# Base Makefile providing various standard targets
# Part of mklove suite but may be used independently.

MKL_RED?=	\033[031m
MKL_GREEN?=	\033[032m
MKL_YELLOW?=	\033[033m
MKL_BLUE?=	\033[034m
MKL_CLR_RESET?=	\033[0m

DEPS=		$(OBJS:%.o=%.d)

# TOPDIR is "TOPDIR/mklove/../" i.e., TOPDIR.
# We do it with two dir calls instead of /.. to support mklove being symlinked.
MKLOVE_DIR := $(dir $(lastword $(MAKEFILE_LIST)))
TOPDIR = $(MKLOVE_DIR:mklove/=.)


# Convert LIBNAME ("libxyz") to "xyz"
LIBNAME0=$(LIBNAME:lib%=%)

# Silence lousy default ARFLAGS (rv)
ARFLAGS=

ifndef MKL_MAKEFILE_CONFIG
-include $(TOPDIR)/Makefile.config
endif

# Use C compiler as default linker.
# C++ libraries will need to override this with CXX after
# including Makefile.base
CC_LD?=$(CC)

_UNAME_S := $(shell uname -s)
ifeq ($(_UNAME_S),Darwin)
	LIBFILENAME=$(LIBNAME).$(LIBVER)$(SOLIB_EXT)
	LIBFILENAMELINK=$(LIBNAME)$(SOLIB_EXT)
	LIBFILENAMEDBG=$(LIBNAME)-dbg.$(LIBVER)$(SOLIB_EXT)
	LDD_PRINT="otool -L"
else
	LIBFILENAME=$(LIBNAME)$(SOLIB_EXT).$(LIBVER)
	LIBFILENAMELINK=$(LIBNAME)$(SOLIB_EXT)
	LIBFILENAMEDBG=$(LIBNAME)-dbg$(SOLIB_EXT).$(LIBVER)
	LDD_PRINT="ldd"
endif

# DESTDIR must be an absolute path
ifneq ($(DESTDIR),)
DESTDIR:=$(abspath $(DESTDIR))
endif

INSTALL?=		install
INSTALL_PROGRAM?=	$(INSTALL)
INSTALL_DATA?=		$(INSTALL) -m 644

prefix?=	/usr/local
exec_prefix?=	$(prefix)
bindir?=	$(exec_prefix)/bin
sbindir?=	$(exec_prefix)/sbin
libexecdir?=	$(exec_prefix)/libexec/  # append PKGNAME on install
datarootdir?=	$(prefix)/share
datadir?=	$(datarootdir)		 # append PKGNAME on install
sysconfdir?=	$(prefix)/etc
sharedstatedir?=$(prefix)/com
localestatedir?=$(prefix)/var
runstatedir?=	$(localestatedir)/run
includedir?=	$(prefix)/include
docdir?=	$(datarootdir)/doc/$(PKGNAME)
infodir?=	$(datarootdir)/info
libdir?=	$(prefix)/lib
localedir?=	$(datarootdir)/locale
pkgconfigdir?=	$(libdir)/pkgconfig
mandir?=	$(datarootdir)/man
man1dir?=	$(mandir)/man1
man2dir?=	$(mandir)/man2
man3dir?=	$(mandir)/man3
man4dir?=	$(mandir)/man4
man5dir?=	$(mandir)/man5
man6dir?=	$(mandir)/man6
man7dir?=	$(mandir)/man7
man8dir?=	$(mandir)/man8

# An application Makefile should set DISABLE_LDS=y prior to
# including Makefile.base if it does not wish to have a linker-script.
ifeq ($(WITH_LDS)-$(DISABLE_LDS),y-)
# linker-script file
LIBNAME_LDS?=$(LIBNAME).lds
endif

# Checks that mklove is set up and ready for building
mklove-check:
	@if [ ! -f "$(TOPDIR)/Makefile.config" ]; then \
		printf "$(MKL_RED)$(TOPDIR)/Makefile.config missing: please run ./configure$(MKL_CLR_RESET)\n" ; \
		exit 1 ; \
	fi

%.o: %.c
	$(CC) -MD -MP $(CPPFLAGS) $(CFLAGS) -c $< -o $@

%.o: %.cpp
	$(CXX) -MD -MP $(CPPFLAGS) $(CXXFLAGS) -c $< -o $@


lib: $(LIBFILENAME) $(LIBNAME).a $(LIBNAME)-static.a $(LIBFILENAMELINK) lib-gen-pkg-config

# Linker-script (if WITH_LDS=y): overridable by application Makefile
$(LIBNAME_LDS):

$(LIBFILENAME): $(OBJS) $(LIBNAME_LDS)
	@printf "$(MKL_YELLOW)Creating shared library $@$(MKL_CLR_RESET)\n"
	$(CC_LD) $(LDFLAGS) $(LIB_LDFLAGS) $(OBJS) -o $@ $(LIBS)
	cp $@ $(LIBFILENAMEDBG)
ifeq ($(WITH_STRIP),y)
	$(STRIP) -S $@
endif

