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AR ?= ar
CHMOD ?= chmod
CHOWN ?= chown
INSTALL ?= install
MKDIR ?= mkdir
RM ?= rm
STRIP ?= strip
TOUCH ?= touch
OS := $(shell uname -s)
ifeq ($(OS),Linux)
UTILS := utils
INSTALLUTILS := install-utils
else
UTILS :=
INSTALLUTILS :=
endif
ifeq ($(NDEBUG),1)
OPT_FLAGS := -O2 -DNDEBUG
else
OPT_FLAGS := -O0 -g -DDEBUG -fno-omit-frame-pointer
endif
ifeq ($(LTO),1)
LTO_FLAGS := -flto
else
LTO_FLAGS :=
endif
# https://www.gnu.org/prep/standards/html_node/Directory-Variables.html
DESTDIR ?=
PREFIX ?= /usr/local
EXEC_PREFIX ?= $(PREFIX)
DATAROOTDIR ?= $(PREFIX)/share
DATADIR ?= $(DATAROOTDIR)
BINDIR ?= $(EXEC_PREFIX)/bin
SBINDIR ?= /sbin
MANDIR ?= $(DATAROOTDIR)/man
MAN1DIR ?= $(MANDIR)/man1
INSTALLBINDIR ?= $(DESTDIR)$(BINDIR)
INSTALLSBINDIR ?= $(DESTDIR)$(SBINDIR)
INSTALLMAN1DIR ?= $(DESTDIR)$(MAN1DIR)
BUILDDIR := build
SRC_C = \
lib/buffer.c \
lib/crc32b.c \
lib/debug.c \
lib/fuse_dirents.c \
lib/fuse_lowlevel.c \
lib/fuse_opt.c \
lib/fuse_session.c \
lib/fuse_signals.c \
lib/helper.c \
lib/mount.c
SRC_CXX = \
lib/fuse.cpp \
lib/cpu.cpp \
lib/fuse_config.cpp \
lib/fuse_loop.cpp \
lib/fuse_msgbuf.cpp \
lib/pin_threads.cpp \
lib/format.cpp \
lib/node.cpp \
lib/maintenance_thread.cpp
OBJS_C = $(SRC_C:lib/%.c=$(BUILDDIR)/%.o)
OBJS_CXX = $(SRC_CXX:lib/%.cpp=$(BUILDDIR)/%.o)
DEPS_C = $(SRC_C:lib/%.c=$(BUILDDIR)/%.d)
DEPS_CXX = $(SRC_CXX:lib/%.cpp=$(BUILDDIR)/%.d)
CPPFLAGS ?=
CFLAGS ?= \
$(OPT_FLAGS) \
$(LTO_FLAGS) \
-Wall \
-pipe
override CFLAGS += \
-std=gnu99 \
-MMD \
-MP
CXXFLAGS ?= \
$(OPT_FLAGS) \
$(LTO_FLAGS) \
-Wall \
-pipe
override CXXFLAGS += \
-std=c++17 \
-MMD \
-MP
FUSERMOUNT_DIR := $(BINDIR)
FUSE_FLAGS := \
-Iinclude \
-I$(BUILDDIR) \
-D_REENTRANT \
-D_FILE_OFFSET_BITS=64 \
-DFUSERMOUNT_DIR=\"$(FUSERMOUNT_DIR)\"
LDFLAGS ?=
LDLIBS := \
-lrt \
-latomic \
-pthread
all: $(BUILDDIR)/libfuse.a $(UTILS)
$(BUILDDIR)/stamp:
$(MKDIR) -p $(BUILDDIR)
$(TOUCH) $@
$(BUILDDIR)/libfuse.a: $(OBJS_C) $(OBJS_CXX)
$(AR) rcs $(BUILDDIR)/libfuse.a $(OBJS_C) $(OBJS_CXX)
.PHONY: utils
utils: mergerfs-fusermount mount.mergerfs
$(BUILDDIR)/mergerfs-fusermount: util/fusermount.c lib/mount_util.c
$(CC) $(CFLAGS) $(FUSE_FLAGS) -Ilib -o $(BUILDDIR)/mergerfs-fusermount util/fusermount.c lib/mount_util.c
mergerfs-fusermount: $(BUILDDIR)/mergerfs-fusermount
$(BUILDDIR)/mount.mergerfs: $(BUILDDIR)/libfuse.a util/mount.mergerfs.c
$(CC) $(CFLAGS) $(FUSE_FLAGS) -o $(BUILDDIR)/mount.mergerfs util/mount.mergerfs.c $(BUILDDIR)/libfuse.a $(LDFLAGS)
mount.mergerfs: $(BUILDDIR)/mount.mergerfs
$(BUILDDIR)/%.o: lib/%.c | $(BUILDDIR)/stamp
$(CC) $(CFLAGS) $(FUSE_FLAGS) -c $< -o $@
$(BUILDDIR)/%.o: lib/%.cpp | $(BUILDDIR)/stamp
$(CXX) $(CXXFLAGS) $(FUSE_FLAGS) -c $< -o $@
.PHONY: clean
clean:
$(RM) -rf $(BUILDDIR)
.PHONY: distclean
distclean: clean
.PHONY: strip
strip:
$(STRIP) --strip-all $(BUILDDIR)/mount.mergerfs
$(STRIP) --strip-all $(BUILDDIR)/mergerfs-fusermount
install-utils: mergerfs-fusermount mount.mergerfs strip
$(INSTALL) -D $(BUILDDIR)/mergerfs-fusermount "$(INSTALLBINDIR)/mergerfs-fusermount"
$(INSTALL) -D $(BUILDDIR)/mount.mergerfs "$(INSTALLSBINDIR)/mount.mergerfs"
$(CHOWN) root:root "$(INSTALLBINDIR)/mergerfs-fusermount"
$(CHMOD) u+s "$(INSTALLBINDIR)/mergerfs-fusermount"
install: $(INSTALLUTILS)
.PHONY: objects strip utils install install-utils
-include $(DEPS_C) $(DEPS_CXX)