# ##########################################################################
# LZ4 programs - Makefile
# Copyright (C) Yann Collet 2011-2016
#
# GPL v2 License
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# You can contact the author at :
#  - LZ4 homepage : http://www.lz4.org
#  - LZ4 source repository : https://github.com/Cyan4973/lz4
# ##########################################################################
# lz4 : Command Line Utility, supporting gzip-like arguments
# lz4c  : CLU, supporting also legacy lz4demo arguments
# lz4c32: Same as lz4c, but forced to compile in 32-bits mode
# ##########################################################################

# Version numbers
LIBVER_SRC := ../lib/lz4.h
LIBVER_MAJOR_SCRIPT:="/define LZ4_VERSION_MAJOR/s/.*[[:blank:]]\([0-9][0-9]*\).*/\1/p"
LIBVER_MINOR_SCRIPT:="/define LZ4_VERSION_MINOR/s/.*[[:blank:]]\([0-9][0-9]*\).*/\1/p"
LIBVER_PATCH_SCRIPT:="/define LZ4_VERSION_RELEASE/s/.*[[:blank:]]\([0-9][0-9]*\).*/\1/p"
LIBVER_MAJOR := $(shell sed -n $(LIBVER_MAJOR_SCRIPT) $(LIBVER_SRC))
LIBVER_MINOR := $(shell sed -n $(LIBVER_MINOR_SCRIPT) $(LIBVER_SRC))
LIBVER_PATCH := $(shell sed -n $(LIBVER_PATCH_SCRIPT) $(LIBVER_SRC))
LIBVER  := $(LIBVER_MAJOR).$(LIBVER_MINOR).$(LIBVER_PATCH)

LZ4DIR  := ../lib

SRCFILES := $(wildcard $(LZ4DIR)/*.c) $(wildcard *.c)
OBJFILES := $(patsubst %.c,%.o,$(SRCFILES))

CPPFLAGS+= -I$(LZ4DIR) -DXXH_NAMESPACE=LZ4_
CFLAGS  ?= -O3
DEBUGFLAGS:=-g -Wall -Wextra -Wundef -Wcast-qual -Wcast-align -Wshadow \
           -Wswitch-enum -Wdeclaration-after-statement -Wstrict-prototypes \
           -Wpointer-arith -Wstrict-aliasing=1
CFLAGS  += $(MOREFLAGS)
FLAGS    = $(CFLAGS) $(CPPFLAGS) $(LDFLAGS)

LZ4_VERSION=$(LIBVER)
MD2ROFF  =ronn
MD2ROFF_FLAGS  = --roff --warnings --manual="User Commands" --organization="lz4 $(LZ4_VERSION)"

RM = rm -f

# Define *.exe as extension for Windows systems
ifneq (,$(filter Windows%,$(OS)))
VOID := nul
EXT  :=.exe
else
VOID := /dev/null
EXT  :=
endif



default: lz4-release

all: lz4$(EXT) lz4c$(EXT)

all32: CFLAGS+=-m32
all32: all

lz4$(EXT): CFLAGS += $(DEBUGFLAGS)
lz4$(EXT): $(OBJFILES)
	$(CC) $(FLAGS) $^ -o $@

lz4-release: DEBUGFLAGS=
lz4-release: lz4$(EXT)

lz4c$(EXT)  : CFLAGS += $(DEBUGFLAGS)
lz4c$(EXT)  : $(SRCFILES)
	$(CC) $(FLAGS) -DENABLE_LZ4C_LEGACY_OPTIONS $^ -o $@

lz4c32: CFLAGS += -m32 $(DEBUGFLAGS)
lz4c32: $(SRCFILES)
	$(CC) $(FLAGS) $^ -o $@$(EXT)

clean:
	@$(MAKE) -C $(LZ4DIR) $@ > $(VOID)
	@-$(RM) core *.o *.test tmp* \
           lz4$(EXT) lz4c$(EXT) lz4c32$(EXT) unlz4$(EXT) lz4cat$(EXT)
	@echo Cleaning completed


lz4.1: lz4.1.md
	cat $^ | $(MD2ROFF) $(MD2ROFF_FLAGS) | sed -n '/^\.\\\".*/!p' > $@

