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      1      1.1  christos # ################################################################
      2      1.1  christos # Copyright (c) Meta Platforms, Inc. and affiliates.
      3      1.1  christos # All rights reserved.
      4      1.1  christos #
      5      1.1  christos # This source code is licensed under both the BSD-style license (found in the
      6      1.1  christos # LICENSE file in the root directory of this source tree) and the GPLv2 (found
      7      1.1  christos # in the COPYING file in the root directory of this source tree).
      8      1.1  christos # You may select, at your option, one of the above-listed licenses.
      9      1.1  christos # ##########################################################################
     10      1.1  christos # zstd : Command Line Utility, supporting gzip-like arguments
     11      1.1  christos # zstd32 : Same as zstd, but forced to compile in 32-bits mode
     12      1.1  christos # zstd-nolegacy : zstd without support of decompression of legacy versions
     13      1.1  christos # zstd-small : minimal zstd without dictionary builder and benchmark
     14      1.1  christos # zstd-compress : compressor-only version of zstd
     15      1.1  christos # zstd-decompress : decompressor-only version of zstd
     16      1.1  christos # ##########################################################################
     17      1.1  christos 
     18      1.1  christos # default target (when running `make` with no argument)
     19      1.1  christos zstd-release:
     20      1.1  christos 
     21      1.1  christos LIBZSTD_MK_DIR = ../lib
     22      1.1  christos include $(LIBZSTD_MK_DIR)/libzstd.mk
     23      1.1  christos 
     24      1.1  christos ifeq ($(shell $(CC) -v 2>&1 | $(GREP) -c "gcc version "), 1)
     25      1.1  christos   ALIGN_LOOP = -falign-loops=32
     26      1.1  christos else
     27      1.1  christos   ALIGN_LOOP =
     28      1.1  christos endif
     29      1.1  christos 
     30      1.1  christos ZSTDLIB_COMMON_SRC := $(sort $(ZSTD_COMMON_FILES))
     31      1.1  christos ZSTDLIB_COMPRESS_SRC := $(sort $(ZSTD_COMPRESS_FILES))
     32      1.1  christos ZSTDLIB_DECOMPRESS_SRC := $(sort $(ZSTD_DECOMPRESS_FILES))
     33      1.1  christos ZSTDLIB_CORE_SRC := $(sort $(ZSTD_DECOMPRESS_FILES) $(ZSTD_COMMON_FILES) $(ZSTD_COMPRESS_FILES))
     34      1.1  christos ZDICT_SRC := $(sort $(ZSTD_DICTBUILDER_FILES))
     35      1.1  christos ZSTDLEGACY_SRC := $(sort $(ZSTD_LEGACY_FILES))
     36      1.1  christos 
     37      1.1  christos # Sort files in alphabetical order for reproducible builds
     38      1.1  christos ZSTDLIB_FULL_SRC = $(sort $(ZSTDLIB_CORE_SRC) $(ZSTDLEGACY_SRC) $(ZDICT_SRC))
     39      1.1  christos ZSTDLIB_LOCAL_SRC = $(notdir $(ZSTDLIB_FULL_SRC))
     40      1.1  christos ZSTDLIB_LOCAL_OBJ0 := $(ZSTDLIB_LOCAL_SRC:.c=.o)
     41      1.1  christos ZSTDLIB_LOCAL_OBJ := $(ZSTDLIB_LOCAL_OBJ0:.S=.o)
     42      1.1  christos 
     43      1.1  christos ZSTD_CLI_SRC := $(sort $(wildcard *.c))
     44      1.1  christos ZSTD_CLI_OBJ := $(ZSTD_CLI_SRC:.c=.o)
     45      1.1  christos 
     46      1.1  christos ZSTD_ALL_SRC = $(ZSTDLIB_LOCAL_SRC) $(ZSTD_CLI_SRC)
     47      1.1  christos ZSTD_ALL_OBJ0 := $(ZSTD_ALL_SRC:.c=.o)
     48      1.1  christos ZSTD_ALL_OBJ := $(ZSTD_ALL_OBJ0:.S=.o)
     49      1.1  christos 
     50      1.1  christos # Define *.exe as extension for Windows systems
