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ddidderr bdd35c838d build(rust): add legacy feature scaffolding 
The legacy decoders (lib/legacy/zstd_v01.c .. zstd_v07.c) are next in
the Rust migration. Each of those files is a frozen snapshot of the
FSE/Huff0 entropy coders and frame logic of one historical release, so
their ports must not reuse the modern Rust entropy modules and must not
share code with each other: outputs and error codes have to stay
byte-identical to the frozen C forever. This commit installs the
build-system scaffolding so seven per-version ports can land
independently, each adding only its own module file plus a one-line
registration in rust/src/legacy/mod.rs.

Cargo grows features legacy-v01 .. legacy-v07. They are never default
features: the C build defaults differ per build system, so each build
system passes the list explicitly, derived from its own legacy
configuration:

- lib/Makefile and programs/Makefile map ZSTD_LEGACY_SUPPORT=N to the
  features for versions N..7 (0 disables legacy), mirroring the
  ZSTD_LEGACY_FILES selection in lib/libzstd.mk.
- tests/Makefile always enables all seven features because its
  ZSTDLEGACY_FILES wildcard compiles every lib/legacy/*.c regardless of
  the dispatch level.
- build/meson maps legacy_level exactly like the makefiles; build/cmake
  enables all seven whenever ZSTD_LEGACY_SUPPORT is ON because it
  always compiles all seven C files (ZSTD_LEGACY_LEVEL only selects the
  C dispatch).

Every build system also encodes the legacy selection in the Rust target
directory name (e.g. c1-d1-default-legacy5), for the same reason the
HUF mode is encoded there: a cached archive built for one configuration
must never be linked into a build expecting another. In tests/Makefile
the legacy level additionally flows into the existing HUF C-mode stamp,
so the flat C test objects (which bake -DZSTD_LEGACY_SUPPORT into the
dispatch) are rebuilt whenever the level changes. In programs/Makefile
the compress-only, decompress-only, and CLI archives keep
level-independent directories (RUST_HUF_MODE) because they are only
linked into ZSTD_LEGACY_SUPPORT=0 program variants and carry no legacy
features.

A feature whose version has not been ported yet gates nothing: the
module registration in rust/src/legacy/mod.rs is added by each port,
so enabling e.g. legacy-v05 today simply leaves that decoder in C.
This is what makes mixed C/Rust legacy levels link cleanly while the
seven ports land in any order.

Test plan:
- cd rust && cargo fmt --check && cargo clippy --all-targets
  -- -D warnings && cargo test --all-targets
- cargo clippy with --no-default-features --features
  decompression,legacy-v01 and with all seven legacy features
- make -C tests fuzzer && ./tests/fuzzer -i1 --no-big-tests
- make -C tests test-rust-lib-smoke; make -C tests test-legacy
- make -C lib libzstd.a with ZSTD_LEGACY_SUPPORT=0, 1 and default (5)
- cmake configure and meson setup (including -Dlegacy_level=1) emit the
  expected --features lists and legacy-suffixed target directories
2026-07-11 23:07:55 +02:00

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# ################################################################
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under both the BSD-style license (found in the
