Makefile

CC = clang
CXX = clang++
AR = ar rcs
STRIP = strip
LD = clang++
LDFLAGS =
SHELL = bash
RM = rm -rf
CP = cp -f
CFLAGS = -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64
CXXFLAGS =

ifeq ($(shell uname -s | cut -d "-" -f 1 | cut -d "_" -f 2), NT)
ext = .exe
else
ext = 
endif

ifeq ($(shell uname -m | tr -d "\n"), x86_64)
arch = x64
else
ifeq ($(shell uname -m | tr -d "\n"), i686)
arch = x86
else
arch = unknow
endif
endif

EROFS_DEF_DEFINES = \
    -Wall \
    -Werror \
    -Wno-error=\#warnings \
    -Wno-ignored-qualifiers \
    -Wno-pointer-arith \
    -Wno-unused-parameter \
    -Wno-unused-function \
    -DHAVE_FALLOCATE \
    -DHAVE_LINUX_TYPES_H \
    -DHAVE_LIBSELINUX \
    -DHAVE_LIBUUID \
    -DLZ4_ENABLED \
    -DLZ4HC_ENABLED \
    -DWITH_ANDROID \
    -DHAVE_MEMRCHR \
    -DHAVE_SYS_IOCTL_H \
    -DHAVE_LLISTXATTR \
    -DHAVE_LGETXATTR
ifeq ($(shell [ -e "/usr/local/lib/liblzma.a" ] && echo "true"), true)
# if installed xz from source then enabled liblzma
EROFS_DEF_DEFINES += -DHAVE_LIBLZMA
LDFLAGS += -L/usr/local/lib -llzma
endif
# Add cygwin remove unsupport flags
ifeq ($(shell uname -s | cut -d "-" -f 1), CYGWIN_NT)
EROFS_DEF_REMOVE = -DHAVE_LINUX_TYPES_H -DHAVE_FALLOCATE
EROFS_DEF_DEFINES += -Wno-address-of-temporary
ifeq ($(shell uname -o | tr -d "\n"), Cygwin)
ifeq ($(shell [ -d "winfsp" ] && echo "true"), true)
EROFS_DEF_DEFINES += -DCYGFUSE -Wno-missing-braces
endif
endif
override EROFS_DEF_DEFINES := $(filter-out $(EROFS_DEF_REMOVE),$(EROFS_DEF_DEFINES))
LDFLAGS += -liconv
endif

# Add on for extract.erofs
CXXFLAGS += -DNDEBUG

ifeq ($(shell uname -s | cut -d "-" -f 1), CYGWIN_NT)
CXXFLAGS += -stdlib=libc++ -static -DHAVE_UTIMENSAT
endif

ifeq ($(shell uname), Linux)
# [[likely]] [[unlikely]]
CXXFLAGS += -Wno-unknown-attributes
endif

override CFLAGS := $(CFLAGS) $(EROFS_DEF_DEFINES)
override CXXFLAGS := $(CXXFLAGS) $(EROFS_DEF_DEFINES) -std=c++17 

INCLUDES = \
    -I./include \
    -I./libext2_uuid \
    -include"erofs-utils-version.h" \
    -I./lz4/lib \
    -I./libselinux/include \
    -I./libcutils/include \
    -I./extract/extract/include

ifeq ($(shell uname -o | tr -d "\n"), Cygwin)
ifeq ($(shell [ -d "winfsp" ] && echo "true"), true)
INCLUDES += -I./winfsp/$(arch)/usr/include/fuse
endif
endif

liberofs_src = $(shell find lib -name \*.c)
liberofs_obj = $(patsubst %.c,obj/%.o,$(liberofs_src))

mkfs_src = $(shell find mkfs -name \*.c)
mkfs_obj = $(patsubst %.c,obj/%.o,$(mkfs_src))

fsck_src = $(shell find fsck -name \*.c)
fsck_obj = $(patsubst %.c,obj/%.o,$(fsck_src))

dump_src = $(shell find dump -name \*.c)
dump_obj = $(patsubst %.c,obj/%.o,$(dump_src))

fuse_src = $(shell find fuse -name \*.c)
fuse_obj = $(patsubst %.c,obj/%.o,$(fuse_src))

# Addon extract.erofs
ifeq ($(shell [ -d "extract" ] && echo "true"), true)
extract_src = $(shell find extract/extract -name \*.cpp)
extract_obj = $(patsubst %.cpp,obj/%.o,$(extract_src))
endif

version_header = erofs-utils-version.h
all_lib_prefix = \
    erofs \
    cutils \
    base \
    ext2_uuid \
    log \
    lz4 \
    selinux
all_lib_prefix += pcre
all_lib = $(patsubst %,.lib/lib%.a,$(all_lib_prefix))

all_bin_prefix = \
    mkfs \
    fsck \
    dump
ifeq ($(shell [ -d "extract" ] && echo "true"), true)
all_bin_prefix += extract
endif

ifeq ($(shell uname -o | tr -d "\n"), Cygwin)

ifeq ($(shell [ -d "winfsp" ] && echo "true"), true)
all_bin_prefix += fuse
endif

all_bin = $(patsubst %,bin/%.erofs$(ext),$(all_bin_prefix))
ifeq ($(shell uname -s | cut -d "-" -f 1), CYGWIN_NT)
all_bin += bin/cygwin1.dll
endif
ifeq ($(shell [ -d "winfsp" ] && echo "true"), true)
all_bin+= bin/cygfuse-2.8.dll
endif

endif

strip_bin = $(filter-out %.dll,$(all_bin))