     51      1.1  christos ifneq (,$(filter Windows%,$(OS)))
     52      1.1  christos   EXT =.exe
     53      1.1  christos   RES64_FILE = windres/zstd64.res
     54      1.1  christos   RES32_FILE = windres/zstd32.res
     55      1.1  christos ifneq (,$(filter x86_64%,$(shell $(CC) -dumpmachine)))
     56      1.1  christos     RES_FILE = $(RES64_FILE)
     57      1.1  christos else
     58      1.1  christos     RES_FILE = $(RES32_FILE)
     59      1.1  christos endif
     60      1.1  christos else
     61      1.1  christos   EXT =
     62      1.1  christos endif
     63      1.1  christos 
     64      1.1  christos # thread detection
     65      1.1  christos NO_THREAD_MSG := ==> no threads, building without multithreading support
     66      1.1  christos HAVE_PTHREAD := $(shell printf '$(NUM_SYMBOL)include <pthread.h>\nint main(void) { return 0; }' > have_pthread.c && $(CC) $(FLAGS) -o have_pthread$(EXT) have_pthread.c -pthread 2> $(VOID) && rm have_pthread$(EXT) && echo 1 || echo 0; rm have_pthread.c)
     67      1.1  christos HAVE_THREAD := $(shell [ "$(HAVE_PTHREAD)" -eq "1" -o -n "$(filter Windows%,$(OS))" ] && echo 1 || echo 0)
     68      1.1  christos ifeq ($(HAVE_THREAD), 1)
     69      1.1  christos   THREAD_MSG := ==> building with threading support
     70      1.1  christos   THREAD_CPP := -DZSTD_MULTITHREAD
     71      1.1  christos   THREAD_LD := -pthread
     72      1.1  christos else
     73      1.1  christos   THREAD_MSG := $(NO_THREAD_MSG)
     74      1.1  christos endif
     75      1.1  christos 
     76      1.1  christos # zlib detection
     77      1.1  christos NO_ZLIB_MSG := ==> no zlib, building zstd without .gz support
     78      1.1  christos HAVE_ZLIB ?= $(shell printf '$(NUM_SYMBOL)include <zlib.h>\nint main(void) { return 0; }' > have_zlib.c && $(CC) $(FLAGS) -o have_zlib$(EXT) have_zlib.c -lz 2> $(VOID) && rm have_zlib$(EXT) && echo 1 || echo 0; rm have_zlib.c)
     79      1.1  christos ifeq ($(HAVE_ZLIB), 1)
     80      1.1  christos   ZLIB_MSG := ==> building zstd with .gz compression support
     81      1.1  christos   ZLIBCPP = -DZSTD_GZCOMPRESS -DZSTD_GZDECOMPRESS
     82      1.1  christos   ZLIBLD = -lz
     83      1.1  christos else
     84      1.1  christos   ZLIB_MSG := $(NO_ZLIB_MSG)
     85      1.1  christos endif
     86      1.1  christos 
     87      1.1  christos # lzma detection
     88      1.1  christos NO_LZMA_MSG := ==> no liblzma, building zstd without .xz/.lzma support
     89      1.1  christos HAVE_LZMA ?= $(shell printf '$(NUM_SYMBOL)include <lzma.h>\nint main(void) { return 0; }' > have_lzma.c && $(CC) $(FLAGS) -o have_lzma$(EXT) have_lzma.c -llzma 2> $(VOID) && rm have_lzma$(EXT) && echo 1 || echo 0; rm have_lzma.c)
     90      1.1  christos ifeq ($(HAVE_LZMA), 1)
     91      1.1  christos   LZMA_MSG := ==> building zstd with .xz/.lzma compression support
     92      1.1  christos   LZMACPP = -DZSTD_LZMACOMPRESS -DZSTD_LZMADECOMPRESS
     93      1.1  christos   LZMALD = -llzma
     94      1.1  christos else
     95      1.1  christos   LZMA_MSG := $(NO_LZMA_MSG)
     96      1.1  christos endif
     97      1.1  christos 
     98      1.1  christos # lz4 detection
     99      1.1  christos NO_LZ4_MSG := ==> no liblz4, building zstd without .lz4 support
    100      1.1  christos HAVE_LZ4 ?= $(shell printf '$(NUM_SYMBOL)include <lz4frame.h>\n$(NUM_SYMBOL)include <lz4.h>\nint main(void) { return 0; }' > have_lz4.c && $(CC) $(FLAGS) -o have_lz4$(EXT) have_lz4.c -llz4 2> $(VOID) && rm have_lz4$(EXT) && echo 1 || echo 0; rm have_lz4.c)