# LICENSE file in the root directory of this source tree) and the GPLv2 (found
# in the COPYING file in the root directory of this source tree).
# You may select, at your option, one of the above-listed licenses.
# ################################################################
# default target (when running `make` with no argument)
lib-release:
# Modules
ZSTD_LIB_COMPRESSION ?= 1
ZSTD_LIB_DECOMPRESSION ?= 1
ZSTD_LIB_DICTBUILDER ?= 1
ZSTD_LIB_DEPRECATED ?= 0
# Input variables for libzstd.mk
ifeq ($(ZSTD_LIB_COMPRESSION), 0)
ZSTD_LIB_DICTBUILDER = 0
ZSTD_LIB_DEPRECATED = 0
endif
ifeq ($(ZSTD_LIB_DECOMPRESSION), 0)
ZSTD_LEGACY_SUPPORT = 0
ZSTD_LIB_DEPRECATED = 0
endif
include libzstd.mk
ZSTD_FILES := $(ZSTD_COMMON_FILES) $(ZSTD_LEGACY_FILES)
ifneq ($(ZSTD_LIB_COMPRESSION), 0)
ZSTD_FILES += $(ZSTD_COMPRESS_FILES)
endif
ifneq ($(ZSTD_LIB_DECOMPRESSION), 0)
ZSTD_FILES += $(ZSTD_DECOMPRESS_FILES)
endif
ifneq ($(ZSTD_LIB_DEPRECATED), 0)
ZSTD_FILES += $(ZSTD_DEPRECATED_FILES)
endif
ifneq ($(ZSTD_LIB_DICTBUILDER), 0)
ZSTD_FILES += $(ZSTD_DICTBUILDER_FILES)
endif
# The migrated implementation is built as a Rust static archive. The archive
# is feature-specific so a build forced to use a particular HUF decoder never
# reuses the default decoder implementation. RUST_TARGET can be set for a
# cross build; -m32 selects the supported 32-bit Linux target automatically.
CARGO ?= cargo
RUST_DIR ?= ../rust
RUST_MANIFEST := $(RUST_DIR)/Cargo.toml
RUST_SOURCES := $(RUST_MANIFEST) $(RUST_DIR)/Cargo.lock \
$(shell find $(RUST_DIR)/src -type f -name '*.rs' -print)
RUST_HUF_FORCE_X1 := $(HUF_FORCE_DECOMPRESS_X1)
RUST_HUF_FORCE_X2 := $(HUF_FORCE_DECOMPRESS_X2)
ifneq ($(filter -DHUF_FORCE_DECOMPRESS_X1 -DHUF_FORCE_DECOMPRESS_X1=%,$(CPPFLAGS) $(CFLAGS) $(MOREFLAGS)),)
RUST_HUF_FORCE_X1 := 1
endif
ifneq ($(filter -DHUF_FORCE_DECOMPRESS_X2 -DHUF_FORCE_DECOMPRESS_X2=%,$(CPPFLAGS) $(CFLAGS) $(MOREFLAGS)),)
RUST_HUF_FORCE_X2 := 1
endif
ifneq ($(RUST_HUF_FORCE_X1),0)
ifneq ($(RUST_HUF_FORCE_X2),0)
$(error HUF_FORCE_DECOMPRESS_X1 and HUF_FORCE_DECOMPRESS_X2 are mutually exclusive)
endif
endif
empty :=
space := $(empty) $(empty)
comma := ,
RUST_CARGO_FEATURES :=
ifneq ($(ZSTD_LIB_COMPRESSION),0)
RUST_CARGO_FEATURES += compression
endif
ifneq ($(ZSTD_LIB_DECOMPRESSION),0)
RUST_CARGO_FEATURES += decompression
endif
ifneq ($(ZSTD_LIB_DICTBUILDER),0)
RUST_CARGO_FEATURES += dict-builder
endif
RUST_MODULE_CONFIG := c$(ZSTD_LIB_COMPRESSION)-d$(ZSTD_LIB_DECOMPRESSION)-b$(ZSTD_LIB_DICTBUILDER)
RUST_HUF_FEATURE :=
RUST_BUILD_CONFIG := $(RUST_MODULE_CONFIG)-default
ifneq ($(RUST_HUF_FORCE_X1),0)
RUST_HUF_FEATURE := huf-force-decompress-x1
RUST_BUILD_CONFIG := $(RUST_MODULE_CONFIG)-huf-force-decompress-x1
endif
ifneq ($(RUST_HUF_FORCE_X2),0)
RUST_HUF_FEATURE := huf-force-decompress-x2
RUST_BUILD_CONFIG := $(RUST_MODULE_CONFIG)-huf-force-decompress-x2
endif
ifneq ($(RUST_HUF_FEATURE),)
ifneq ($(ZSTD_LIB_DECOMPRESSION),0)
RUST_CARGO_FEATURES += $(RUST_HUF_FEATURE)