.PHONY: all

all: lib bin

lib: $(version_header) $(all_lib)

bin: $(all_bin)

strip-all: bin
	@for i in $(strip_bin); do \
	  echo -e "\tSTRIP    \t$$i"; \
	  $(STRIP) --strip-unneeded $$i; \
	done

obj/%.o: %.c
	@mkdir -p `dirname $@`
	@echo -e "\t    CC\t    $@"
	@$(CC) $(CFLAGS) $(INCLUDES) -c $< -o $@

obj/%.o: %.cpp
	@mkdir -p `dirname $@`
	@echo -e "\t    CC\t    $@"
	@$(CXX) $(CXXFLAGS) $(INCLUDES) -include"cygprefix.h" -c $< -o $@

erofs-utils-version.h:
	@echo -e "\tGEN    \t$@"
	@echo "#define PACKAGE_VERSION \"$(shell ./scripts/cyg-get-version-number)\"" > $@

.lib/liberofs.a: $(liberofs_obj)
	@mkdir -p `dirname $@`
	@echo -e "\tAR    \t$@"
	@$(AR) $@ $^

.lib/libbase.a:
	@mkdir -p `dirname $@`
	@$(MAKE) -C libbase
	@$(CP) ./libbase/$@ $@

.lib/libcutils.a:
	@mkdir -p `dirname $@`
	@$(MAKE) -C libcutils
	@$(CP) ./libcutils/$@ $@

.lib/libext2_uuid.a:
	@mkdir -p `dirname $@`
	@$(MAKE) -C libext2_uuid
	@$(CP) ./libext2_uuid/$@ $@

.lib/liblog.a:
	@mkdir -p `dirname $@`
	@$(MAKE) -C logging
	@$(CP) ./logging/$@ $@

.lib/liblz4.a:
	@mkdir -p `dirname $@`
	@$(MAKE) -C lz4 lib
	@$(CP) ./lz4/lib/`basename $@` $@

# I have no interest support this on cygwin
# cause aosp is also not support lzma compression
# you fan fill this up if you want lzma compression
.lib/liblzma.a:

.lib/libselinux.a:
	@mkdir -p `dirname $@`
	@$(MAKE) -C libselinux
	@$(CP) ./libselinux/$@ $@ 

# Cygwin does not support libpcre.a
# We can only link dynamicly
# But with libpcre source, we still can
# link this program static
.lib/libpcre.a:
	@mkdir -p `dirname $@`
	@cd libpcre && ./autogen.sh && ./configure && $(MAKE) libpcre.la
	@$(CP) libpcre/.libs/`basename $@` $@

bin/mkfs.erofs$(ext): $(mkfs_obj) $(all_lib)
	@mkdir -p `dirname $@`
	@echo -e "\tLD\t    $@"
	@$(LD) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)

bin/fsck.erofs$(ext): $(fsck_obj) $(all_lib)
	@mkdir -p `dirname $@`
	@echo -e "\tLD\t    $@"
	@$(LD) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)

bin/dump.erofs$(ext): $(dump_obj) $(all_lib)
	@mkdir -p `dirname $@`
	@echo -e "\tLD\t    $@"
	@$(LD) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)

# Add on unoffical extract program
bin/extract.erofs$(ext): $(extract_obj) $(all_lib)
	@mkdir -p `dirname $@`
	@echo -e "\tLD\t    $@"
	@$(LD) $(CXXFLAGS) -o $@ $^ $(LDFLAGS) -lntdll

fuse_lib_a = winfsp/$(arch)/usr/lib/libfuse-2.8.dll.a
# No nesseary to build fuse but cygwin provide cygfuse we can still use this
bin/fuse.erofs$(ext): $(fuse_obj) $(all_lib) $(fuse_lib_a)
	@mkdir -p `dirname $@`
	@echo -e "\tLD\t    $@"
	@$(LD) $(CXXFLAGS) -o $@ $^ $(LDFLAGS)

# cygfuse-2.8.dll is for fuse.erofs
bin/cygfuse-2.8.dll:
	@mkdir -p `dirname $@`
	@echo -e "\tCOPY    \t$@"
	@$(CP) winfsp/$(arch)/usr/$@ $@

# cygwin1.dll is needed
bin/cygwin1.dll:
	@mkdir -p `dirname $@`
	@echo -e "\tCOPY    \t$@"
	@$(CP) /$@ $@

clean: 
	@echo -e "\tRM    \tobj .lib bin"
	@$(RM) obj .lib bin erofs-utils-version.h
	@$(MAKE) -C libbase clean
	@$(MAKE) -C libcutils clean
	@$(MAKE) -C libext2_uuid clean
	@$(MAKE) -C logging clean
	@$(MAKE) -C lz4 clean
	@$(MAKE) -C libselinux clean
ifeq ($(shell [ -e "libpcre/Makefile" ] && echo "true"), true)
	@$(MAKE) -C libpcre clean
endif