    101      1.1  christos ifeq ($(HAVE_LZ4), 1)
    102      1.1  christos   LZ4_MSG := ==> building zstd with .lz4 compression support
    103      1.1  christos   LZ4CPP = -DZSTD_LZ4COMPRESS -DZSTD_LZ4DECOMPRESS
    104      1.1  christos   LZ4LD = -llz4
    105      1.1  christos else
    106      1.1  christos   LZ4_MSG := $(NO_LZ4_MSG)
    107      1.1  christos endif
    108      1.1  christos 
    109      1.1  christos # explicit backtrace enable/disable for Linux & Darwin
    110      1.1  christos ifeq ($(BACKTRACE), 0)
    111      1.1  christos   DEBUGFLAGS += -DBACKTRACE_ENABLE=0
    112      1.1  christos endif
    113      1.1  christos ifeq (,$(filter Windows%, $(OS)))
    114      1.1  christos ifeq ($(BACKTRACE), 1)
    115      1.1  christos   DEBUGFLAGS += -DBACKTRACE_ENABLE=1
    116      1.1  christos   DEBUGFLAGS_LD += -rdynamic
    117      1.1  christos endif
    118      1.1  christos endif
    119      1.1  christos 
    120      1.1  christos SET_CACHE_DIRECTORY = \
    121      1.1  christos    +$(MAKE) --no-print-directory $@ \
    122      1.1  christos     BUILD_DIR=obj/$(HASH_DIR) \
    123      1.1  christos     CPPFLAGS="$(CPPFLAGS)" \
    124      1.1  christos     CFLAGS="$(CFLAGS)" \
    125      1.1  christos     LDFLAGS="$(LDFLAGS)" \
    126      1.1  christos     LDLIBS="$(LDLIBS)" \
    127      1.1  christos     ZSTD_ALL_SRC="$(ZSTD_ALL_SRC)"
    128      1.1  christos 
    129      1.1  christos 
    130      1.1  christos .PHONY: all
    131      1.1  christos all: zstd zstd-compress zstd-decompress zstd-small
    132      1.1  christos 
    133      1.1  christos .PHONY: allVariants
    134      1.1  christos allVariants: all zstd-frugal zstd-nolegacy zstd-dictBuilder
    135      1.1  christos 
    136      1.1  christos .PHONY: zstd  # must always be run
    137      1.1  christos zstd : CPPFLAGS += $(THREAD_CPP) $(ZLIBCPP) $(LZMACPP) $(LZ4CPP)
    138      1.1  christos zstd : LDFLAGS += $(THREAD_LD) $(DEBUGFLAGS_LD)
    139      1.1  christos zstd : LDLIBS += $(ZLIBLD) $(LZMALD) $(LZ4LD)
    140      1.1  christos zstd : CPPFLAGS += -DZSTD_LEGACY_SUPPORT=$(ZSTD_LEGACY_SUPPORT)
    141      1.1  christos ifneq (,$(filter Windows%,$(OS)))
    142      1.1  christos zstd : $(RES_FILE)
    143      1.1  christos endif
    144      1.1  christos 
    145      1.1  christos ifndef BUILD_DIR
    146      1.1  christos # generate BUILD_DIR from flags
    147      1.1  christos 
    148      1.1  christos zstd:
    149      1.1  christos 	$(SET_CACHE_DIRECTORY)
    150      1.1  christos 
    151      1.1  christos else
    152      1.1  christos # BUILD_DIR is defined
    153      1.1  christos 
    154      1.1  christos ZSTD_OBJ := $(addprefix $(BUILD_DIR)/, $(ZSTD_ALL_OBJ))
    155      1.1  christos $(BUILD_DIR)/zstd : $(ZSTD_OBJ)
    156      1.1  christos 	@echo "$(THREAD_MSG)"
    157      1.1  christos 	@echo "$(ZLIB_MSG)"
    158      1.1  christos 	@echo "$(LZMA_MSG)"
    159      1.1  christos 	@echo "$(LZ4_MSG)"
    160      1.1  christos 	@echo LINK $@
    161      1.1  christos 	$(CC) $(FLAGS) $^ $(LDLIBS) -o $@$(EXT)
    162      1.1  christos 
    163      1.1  christos ifeq ($(HAVE_HASH),1)
    164      1.1  christos SRCBIN_HASH = $(shell cat $(BUILD_DIR)/zstd$(EXT) 2> $(VOID) | $(HASH) | cut -f 1 -d " ")
    165      1.1  christos DSTBIN_HASH = $(shell cat zstd$(EXT) 2> $(VOID) | $(HASH) | cut -f 1 -d " ")