endif
endif
# Legacy decoders follow the ZSTD_LEGACY_FILES selection exactly: level N
# enables versions v0.N .. v0.7 (0 disables legacy). The build directory
# also encodes the level, so archives for different legacy levels never mix.
RUST_LEGACY_FEATURES :=
ifneq ($(ZSTD_LEGACY_SUPPORT), 0)
ifeq ($(shell test $(ZSTD_LEGACY_SUPPORT) -lt 8; echo $$?), 0)
RUST_LEGACY_FEATURES := $(addprefix legacy-v0,$(wordlist $(ZSTD_LEGACY_SUPPORT),7,1 2 3 4 5 6 7))
endif
endif
RUST_CARGO_FEATURES += $(RUST_LEGACY_FEATURES)
RUST_BUILD_CONFIG := $(RUST_BUILD_CONFIG)-legacy$(ZSTD_LEGACY_SUPPORT)
RUST_CARGO_FEATURES := $(subst $(space),$(comma),$(strip $(RUST_CARGO_FEATURES)))
RUST_TARGET ?=
ifeq ($(strip $(RUST_TARGET)),)
ifneq ($(filter -m32,$(CC) $(CPPFLAGS) $(CFLAGS) $(MOREFLAGS)),)
RUST_TARGET := i686-unknown-linux-gnu
endif
endif
RUST_TARGET_DIR := $(RUST_DIR)/target/$(RUST_BUILD_CONFIG)
RUST_CARGO_FLAGS := --manifest-path $(RUST_MANIFEST) --release \
--target-dir $(RUST_TARGET_DIR) --no-default-features
ifneq ($(RUST_CARGO_FEATURES),)
RUST_CARGO_FLAGS += --features $(RUST_CARGO_FEATURES)
endif
ifneq ($(strip $(RUST_TARGET)),)
RUST_CARGO_FLAGS += --target $(RUST_TARGET)
RUST_TARGET_COMPONENT := /$(RUST_TARGET)
endif
RUST_STATICLIB := $(RUST_TARGET_DIR)$(RUST_TARGET_COMPONENT)/release/libzstd_rs.a
$(RUST_STATICLIB): $(RUST_SOURCES)
$(CARGO) build $(RUST_CARGO_FLAGS)
ZSTD_LOCAL_SRC := $(notdir $(ZSTD_FILES))
ZSTD_LOCAL_OBJ0 := $(ZSTD_LOCAL_SRC:.c=.o)
ZSTD_LOCAL_OBJ := $(ZSTD_LOCAL_OBJ0:.S=.o)
VERSION := $(ZSTD_VERSION)
# Note: by default, the static library is built single-threaded and dynamic library is built
# multi-threaded. It is possible to force multi or single threaded builds by appending
# -mt or -nomt to the build target (like lib-mt for multi-threaded, lib-nomt for single-threaded).
CPPFLAGS_DYNLIB += -DZSTD_MULTITHREAD # dynamic library build defaults to multi-threaded
LDFLAGS_DYNLIB += -pthread
CPPFLAGS_STATICLIB += # static library build defaults to single-threaded
# pkg-config Libs.private points to LDFLAGS_DYNLIB
PCLIB := $(LDFLAGS_DYNLIB)
ifeq ($(findstring GCC,$(CCVER)),GCC)
decompress/zstd_decompress_block.o : CFLAGS+=-fno-tree-vectorize
endif
# macOS linker doesn't support -soname, and use different extension
# see : https://developer.apple.com/library/mac/documentation/DeveloperTools/Conceptual/DynamicLibraries/100-Articles/DynamicLibraryDesignGuidelines.html
UNAME_TARGET_SYSTEM ?= $(UNAME)
ifeq ($(UNAME_TARGET_SYSTEM), Darwin)
SHARED_EXT = dylib
SHARED_EXT_MAJOR = $(LIBVER_MAJOR).$(SHARED_EXT)
SHARED_EXT_VER = $(LIBVER).$(SHARED_EXT)
SONAME_FLAGS = -install_name $(LIBDIR)/libzstd.$(SHARED_EXT_MAJOR) -compatibility_version $(LIBVER_MAJOR) -current_version $(LIBVER)
else
ifeq ($(UNAME_TARGET_SYSTEM), AIX)
SONAME_FLAGS =
else
SONAME_FLAGS = -Wl,-soname=libzstd.$(SHARED_EXT).$(LIBVER_MAJOR)
endif
SHARED_EXT = so
SHARED_EXT_MAJOR = $(SHARED_EXT).$(LIBVER_MAJOR)
SHARED_EXT_VER = $(SHARED_EXT).$(LIBVER)
