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Change makefile to choose between c and c++ settings based on LANG variable

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rexy712 2019-12-21 18:02:10 -08:00
parent 8d3e059a9c
commit 904ecb64b4
1 changed files with 40 additions and 17 deletions
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57
makefile.basic
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@ -24,12 +24,17 @@ OBJDIR::=obj
DEPDIR::=$(OBJDIR)/dep
LIBDIR::=lib
INCLUDE_DIRS::=include
CFLAGS::=-g -std=c18 -Wall -pedantic -Wextra
CXXFLAGS::=-g -std=c++17 -Wall -pedantic -Wextra
EXT::=cpp
LANG::=$(EXT)
MAIN_EXECUTABLE::=tester
RELEASE?=0
MEMCHK?=0
ifneq ($(WINDOWS),1)
#*nix settings
CC::=gcc
CXX::=g++
LDLIBS::=
LDFLAGS::=
@ -38,7 +43,9 @@ ifneq ($(WINDOWS),1)
AR?=ar
AS?=as
else
#windows settings
MINGW_PREFIX::=x86_64-w64-mingw32-
CC::=$(MINGW_PREFIX)gcc
CXX::=$(MINGW_PREFIX)g++
LDLIBS::=
LDFLAGS::=
@ -49,23 +56,15 @@ else
MAIN_EXECUTABLE::=$(MAIN_EXECUTABLE).exe
endif
ifeq ($(RELEASE),1)
#a lot of false strict aliasing warnings from gcc 9
CXXFLAGS+=-O2 -Wno-strict-aliasing
else ifeq ($(MEMCHK),1)
LDFLAGS+=-fsanitize=address -fno-omit-frame-pointer -fno-optimize-sibling-calls
CXXFLAGS+=-O0 -g3 -ggdb -fsanitize=address -fno-omit-frame-pointer -fno-optimize-sibling-calls
else
CXXFLAGS+=-O0 -g3 -ggdb
endif
ifeq ($(OS),Windows_NT)
#windows' cmd commands
mkdir=mkdir $(subst /,\,$(1)) > NUL 2>&1
rm=del /F $(1) > NUL 2>&1
rmdir=rd /S /Q $(1) > NUL 2>&1
move=move /Y $(subst /,\,$(1)) $(subst /,\,$(2)) > NUL 2>&1
copy=copy /Y /B $(subst /,\,$(1)) $(subst /,\,$(2)) > NUL 2>&1
else
#*nix terminal commands
mkdir=mkdir -p $(1)
rm=rm -f $(1)
rmdir=rm -rf $(1)
@ -73,30 +72,53 @@ else
copy=cp $(1) $(2)
endif
INTERNAL_CXXFLAGS=-c $(foreach dir,$(INCLUDE_DIRS),-I"$(dir)") -MMD -MP -MF"$(DEPDIR)/$(notdir $(patsubst %.o,%.d,$@))"
#setup compiler and flags based on language
ifeq ($(LANG),cpp)
COMPILER_FLAGS::=$(CXXFLAGS)
COMPILER::=$(CXX)
else ifeq ($(LANG),c)
COMPILER_FLAGS::=$(CFLAGS)
COMPILER::=$(CC)
endif
ifeq ($(RELEASE),1)
#a lot of false strict aliasing warnings from gcc 9
COMPLIER_FLAGS+=-O2 -Wno-strict-aliasing
else ifeq ($(MEMCHK),1)
#use asan to check memory leaks/invalid accesses
LDFLAGS+=-fsanitize=address -fno-omit-frame-pointer -fno-optimize-sibling-calls
COMPLIER_FLAGS+=-O0 -g3 -ggdb -fsanitize=address -fno-omit-frame-pointer -fno-optimize-sibling-calls
else
#default target
COMPILER_FLAGS+=-O0 -g3 -ggdb
endif
#add dependency tracking and include directories
INTERNAL_COMPILERFLAGS=-c $(foreach dir,$(INCLUDE_DIRS),-I"$(dir)") -MMD -MP -MF"$(DEPDIR)/$(notdir $(patsubst %.o,%.d,$@))"
SOURCES::=$(foreach source,$(SOURCE_DIRS),$(foreach ext,$(EXT),$(wildcard $(source)/*.$(ext))))
OBJECTS::=$(addprefix $(OBJDIR)/,$(subst \,.,$(subst /,.,$(addsuffix .o,$(SOURCES)))))
.PHONY: all
all: $(MAIN_EXECUTABLE)
ifeq ($(RELEASE),1)
$(CXX) $(LDFLAGS) $^ -o "$(basename $(MAIN_EXECUTABLE))" $(LDLIBS)
$(STRIP) --strip-all "$(MAIN_EXECUTABLE)"
endif
#Link executable
$(MAIN_EXECUTABLE): $(OBJECTS)
$(CXX) $(LDFLAGS) $^ -o "$(basename $@)" $(LDLIBS)
$(COMPILER) $(LDFLAGS) $^ -o "$(basename $@)" $(LDLIBS)
#Object target recipe
define GENERATE_OBJECTS
$$(OBJDIR)/$(subst \,.,$(subst /,.,$(1))).%.o: $(1)/%
$$(CXX) $$(CXXFLAGS) $$(INTERNAL_CXXFLAGS) "$$<" -o "$$@"
$$(COMPILER) $$(COMPILER_FLAGS) $$(INTERNAL_COMPILERFLAGS) "$$<" -o "$$@"
endef
#Create targets for object files
$(foreach dir,$(SOURCE_DIRS),$(eval $(call GENERATE_OBJECTS,$(dir))))
$(OBJECTS): | $(OBJDIR) $(DEPDIR)
#Output directory creation
$(OBJDIR):
$(call mkdir,"$@")
$(DEPDIR):
@ -107,9 +129,10 @@ clean:
$(call rmdir,"$(DEPDIR)")
$(call rmdir,"$(OBJDIR)")
$(call rm,"$(MAIN_EXECUTABLE)")
ifneq ($(OS),Windows_NT)
ifneq ($(WINDOWS),1)
$(call rm,"$(MAIN_EXECUTABLE).exe")
endif
#header file dep tracking
-include $(wildcard $(DEPDIR)/*.d)