    166      1.1  christos BIN_ISDIFFERENT = $(if $(filter $(SRCBIN_HASH),$(DSTBIN_HASH)),0,1)
    167      1.1  christos else
    168      1.1  christos BIN_ISDIFFERENT = 1
    169      1.1  christos endif
    170      1.1  christos 
    171      1.1  christos zstd : $(BUILD_DIR)/zstd
    172      1.1  christos 	if [ $(BIN_ISDIFFERENT) -eq 1 ]; then \
    173      1.1  christos 		cp -f $<$(EXT) $@$(EXT); \
    174      1.1  christos 		echo zstd build completed; \
    175      1.1  christos 	else \
    176      1.1  christos 		echo zstd already built; \
    177      1.1  christos 	fi
    178      1.1  christos 
    179      1.1  christos endif  # BUILD_DIR
    180      1.1  christos 
    181      1.1  christos 
    182      1.1  christos CLEAN += zstd
    183      1.1  christos .PHONY: zstd-release
    184      1.1  christos zstd-release: DEBUGFLAGS := -DBACKTRACE_ENABLE=0
    185      1.1  christos zstd-release: DEBUGFLAGS_LD :=
    186      1.1  christos zstd-release: zstd
    187      1.1  christos 
    188      1.1  christos CLEAN += zstd32
    189      1.1  christos zstd32 : CPPFLAGS += $(THREAD_CPP)
    190      1.1  christos zstd32 : LDFLAGS  += $(THREAD_LD)
    191      1.1  christos zstd32 : CPPFLAGS += -DZSTD_LEGACY_SUPPORT=$(ZSTD_LEGACY_SUPPORT)
    192      1.1  christos ifneq (,$(filter Windows%,$(OS)))
    193      1.1  christos zstd32 : $(RES32_FILE)
    194      1.1  christos endif
    195      1.1  christos zstd32 : $(ZSTDLIB_FULL_SRC) $(ZSTD_CLI_SRC)
    196      1.1  christos 	$(CC) -m32 $(FLAGS) $^ -o $@$(EXT)
    197      1.1  christos 
    198      1.1  christos ## zstd-nolegacy: same scope as zstd, with removed support of legacy formats
    199      1.1  christos CLEAN += zstd-nolegacy
    200      1.1  christos zstd-nolegacy : LDFLAGS += $(THREAD_LD) $(ZLIBLD) $(LZMALD) $(LZ4LD) $(DEBUGFLAGS_LD)
    201      1.1  christos zstd-nolegacy : CPPFLAGS += -UZSTD_LEGACY_SUPPORT -DZSTD_LEGACY_SUPPORT=0
    202      1.1  christos zstd-nolegacy : $(ZSTDLIB_CORE_SRC) $(ZDICT_SRC) $(ZSTD_CLI_OBJ)
    203      1.1  christos 	$(CC) $(FLAGS) $^ -o $@$(EXT) $(LDFLAGS)
    204      1.1  christos 
    205      1.1  christos .PHONY: zstd-nomt
    206      1.1  christos zstd-nomt : THREAD_CPP :=
    207      1.1  christos zstd-nomt : THREAD_LD  :=
    208      1.1  christos zstd-nomt : THREAD_MSG := - multi-threading disabled
    209      1.1  christos zstd-nomt : zstd
    210      1.1  christos 
    211      1.1  christos .PHONY: zstd-nogz
    212      1.1  christos zstd-nogz : ZLIBCPP :=
    213      1.1  christos zstd-nogz : ZLIBLD  :=
    214      1.1  christos zstd-nogz : ZLIB_MSG := - gzip support is disabled
    215      1.1  christos zstd-nogz : zstd
    216      1.1  christos 
    217      1.1  christos .PHONY: zstd-noxz
    218      1.1  christos zstd-noxz : LZMACPP :=
    219      1.1  christos zstd-noxz : LZMALD  :=
    220      1.1  christos zstd-noxz : LZMA_MSG := - xz/lzma support is disabled
    221      1.1  christos zstd-noxz : zstd
    222      1.1  christos 
    223      1.1  christos ## zstd-dll: zstd executable linked to dynamic library libzstd (must have same version)
    224      1.1  christos .PHONY: zstd-dll
    225      1.1  christos zstd-dll : LDFLAGS+= -L$(LIB_BINDIR)
    226      1.1  christos zstd-dll : LDLIBS += -lzstd
    227      1.1  christos zstd-dll : ZSTDLIB_LOCAL_SRC = xxhash.c pool.c threading.c
    228      1.1  christos zstd-dll : zstd
    229      1.1  christos 
    230      1.1  christos 
    231      1.1  christos ## zstd-pgo: zstd executable optimized with PGO.