endif
# A dynamic library must retain every migrated public Rust export, including
# functions no C object calls directly. GNU-like linkers need an explicit
# whole-archive region for that; Darwin spells the same operation force_load.
ifeq ($(UNAME_TARGET_SYSTEM), Darwin)
RUST_DYNLIB_LINK = -Wl,-force_load,$(abspath $(RUST_STATICLIB))
else
RUST_DYNLIB_LINK = -Wl,--whole-archive $(RUST_STATICLIB) -Wl,--no-whole-archive
endif
.PHONY: all
all: lib
.PHONY: libzstd.a # must be run every time
libzstd.a: CPPFLAGS += $(CPPFLAGS_STATICLIB)
SET_CACHE_DIRECTORY = \
+$(MAKE) --no-print-directory $@ \
BUILD_DIR=obj/$(HASH_DIR) \
CPPFLAGS="$(CPPFLAGS)" \
CFLAGS="$(CFLAGS)" \
LDFLAGS="$(LDFLAGS)"
ifndef BUILD_DIR
# determine BUILD_DIR from compilation flags
libzstd.a:
$(SET_CACHE_DIRECTORY)
else
# BUILD_DIR is defined
ZSTD_STATICLIB_DIR := $(BUILD_DIR)/static
ZSTD_STATICLIB := $(ZSTD_STATICLIB_DIR)/libzstd.a
ZSTD_STATICLIB_OBJ := $(addprefix $(ZSTD_STATICLIB_DIR)/,$(ZSTD_LOCAL_OBJ))
ZSTD_STATICLIB_RUST_DIR := $(ZSTD_STATICLIB_DIR)/rust
$(ZSTD_STATICLIB): ARFLAGS = rcs
$(ZSTD_STATICLIB): | $(ZSTD_STATICLIB_DIR)
$(ZSTD_STATICLIB): $(ZSTD_STATICLIB_OBJ) $(RUST_STATICLIB)
# Check for multithread flag at target execution time
$(if $(filter -DZSTD_MULTITHREAD,$(CPPFLAGS)),\
@echo compiling multi-threaded static library $(LIBVER),\
@echo compiling single-threaded static library $(LIBVER))
$(RM) -rf $(ZSTD_STATICLIB_RUST_DIR)
$(MKDIR) $(ZSTD_STATICLIB_RUST_DIR)
(cd $(ZSTD_STATICLIB_RUST_DIR) && $(AR) x $(abspath $(RUST_STATICLIB)))
$(RM) -f $@
$(AR) $(ARFLAGS) $@ $(ZSTD_STATICLIB_OBJ) $(ZSTD_STATICLIB_RUST_DIR)/*.o
$(RM) -rf $(ZSTD_STATICLIB_RUST_DIR)
libzstd.a: $(ZSTD_STATICLIB)
cp -f $< $@
endif
ifneq (,$(filter Windows%,$(TARGET_SYSTEM)))
LIBZSTD = dll/libzstd.dll
$(LIBZSTD): $(ZSTD_FILES) $(RUST_STATICLIB)
@echo compiling dynamic library $(LIBVER)
$(CC) $(FLAGS) -DZSTD_DLL_EXPORT=1 -Wl,--out-implib,dll/libzstd.dll.a -shared $(ZSTD_FILES) $(RUST_DYNLIB_LINK) -o $@
else # not Windows
LIBZSTD = libzstd.$(SHARED_EXT_VER)
.PHONY: $(LIBZSTD) # must be run every time
$(LIBZSTD): CPPFLAGS += $(CPPFLAGS_DYNLIB)
$(LIBZSTD): CFLAGS += -fPIC -fvisibility=hidden
$(LIBZSTD): LDFLAGS += -shared $(LDFLAGS_DYNLIB)
ifndef BUILD_DIR
# determine BUILD_DIR from compilation flags
$(LIBZSTD):
$(SET_CACHE_DIRECTORY)
else
# BUILD_DIR is defined
ZSTD_DYNLIB_DIR := $(BUILD_DIR)/dynamic
