
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.PHONY: flags-update
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flags-update: cflags-update ldflags-update
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#Link executable
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$(MAIN_EXECUTABLE): $(OBJECTS) $(LDFLAGS_TMPFILE)
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$(COMPILER) $(OBJECTS) -o "$(basename $@)" $(ALL_LINKFLAGS) $(LDLIBS)
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ifeq ($(RELEASE),1)
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$(STRIP) --strip-all "$(MAIN_EXECUTABLE)"
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endif
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#Object target recipe
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define GENERATE_INDIVIDUAL_OBJECTS
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$$(OBJDIR)/$(subst \,.,$(subst /,.,$(1))).o: $(1) $(CFLAGS_TMPFILE)
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$$(COMPILER) $$(ALL_COMPILEFLAGS) "$$<" -o "$$@"
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endef
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#Create targets for object files
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$(foreach src,$(INTERNAL_SOURCES),$(eval $(call GENERATE_INDIVIDUAL_OBJECTS,$(src))))
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$(OBJECTS): | $(OBJDIR) $(DEPDIR)
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#Output directory creation
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$(OBJDIR):
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$(call mkdir,"$@")
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$(DEPDIR):
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$(call mkdir,"$@")
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.PHONY: clean
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clean::
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$(call rmdir,"$(DEPDIR)")
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$(call rmdir,"$(OBJDIR)")
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$(call rm,"$(MAIN_EXECUTABLE)")
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$(call rm,"$(MAIN_EXECUTABLE).exe")
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ifeq ($(SAVEFLAGS),1)
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$(call rm,"$(CFLAGS_TMPFILE)")
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$(call rm,"$(LDFLAGS_TMPFILE)")
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endif
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#header file dep tracking
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-include $(wildcard $(DEPDIR)/*.d)
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