    232      1.1  christos .PHONY: zstd-pgo
    233      1.1  christos zstd-pgo : LLVM_PROFDATA?=llvm-profdata
    234      1.1  christos zstd-pgo : PROF_GENERATE_FLAGS=-fprofile-generate $(if $(findstring gcc,$(CC)),-fprofile-dir=.)
    235  1.1.1.2  christos zstd-pgo : PROF_USE_FLAGS=-fprofile-use $(if $(findstring gcc,$(CC)),-fprofile-dir=. -Wno-error=missing-profile -Wno-error=coverage-mismatch)
    236      1.1  christos zstd-pgo :
    237      1.1  christos 	$(MAKE) clean HASH_DIR=$(HASH_DIR)
    238      1.1  christos 	$(MAKE) zstd HASH_DIR=$(HASH_DIR) MOREFLAGS="$(PROF_GENERATE_FLAGS)"
    239      1.1  christos 	./zstd -b19i1 $(PROFILE_WITH)
    240      1.1  christos 	./zstd -b16i1 $(PROFILE_WITH)
    241      1.1  christos 	./zstd -b9i2 $(PROFILE_WITH)
    242      1.1  christos 	./zstd -b $(PROFILE_WITH)
    243      1.1  christos 	./zstd -b7i2 $(PROFILE_WITH)
    244      1.1  christos 	./zstd -b5 $(PROFILE_WITH)
    245      1.1  christos ifndef BUILD_DIR
    246      1.1  christos 	$(RM) zstd obj/$(HASH_DIR)/zstd obj/$(HASH_DIR)/*.o
    247      1.1  christos else
    248      1.1  christos 	$(RM) zstd $(BUILD_DIR)/zstd $(BUILD_DIR)/*.o
    249      1.1  christos endif
    250      1.1  christos 	case $(CC) in *clang*) if ! [ -e default.profdata ]; then $(LLVM_PROFDATA) merge -output=default.profdata default*.profraw; fi ;; esac
    251      1.1  christos 	$(MAKE) zstd HASH_DIR=$(HASH_DIR) MOREFLAGS="$(PROF_USE_FLAGS)"
    252      1.1  christos 
    253      1.1  christos ## zstd-small: minimal target, supporting only zstd compression and decompression. no bench. no legacy. no other format.
    254      1.1  christos CLEAN += zstd-small zstd-frugal
    255      1.1  christos zstd-small: CFLAGS = -Os -Wl,-s
    256      1.1  christos zstd-frugal zstd-small: $(ZSTDLIB_CORE_SRC) zstdcli.c util.c timefn.c fileio.c fileio_asyncio.c
    257      1.1  christos 	$(CC) $(FLAGS) -DZSTD_NOBENCH -DZSTD_NODICT -DZSTD_NOTRACE -UZSTD_LEGACY_SUPPORT -DZSTD_LEGACY_SUPPORT=0 $^ -o $@$(EXT)
    258      1.1  christos 
    259      1.1  christos CLEAN += zstd-decompress
    260      1.1  christos zstd-decompress: $(ZSTDLIB_COMMON_SRC) $(ZSTDLIB_DECOMPRESS_SRC) zstdcli.c util.c timefn.c fileio.c fileio_asyncio.c
    261      1.1  christos 	$(CC) $(FLAGS) -DZSTD_NOBENCH -DZSTD_NODICT -DZSTD_NOCOMPRESS -DZSTD_NOTRACE -UZSTD_LEGACY_SUPPORT -DZSTD_LEGACY_SUPPORT=0 $^ -o $@$(EXT)
    262      1.1  christos 
    263      1.1  christos CLEAN += zstd-compress
    264      1.1  christos zstd-compress: $(ZSTDLIB_COMMON_SRC) $(ZSTDLIB_COMPRESS_SRC) zstdcli.c util.c timefn.c fileio.c fileio_asyncio.c
    265      1.1  christos 	$(CC) $(FLAGS) -DZSTD_NOBENCH -DZSTD_NODICT -DZSTD_NODECOMPRESS -DZSTD_NOTRACE -UZSTD_LEGACY_SUPPORT -DZSTD_LEGACY_SUPPORT=0 $^ -o $@$(EXT)
    266      1.1  christos 
    267      1.1  christos ## zstd-dictBuilder: executable supporting dictionary creation and compression (only)
    268      1.1  christos CLEAN += zstd-dictBuilder
    269      1.1  christos zstd-dictBuilder: $(ZSTDLIB_COMMON_SRC) $(ZSTDLIB_COMPRESS_SRC) $(ZDICT_SRC) zstdcli.c util.c timefn.c fileio.c fileio_asyncio.c dibio.c
    270      1.1  christos 	$(CC) $(FLAGS) -DZSTD_NOBENCH -DZSTD_NODECOMPRESS -DZSTD_NOTRACE $^ -o $@$(EXT)
    271      1.1  christos 
    272      1.1  christos CLEAN += zstdmt
    273      1.1  christos zstdmt: zstd
