add: Basic buildsystem

Makefile

+CFLAGS += -march=native -masm=intel -g -Og -fsanitize=address,signed-integer-overflow,undefined -pedantic -flto -Wall -Wextra -Werror -Wduplicated-cond -Wduplicated-branches -Wlogical-op -Wrestrict -Wnull-dereference -Wdouble-promotion -Wshadow -Wformat=2 -Wfloat-equal -Wundef -Wpointer-arith -Wcast-align -Wstrict-overflow=5 -Wwrite-strings -Wswitch-default -Wswitch-enum -Wconversion -Wunreachable-code -Winit-self -fno-strict-aliasing -Wno-unknown-warning-option
+CXXFLAGS += ${CFLAGS} -std=c++11 -std=c++17 -Wuseless-cast -Weffc++
+LFLAGS += -flto
+DEPFLAGS = -MT $@ -MMD -MP -MF $(patsubst ${OBJDIR}/%.o,${DEPDIR}/%.d,$@)
+
+CC ?= gcc
+CXX ?= g++
+
+MKDIR ?= mkdir -p
+
+INSTALL ?= install
+prefix ?= /usr
+
+SRCDIR ?= src
+APPDIR ?= ${SRCDIR}/app
+
+BINDIR ?= bin
+DEPDIR ?= dep
+OBJDIR ?= obj
+
+SOURCES := $(wildcard ${SRCDIR}/*.cpp) $(wildcard ${SRCDIR}/*.c) $(wildcard ${SRCDIR}/**/*.cpp) $(wildcard ${SRCDIR}/**/*.c)
+
+SRCOBJS := $(patsubst ${SRCDIR}/%.c,${OBJDIR}/%.o,$(patsubst ${SRCDIR}/%.cpp,${OBJDIR}/%.o,${SOURCES}))
+
+APPOBJS := $(filter $(patsubst ${SRCDIR}/%,${OBJDIR}/%,${APPDIR})/%,${SRCOBJS})
+OBJECTS := $(filter-out $(patsubst ${SRCDIR}/%,${OBJDIR}/%,${APPDIR})/%,${SRCOBJS})
+
+TARGETS := $(patsubst $(patsubst ${SRCDIR}/%,${OBJDIR}/%,${APPDIR})/%.o,${BINDIR}/%,${APPOBJS})
+
+CFLAGS += -I${SRCDIR}
+
+MAKEFLAGS += --no-builtin-rules
+.SUFFIXES:
+
+.PHONY: all clean
+all: ${TARGETS}
+
+${BINDIR}/%: $(patsubst ${SRCDIR}/%,${OBJDIR}/%,${APPDIR})/%.o ${OBJECTS}
+	${MKDIR} ${@D} && ${CXX} ${CXXFLAGS} ${LFLAGS} -o $@ $< ${OBJECTS} && touch $@
+
+${OBJDIR}/%.o: ${SRCDIR}/%.cpp ${DEPDIR}/%.d
+	${MKDIR} ${@D} && ${MKDIR} $(patsubst ${OBJDIR}/%,${DEPDIR}/%,${@D}) && ${CXX} ${CXXFLAGS} ${DEPFLAGS} ${LFLAGS} -o $@ -c $< && touch $@
+
+${OBJDIR}/%.o: ${SRCDIR}/%.c ${DEPDIR}/%.d
+	${MKDIR} ${@D} && ${MKDIR} $(patsubst ${OBJDIR}/%,${DEPDIR}/%,${@D}) && ${CC} ${CFLAGS} ${DEPFLAGS} ${LFLAGS} -o $@ -c $< && touch $@
+
+
+${DEPDIR}/%.d: ;
+.PRECIOUS: ${DEPDIR}/%.d ${OBJDIR}/%.o
+
+include $(wildcard $(patsubst ${OBJDIR}/%.o,${DEPDIR}/%.d,${SRCOBJS}))
+
+clean:
+	rm -rf ${BINDIR}
+	rm -rf ${OBJDIR}
+	rm -rf ${DEPDIR}
+
+style:
+	-astyle --mode=c --options=none --recursive -s4 -f -j -k1 -W3 -p -U -H ${SRCDIR}/*.c
+	-astyle --mode=c --options=none --recursive -s4 -f -j -k1 -W3 -p -U -H ${SRCDIR}/*.h
+	-astyle --mode=c --options=none --recursive -s4 -f -j -k1 -W3 -p -U -H ${SRCDIR}/*.cpp
+	-astyle --mode=c --options=none --recursive -s4 -f -j -k1 -W3 -p -U -H ${SRCDIR}/*.hpp
+
+install:
+	${INSTALL} -D -o root -g root -m 700 -t ${DESTDIR}${prefix}/bin ${TARGETS}

src/app/rmrf.cpp

+int main() {
+    return 0;
+}