man: lz4.1

clean-man:
	$(RM) lz4.1

preview-man: clean-man man
	man ./lz4.1


#-----------------------------------------------------------------------------
# make install is validated only for Linux, OSX, BSD, Hurd and Solaris targets
#-----------------------------------------------------------------------------
ifneq (,$(filter Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD NetBSD DragonFly SunOS windows% MINGW%,$(shell uname)))

unlz4$(EXT): lz4$(EXT)
ifneq (,$(filter Windows%,$(OS)))
	cp -pu lz4$(EXT) unlz4$(EXT)
else ifneq (,$(filter MINGW%,$(shell uname)))
	cp -pu lz4$(EXT) unlz4$(EXT)
else
	ln -s lz4 unlz4
endif

lz4cat$(EXT): lz4$(EXT)
ifneq (,$(filter Windows%,$(OS)))
	cp -pu lz4$(EXT) lz4cat$(EXT)
else ifneq (,$(filter MINGW%,$(shell uname)))
	cp -pu lz4$(EXT) lz4cat$(EXT)
else
	ln -s lz4 lz4cat
endif


ifneq (,$(filter SunOS windows%,$(shell uname)))
INSTALL ?= ginstall
else
INSTALL ?= install
endif

PREFIX  ?= /usr/local
DESTDIR ?=
BINDIR  ?= $(PREFIX)/bin

ifneq (,$(filter $(shell uname),OpenBSD FreeBSD NetBSD DragonFly SunOS))
MANDIR  ?= $(PREFIX)/man/man1
else
MANDIR  ?= $(PREFIX)/share/man/man1
endif

INSTALL_PROGRAM ?= $(INSTALL) -m 755
INSTALL_SCRIPT  ?= $(INSTALL) -m 755
INSTALL_MAN     ?= $(INSTALL) -m 644


install: lz4$(EXT) lz4c$(EXT)
	@echo Installing binaries
ifneq (,$(filter Windows%,$(OS)))
	@$(INSTALL) -d -m 755 $(subst /,\,$(DESTDIR)$(BINDIR)) $(subst /,\,$(DESTDIR)$(PREFIX)/share) $(subst /,\,$(DESTDIR)$(PREFIX)/share/man) $(subst /,\,$(DESTDIR)$(MANDIR))
else
	@$(INSTALL) -d -m 755 $(DESTDIR)$(BINDIR)/ $(DESTDIR)$(MANDIR)/
endif
	@$(INSTALL_PROGRAM) lz4$(EXT) $(DESTDIR)$(BINDIR)/lz4$(EXT)
ifeq (,$(filter Windows%,$(OS)))
	@ln -sf lz4 $(DESTDIR)$(BINDIR)/lz4cat
	@ln -sf lz4 $(DESTDIR)$(BINDIR)/unlz4
endif
	@$(INSTALL_PROGRAM) lz4c$(EXT) $(DESTDIR)$(BINDIR)/lz4c$(EXT)
	@echo Installing man pages
	@$(INSTALL_MAN) -m 644 lz4.1 $(DESTDIR)$(MANDIR)/lz4.1
ifneq (,$(filter Windows%,$(OS)))
	@cp -p lz4.1 $(DESTDIR)$(MANDIR)/lz4c.1
	@cp -p lz4.1 $(DESTDIR)$(MANDIR)/lz4cat.1
	@cp -p lz4.1 $(DESTDIR)$(MANDIR)/unlz4.1
else
	@ln -sf lz4.1 $(DESTDIR)$(MANDIR)/lz4c.1
	@ln -sf lz4.1 $(DESTDIR)$(MANDIR)/lz4cat.1
	@ln -sf lz4.1 $(DESTDIR)$(MANDIR)/unlz4.1
endif
	@echo lz4 installation completed

uninstall:
	@$(RM) $(DESTDIR)$(BINDIR)/lz4cat$(EXT)
	@$(RM) $(DESTDIR)$(BINDIR)/unlz4$(EXT)
	@$(RM) $(DESTDIR)$(BINDIR)/lz4$(EXT)
	@$(RM) $(DESTDIR)$(BINDIR)/lz4c$(EXT)
	@$(RM) $(DESTDIR)$(MANDIR)/lz4.1
	@$(RM) $(DESTDIR)$(MANDIR)/lz4c.1
	@$(RM) $(DESTDIR)$(MANDIR)/lz4cat.1
	@$(RM) $(DESTDIR)$(MANDIR)/unlz4.1
	@echo lz4 programs successfully uninstalled

endif