    274      1.1  christos 	ln -sf zstd zstdmt
    275      1.1  christos 
    276      1.1  christos .PHONY: generate_res
    277      1.1  christos generate_res: $(RES64_FILE) $(RES32_FILE)
    278      1.1  christos 
    279      1.1  christos ifneq (,$(filter Windows%,$(OS)))
    280      1.1  christos RC ?= windres
    281      1.1  christos # https://stackoverflow.com/questions/708238/how-do-i-add-an-icon-to-a-mingw-gcc-compiled-executable
    282      1.1  christos $(RES64_FILE): windres/zstd.rc
    283      1.1  christos 	$(RC) -o $@ -I ../lib -I windres -i $< -O coff -F pe-x86-64
    284      1.1  christos $(RES32_FILE): windres/zstd.rc
    285      1.1  christos 	$(RC) -o $@ -I ../lib -I windres -i $< -O coff -F pe-i386
    286      1.1  christos endif
    287      1.1  christos 
    288      1.1  christos .PHONY: clean
    289      1.1  christos clean:
    290      1.1  christos 	$(RM) $(CLEAN) core *.o tmp* result* dictionary *.zst \
    291      1.1  christos         *.gcda default*.profraw default.profdata have_zlib
    292      1.1  christos 	$(RM) -r obj/*
    293      1.1  christos 	@echo Cleaning completed
    294      1.1  christos 
    295      1.1  christos MD2ROFF = ronn
    296      1.1  christos MD2ROFF_FLAGS = --roff --warnings --manual="User Commands" --organization="zstd $(ZSTD_VERSION)"
    297      1.1  christos 
    298      1.1  christos zstd.1: zstd.1.md ../lib/zstd.h
    299      1.1  christos 	cat $< | $(MD2ROFF) $(MD2ROFF_FLAGS) | sed -n '/^\.\\\".*/!p' > $@
    300      1.1  christos 
    301      1.1  christos zstdgrep.1: zstdgrep.1.md ../lib/zstd.h
    302      1.1  christos 	cat $< | $(MD2ROFF) $(MD2ROFF_FLAGS) | sed -n '/^\.\\\".*/!p' > $@
    303      1.1  christos 
    304      1.1  christos zstdless.1: zstdless.1.md ../lib/zstd.h
    305      1.1  christos 	cat $< | $(MD2ROFF) $(MD2ROFF_FLAGS) | sed -n '/^\.\\\".*/!p' > $@
    306      1.1  christos 
    307      1.1  christos .PHONY: man
    308      1.1  christos man: zstd.1 zstdgrep.1 zstdless.1
    309      1.1  christos 
    310      1.1  christos .PHONY: clean-man
    311      1.1  christos clean-man:
    312      1.1  christos 	$(RM) zstd.1
    313      1.1  christos 	$(RM) zstdgrep.1
    314      1.1  christos 	$(RM) zstdless.1
    315      1.1  christos 
    316      1.1  christos .PHONY: preview-man
    317      1.1  christos preview-man: clean-man man
    318      1.1  christos 	man ./zstd.1
    319      1.1  christos 	man ./zstdgrep.1
    320      1.1  christos 	man ./zstdless.1
    321      1.1  christos 
    322      1.1  christos 
    323      1.1  christos # Generate .h dependencies automatically
    324      1.1  christos 
    325      1.1  christos DEPFLAGS = -MT $@ -MMD -MP -MF
    326      1.1  christos 
    327      1.1  christos $(BUILD_DIR)/%.o : %.c $(BUILD_DIR)/%.d | $(BUILD_DIR)
    328      1.1  christos 	@echo CC $@
    329      1.1  christos 	$(COMPILE.c) $(DEPFLAGS) $(BUILD_DIR)/$*.d $(OUTPUT_OPTION) $<
    330      1.1  christos 
    331      1.1  christos $(BUILD_DIR)/%.o : %.S | $(BUILD_DIR)
    332      1.1  christos 	@echo AS $@
    333      1.1  christos 	$(COMPILE.S) $(OUTPUT_OPTION) $<
    334      1.1  christos 
    335      1.1  christos MKDIR ?= mkdir
    336      1.1  christos $(BUILD_DIR): ; $(MKDIR) -p $@
    337      1.1  christos 
    338      1.1  christos DEPFILES := $(ZSTD_OBJ:.o=.d)