ZSTD_DYNLIB := $(ZSTD_DYNLIB_DIR)/$(LIBZSTD)
ZSTD_DYNLIB_OBJ := $(addprefix $(ZSTD_DYNLIB_DIR)/,$(ZSTD_LOCAL_OBJ))
$(ZSTD_DYNLIB): | $(ZSTD_DYNLIB_DIR)
$(ZSTD_DYNLIB): $(ZSTD_DYNLIB_OBJ) $(RUST_STATICLIB)
# Check for multithread flag at target execution time
$(if $(filter -DZSTD_MULTITHREAD,$(CPPFLAGS)),\
@echo compiling multi-threaded dynamic library $(LIBVER),\
@echo compiling single-threaded dynamic library $(LIBVER))
$(CC) $(FLAGS) $(ZSTD_DYNLIB_OBJ) $(RUST_DYNLIB_LINK) $(LDFLAGS) $(SONAME_FLAGS) -o $@
@echo creating versioned links
ln -sf $@ libzstd.$(SHARED_EXT_MAJOR)
ln -sf $@ libzstd.$(SHARED_EXT)
$(LIBZSTD): $(ZSTD_DYNLIB)
cp -f $< $@
endif # ifndef BUILD_DIR
endif # if windows
.PHONY: libzstd
libzstd : $(LIBZSTD)
.PHONY: lib
lib : libzstd.a libzstd
# note : do not define lib-mt or lib-release as .PHONY
# make does not consider implicit pattern rule for .PHONY target
%-mt : CPPFLAGS_DYNLIB := -DZSTD_MULTITHREAD
%-mt : CPPFLAGS_STATICLIB := -DZSTD_MULTITHREAD
%-mt : LDFLAGS_DYNLIB := -pthread
%-mt : PCLIB :=
%-mt : PCMTLIB := $(LDFLAGS_DYNLIB)
%-mt : %
@echo multi-threaded build completed
%-nomt : CPPFLAGS_DYNLIB :=
%-nomt : LDFLAGS_DYNLIB :=
%-nomt : CPPFLAGS_STATICLIB :=
%-nomt : PCLIB :=
%-nomt : %
@echo single-threaded build completed
%-release : DEBUGFLAGS :=
%-release : %
@echo release build completed
# Generate .h dependencies automatically
# -MMD: compiler generates dependency information as a side-effect of compilation, without system headers
# -MP: adds phony target for each dependency other than main file.
DEPFLAGS = -MMD -MP
# ensure that ZSTD_DYNLIB_DIR exists prior to generating %.o
$(ZSTD_DYNLIB_DIR)/%.o : %.c | $(ZSTD_DYNLIB_DIR)
@echo CC $@
$(COMPILE.c) $(DEPFLAGS) $(OUTPUT_OPTION) $<
$(ZSTD_STATICLIB_DIR)/%.o : %.c | $(ZSTD_STATICLIB_DIR)
@echo CC $@
$(COMPILE.c) $(DEPFLAGS) $(OUTPUT_OPTION) $<
$(ZSTD_DYNLIB_DIR)/%.o : %.S | $(ZSTD_DYNLIB_DIR)
@echo AS $@
$(COMPILE.S) $(OUTPUT_OPTION) $<
$(ZSTD_STATICLIB_DIR)/%.o : %.S | $(ZSTD_STATICLIB_DIR)
@echo AS $@
$(COMPILE.S) $(OUTPUT_OPTION) $<
MKDIR ?= mkdir -p
$(BUILD_DIR) $(ZSTD_DYNLIB_DIR) $(ZSTD_STATICLIB_DIR):
$(MKDIR) $@
DEPFILES := $(ZSTD_DYNLIB_OBJ:.o=.d) $(ZSTD_STATICLIB_OBJ:.o=.d)
$(DEPFILES):
# The leading '-' means: do not fail is include fails (ex: directory does not exist yet)
-include $(wildcard $(DEPFILES))