    339      1.1  christos $(DEPFILES):
    340      1.1  christos 
    341      1.1  christos include $(wildcard $(DEPFILES))
    342      1.1  christos 
    343      1.1  christos 
    344      1.1  christos 
    345      1.1  christos #-----------------------------------------------------------------------------
    346      1.1  christos # make install is validated only for Linux, macOS, BSD, Hurd and Solaris targets
    347      1.1  christos #-----------------------------------------------------------------------------
    348  1.1.1.2  christos ifneq (,$(filter Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD NetBSD DragonFly SunOS Haiku AIX MSYS_NT% CYGWIN_NT%,$(UNAME)))
    349      1.1  christos 
    350      1.1  christos HAVE_COLORNEVER = $(shell echo a | egrep --color=never a > /dev/null 2> /dev/null && echo 1 || echo 0)
    351      1.1  christos EGREP_OPTIONS ?=
    352      1.1  christos ifeq ($(HAVE_COLORNEVER), 1)
    353      1.1  christos   EGREP_OPTIONS += --color=never
    354      1.1  christos endif
    355      1.1  christos EGREP = egrep $(EGREP_OPTIONS)
    356      1.1  christos AWK = awk
    357      1.1  christos 
    358      1.1  christos # Print a two column output of targets and their description. To add a target description, put a
    359      1.1  christos # comment in the Makefile with the format "## <TARGET>: <DESCRIPTION>".  For example:
    360      1.1  christos #
    361      1.1  christos ## list: Print all targets and their descriptions (if provided)
    362      1.1  christos .PHONY: list
    363      1.1  christos list:
    364      1.1  christos 	TARGETS=$$($(MAKE) -pRrq -f $(lastword $(MAKEFILE_LIST)) : 2>/dev/null \
    365      1.1  christos 		| $(AWK) -v RS= -F: '/^# File/,/^# Finished Make data base/ {if ($$1 !~ "^[#.]") {print $$1}}' \
    366      1.1  christos 		| $(EGREP) -v  -e '^[^[:alnum:]]' | sort); \
    367      1.1  christos 	{ \
    368      1.1  christos 	    printf "Target Name\tDescription\n"; \
    369      1.1  christos 	    printf "%0.s-" {1..16}; printf "\t"; printf "%0.s-" {1..40}; printf "\n"; \
    370      1.1  christos 	    for target in $$TARGETS; do \
    371      1.1  christos 	        line=$$($(EGREP) "^##[[:space:]]+$$target:" $(lastword $(MAKEFILE_LIST))); \
    372      1.1  christos 	        description=$$(echo $$line | $(AWK) '{i=index($$0,":"); print substr($$0,i+1)}' | xargs); \
    373      1.1  christos 	        printf "$$target\t$$description\n"; \
    374      1.1  christos 	    done \
    375      1.1  christos 	} | column -t -s $$'\t'
    376      1.1  christos 
    377      1.1  christos 
    378      1.1  christos DESTDIR     ?=
    379      1.1  christos # directory variables : GNU conventions prefer lowercase
    380      1.1  christos # see https://www.gnu.org/prep/standards/html_node/Makefile-Conventions.html
    381      1.1  christos # support both lower and uppercase (BSD), use uppercase in script
    382      1.1  christos prefix      ?= /usr/local
    383      1.1  christos PREFIX      ?= $(prefix)
    384      1.1  christos exec_prefix ?= $(PREFIX)
    385      1.1  christos bindir      ?= $(exec_prefix)/bin
    386      1.1  christos BINDIR      ?= $(bindir)
    387      1.1  christos datarootdir ?= $(PREFIX)/share
    388      1.1  christos mandir      ?= $(datarootdir)/man
    389      1.1  christos man1dir     ?= $(mandir)/man1
    390      1.1  christos 
    391  1.1.1.2  christos ifneq (,$(filter OpenBSD NetBSD DragonFly SunOS,$(UNAME)))
    392      1.1  christos   MANDIR  ?= $(PREFIX)/man
    393      1.1  christos   MAN1DIR ?= $(MANDIR)/man1
    394      1.1  christos else
    395      1.1  christos   MAN1DIR ?= $(man1dir)
    396      1.1  christos endif
    397      1.1  christos 
    398  1.1.1.2  christos ifneq (,$(filter SunOS,$(UNAME)))
    399      1.1  christos   INSTALL ?= ginstall
    400      1.1  christos else
    401      1.1  christos   INSTALL ?= install
    402      1.1  christos endif
    403      1.1  christos 
    404      1.1  christos INSTALL_PROGRAM ?= $(INSTALL)
    405      1.1  christos INSTALL_SCRIPT  ?= $(INSTALL_PROGRAM)
    406      1.1  christos INSTALL_DATA    ?= $(INSTALL) -m 644
    407      1.1  christos INSTALL_MAN     ?= $(INSTALL_DATA)
    408      1.1  christos 
    409      1.1  christos .PHONY: install
    410      1.1  christos install:
    411      1.1  christos 	# generate zstd only if not already present
    412      1.1  christos 	[ -e zstd ] || $(MAKE) zstd-release
    413      1.1  christos 	[ -e $(DESTDIR)$(BINDIR) ] || $(INSTALL) -d -m 755 $(DESTDIR)$(BINDIR)/
    414      1.1  christos 	[ -e $(DESTDIR)$(MAN1DIR) ] || $(INSTALL) -d -m 755 $(DESTDIR)$(MAN1DIR)/
    415      1.1  christos 	@echo Installing binaries
    416      1.1  christos 	$(INSTALL_PROGRAM) zstd$(EXT) $(DESTDIR)$(BINDIR)/zstd$(EXT)
    417      1.1  christos 	ln -sf zstd$(EXT) $(DESTDIR)$(BINDIR)/zstdcat$(EXT)
    418      1.1  christos 	ln -sf zstd$(EXT) $(DESTDIR)$(BINDIR)/unzstd$(EXT)
    419      1.1  christos 	ln -sf zstd$(EXT) $(DESTDIR)$(BINDIR)/zstdmt$(EXT)
    420      1.1  christos 	$(INSTALL_SCRIPT) zstdless $(DESTDIR)$(BINDIR)/zstdless
    421      1.1  christos 	$(INSTALL_SCRIPT) zstdgrep $(DESTDIR)$(BINDIR)/zstdgrep
    422      1.1  christos 	@echo Installing man pages
    423      1.1  christos 	$(INSTALL_MAN) zstd.1 $(DESTDIR)$(MAN1DIR)/zstd.1
    424      1.1  christos 	ln -sf zstd.1 $(DESTDIR)$(MAN1DIR)/zstdcat.1
    425      1.1  christos 	ln -sf zstd.1 $(DESTDIR)$(MAN1DIR)/unzstd.1
    426      1.1  christos 	$(INSTALL_MAN) zstdgrep.1 $(DESTDIR)$(MAN1DIR)/zstdgrep.1
    427      1.1  christos 	$(INSTALL_MAN) zstdless.1 $(DESTDIR)$(MAN1DIR)/zstdless.1
    428      1.1  christos 	@echo zstd installation completed
    429      1.1  christos 
    430      1.1  christos .PHONY: uninstall
    431      1.1  christos uninstall:
    432      1.1  christos 	$(RM) $(DESTDIR)$(BINDIR)/zstdgrep
    433      1.1  christos 	$(RM) $(DESTDIR)$(BINDIR)/zstdless
    434      1.1  christos 	$(RM) $(DESTDIR)$(BINDIR)/zstdcat
    435      1.1  christos 	$(RM) $(DESTDIR)$(BINDIR)/unzstd
    436      1.1  christos 	$(RM) $(DESTDIR)$(BINDIR)/zstdmt
    437      1.1  christos 	$(RM) $(DESTDIR)$(BINDIR)/zstd
    438      1.1  christos 	$(RM) $(DESTDIR)$(MAN1DIR)/zstdless.1
    439      1.1  christos 	$(RM) $(DESTDIR)$(MAN1DIR)/zstdgrep.1
    440      1.1  christos 	$(RM) $(DESTDIR)$(MAN1DIR)/zstdcat.1
    441      1.1  christos 	$(RM) $(DESTDIR)$(MAN1DIR)/unzstd.1
    442      1.1  christos 	$(RM) $(DESTDIR)$(MAN1DIR)/zstd.1
    443      1.1  christos 	@echo zstd programs successfully uninstalled
    444      1.1  christos 
    445      1.1  christos endif
    446