# Special case : build library in single-thread mode _and_ without zstdmt_compress.c
# Note : we still need threading.c and pool.c for the dictionary builder,
# but they will correctly behave single-threaded.
ZSTDMT_FILES = zstdmt_compress.c
ZSTD_NOMT_FILES = $(filter-out $(ZSTDMT_FILES),$(notdir $(ZSTD_FILES)))
libzstd-nomt: CFLAGS += -fPIC -fvisibility=hidden
libzstd-nomt: LDFLAGS += -shared
libzstd-nomt: $(ZSTD_NOMT_FILES) $(RUST_STATICLIB)
@echo compiling single-thread dynamic library $(LIBVER)
@echo files : $(ZSTD_NOMT_FILES)
@if echo "$(ZSTD_NOMT_FILES)" | tr ' ' '\n' | $(GREP) -q zstdmt; then \
echo "Error: Found zstdmt in list."; \
exit 1; \
fi
$(CC) $(FLAGS) $(ZSTD_NOMT_FILES) $(RUST_DYNLIB_LINK) $(LDFLAGS) $(SONAME_FLAGS) -o $@
.PHONY: clean
clean:
$(RM) -r *.dSYM # macOS-specific
$(RM) core *.o *.a *.gcda *.$(SHARED_EXT) *.$(SHARED_EXT).* libzstd.pc
$(RM) dll/libzstd.dll dll/libzstd.lib libzstd-nomt*
$(RM) -r obj/*
@echo Cleaning library completed
#-----------------------------------------------------------------------------
# make install is validated only for below listed environments
#-----------------------------------------------------------------------------
ifneq (,$(filter Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD NetBSD DragonFly SunOS Haiku AIX MSYS_NT% CYGWIN_NT%,$(UNAME)))
lib: libzstd.pc
HAS_EXPLICIT_EXEC_PREFIX := $(if $(or $(EXEC_PREFIX),$(exec_prefix)),1,)
DESTDIR ?=
# directory variables : GNU conventions prefer lowercase
# see https://www.gnu.org/prep/standards/html_node/Makefile-Conventions.html
# support both lower and uppercase (BSD), use uppercase in script
prefix ?= /usr/local
PREFIX ?= $(prefix)
exec_prefix ?= $(PREFIX)
EXEC_PREFIX ?= $(exec_prefix)
libdir ?= $(EXEC_PREFIX)/lib
LIBDIR ?= $(libdir)
includedir ?= $(PREFIX)/include
INCLUDEDIR ?= $(includedir)
PCINCDIR := $(patsubst $(PREFIX)%,%,$(INCLUDEDIR))
PCLIBDIR := $(patsubst $(EXEC_PREFIX)%,%,$(LIBDIR))
# If we successfully stripped off a prefix, we'll add a reference to the
# relevant pc variable.
PCINCPREFIX := $(if $(findstring $(INCLUDEDIR),$(PCINCDIR)),,$${prefix})
PCLIBPREFIX := $(if $(findstring $(LIBDIR),$(PCLIBDIR)),,$${exec_prefix})
# If no explicit EXEC_PREFIX was set by the caller, write it out as a reference
# to PREFIX, rather than as a resolved value.
PCEXEC_PREFIX := $(if $(HAS_EXPLICIT_EXEC_PREFIX),$(EXEC_PREFIX),$${prefix})
ifneq ($(MT),)
PCLIB :=
PCMTLIB := $(LDFLAGS_DYNLIB)
else
PCLIB := $(LDFLAGS_DYNLIB)
endif
ifneq (,$(filter FreeBSD NetBSD DragonFly,$(UNAME)))
PKGCONFIGDIR ?= $(PREFIX)/libdata/pkgconfig
else
PKGCONFIGDIR ?= $(LIBDIR)/pkgconfig
endif
ifneq (,$(filter SunOS,$(UNAME)))
INSTALL ?= ginstall
else
INSTALL ?= install
endif
INSTALL_PROGRAM ?= $(INSTALL)
INSTALL_DATA ?= $(INSTALL) -m 644
# pkg-config library define.
# For static single-threaded library declare -pthread in Libs.private
# For static multi-threaded library declare -pthread in Libs and Cflags
.PHONY: libzstd.pc
libzstd.pc: libzstd.pc.in
@echo creating pkgconfig
@sed \
-e 's|@PREFIX@|$(PREFIX)|' \
-e 's|@EXEC_PREFIX@|$(PCEXEC_PREFIX)|' \
-e 's|@INCLUDEDIR@|$(PCINCPREFIX)$(PCINCDIR)|' \
-e 's|@LIBDIR@|$(PCLIBPREFIX)$(PCLIBDIR)|' \
-e 's|@VERSION@|$(VERSION)|' \
-e 's|@LIBS_MT@|$(PCMTLIB)|' \
-e 's|@LIBS_PRIVATE@|$(PCLIB)|' \
$< >$@
.PHONY: install
install: install-pc install-static install-shared install-includes
@echo zstd static and shared library installed
.PHONY: install-pc
install-pc: libzstd.pc
[ -e $(DESTDIR)$(PKGCONFIGDIR) ] || $(INSTALL) -d -m 755 $(DESTDIR)$(PKGCONFIGDIR)/
$(INSTALL_DATA) libzstd.pc $(DESTDIR)$(PKGCONFIGDIR)/
.PHONY: install-static
install-static:
# only generate libzstd.a if it's not already present
[ -e libzstd.a ] || $(MAKE) libzstd.a-release
[ -e $(DESTDIR)$(LIBDIR) ] || $(INSTALL) -d -m 755 $(DESTDIR)$(LIBDIR)/
@echo Installing static library
$(INSTALL_DATA) libzstd.a $(DESTDIR)$(LIBDIR)
.PHONY: install-shared
install-shared:
# only generate libzstd.so if it's not already present
[ -e $(LIBZSTD) ] || $(MAKE) libzstd-release
[ -e $(DESTDIR)$(LIBDIR) ] || $(INSTALL) -d -m 755 $(DESTDIR)$(LIBDIR)/
@echo Installing shared library
$(INSTALL_PROGRAM) $(LIBZSTD) $(DESTDIR)$(LIBDIR)
ln -sf $(LIBZSTD) $(DESTDIR)$(LIBDIR)/libzstd.$(SHARED_EXT_MAJOR)
ln -sf $(LIBZSTD) $(DESTDIR)$(LIBDIR)/libzstd.$(SHARED_EXT)
.PHONY: install-includes
install-includes:
[ -e $(DESTDIR)$(INCLUDEDIR) ] || $(INSTALL) -d -m 755 $(DESTDIR)$(INCLUDEDIR)/
@echo Installing includes
$(INSTALL_DATA) zstd.h $(DESTDIR)$(INCLUDEDIR)
$(INSTALL_DATA) zstd_errors.h $(DESTDIR)$(INCLUDEDIR)
$(INSTALL_DATA) zdict.h $(DESTDIR)$(INCLUDEDIR)
.PHONY: uninstall
uninstall:
$(RM) $(DESTDIR)$(LIBDIR)/libzstd.a
$(RM) $(DESTDIR)$(LIBDIR)/libzstd.$(SHARED_EXT)
$(RM) $(DESTDIR)$(LIBDIR)/libzstd.$(SHARED_EXT_MAJOR)
$(RM) $(DESTDIR)$(LIBDIR)/$(LIBZSTD)
$(RM) $(DESTDIR)$(PKGCONFIGDIR)/libzstd.pc
$(RM) $(DESTDIR)$(INCLUDEDIR)/zstd.h
$(RM) $(DESTDIR)$(INCLUDEDIR)/zstd_errors.h
$(RM) $(DESTDIR)$(INCLUDEDIR)/zdict.h
@echo zstd libraries successfully uninstalled
endif
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