$(LIBNAME).a:	$(OBJS)
	@printf "$(MKL_YELLOW)Creating static library $@$(MKL_CLR_RESET)\n"
	$(AR) rcs$(ARFLAGS) $@ $(OBJS)
	cp $@ $(LIBNAME)-dbg.a
ifeq ($(WITH_STRIP),y)
	$(STRIP) -S $@
	$(RANLIB) $@
endif

ifeq ($(MKL_NO_SELFCONTAINED_STATIC_LIB),y)
_STATIC_FILENAME=$(LIBNAME).a
$(LIBNAME)-static.a:

else # MKL_NO_SELFCONTAINED_STATIC_LIB

ifneq ($(MKL_STATIC_LIBS),)
_STATIC_FILENAME=$(LIBNAME)-static.a
$(LIBNAME)-static.a: $(LIBNAME).a
	@printf "$(MKL_YELLOW)Creating self-contained static library $@$(MKL_CLR_RESET)\n"
ifeq ($(HAS_LIBTOOL_STATIC),y)
	$(LIBTOOL) -static -o $@ - $(LIBNAME).a $(MKL_STATIC_LIBS)
else ifeq ($(HAS_GNU_AR),y)
	(_tmp=$$(mktemp arstaticXXXXXX) ; \
	echo "CREATE $@" > $$_tmp ; \
	for _f in $(LIBNAME).a $(MKL_STATIC_LIBS) ; do \
		echo "ADDLIB $$_f" >> $$_tmp ; \
	done ; \
	echo "SAVE" >> $$_tmp ; \
	echo "END" >> $$_tmp ; \
	cat $$_tmp ; \
	ar -M < $$_tmp || exit 1 ; \
	rm $$_tmp)
else
	for _f in $(LIBNAME).a $(MKL_STATIC_LIBS) ; do \
		ar -r $@ $$_f ; \
	done
endif
	cp $@ $(LIBNAME)-static-dbg.a
# The self-contained static library is always stripped, regardless
# of --enable-strip, since otherwise it would become too big.
	$(STRIP) -S $@
	$(RANLIB) $@

ifneq ($(MKL_DYNAMIC_LIBS),)
	@printf "$(MKL_RED)WARNING:$(MKL_YELLOW) $@: The following libraries were not available as static libraries and need to be linked dynamically: $(MKL_DYNAMIC_LIBS)$(MKL_CLR_RESET)\n"
endif # MKL_DYNAMIC_LIBS

else # MKL_STATIC_LIBS is empty
_STATIC_FILENAME=$(LIBNAME).a
$(LIBNAME)-static.a: $(LIBNAME).a
	@printf "$(MKL_RED)WARNING:$(MKL_YELLOW) $@: No static libraries available/enabled for inclusion in self-contained static library $@: this library will be identical to $(LIBNAME).a$(MKL_CLR_RESET)\n"
ifneq ($(MKL_DYNAMIC_LIBS),)
	@printf "$(MKL_RED)WARNING:$(MKL_YELLOW) $@: The following libraries were not available as static libraries and need to be linked dynamically: $(MKL_DYNAMIC_LIBS)$(MKL_CLR_RESET)\n"
	cp $(LIBNAME).a $@
	cp $(LIBNAME)-dbg.a $(LIBNAME)-static-dbg.a
	cp $@ $(LIBNAME)-static-dbg.a
endif # MKL_DYNAMIC_LIBS
endif # MKL_STATIC_LIBS

endif # MKL_NO_SELFCONTAINED_STATIC_LIB

$(LIBFILENAMELINK): $(LIBFILENAME)
	@printf "$(MKL_YELLOW)Creating $@ symlink$(MKL_CLR_RESET)\n"
	rm -f "$@" && ln -s "$^" "$@"


# pkg-config .pc file definition
ifeq ($(GEN_PKG_CONFIG),y)
define _PKG_CONFIG_DEF
prefix=$(prefix)
libdir=$(libdir)
includedir=$(includedir)

Name: $(LIBNAME)
Description: $(MKL_APP_DESC_ONELINE)
Version: $(MKL_APP_VERSION)
Requires.private: $(MKL_PKGCONFIG_REQUIRES_PRIVATE)
Cflags: -I$${includedir}
Libs: -L$${libdir} -l$(LIBNAME0)
Libs.private: $(MKL_PKGCONFIG_LIBS_PRIVATE)
endef

export _PKG_CONFIG_DEF

define _PKG_CONFIG_STATIC_DEF
prefix=$(prefix)
libdir=$(libdir)
includedir=$(includedir)

Name: $(LIBNAME)-static
Description: $(MKL_APP_DESC_ONELINE) (static)
Version: $(MKL_APP_VERSION)
Requires: $(MKL_PKGCONFIG_REQUIRES:rdkafka=rdkafka-static)
Cflags: -I$${includedir}
Libs: -L$${libdir} $${pc_sysrootdir}$${libdir}/$(_STATIC_FILENAME) $(MKL_PKGCONFIG_LIBS_PRIVATE)
endef

export _PKG_CONFIG_STATIC_DEF

$(LIBNAME0).pc: $(TOPDIR)/Makefile.config
	@printf "$(MKL_YELLOW)Generating pkg-config file $@$(MKL_CLR_RESET)\n"
	@echo "$$_PKG_CONFIG_DEF" > $@

$(LIBNAME0)-static.pc: $(TOPDIR)/Makefile.config $(LIBNAME)-static.a
	@printf "$(MKL_YELLOW)Generating pkg-config file $@$(MKL_CLR_RESET)\n"
	@echo "$$_PKG_CONFIG_STATIC_DEF" > $@

lib-gen-pkg-config: $(LIBNAME0).pc $(LIBNAME0)-static.pc

lib-clean-pkg-config:
	rm -f $(LIBNAME0).pc $(LIBNAME0)-static.pc
else
lib-gen-pkg-config:
lib-clean-pkg-config:
endif


$(BIN): $(OBJS)
	@printf "$(MKL_YELLOW)Creating program $@$(MKL_CLR_RESET)\n"
	$(CC_LD) $(CPPFLAGS) $(LDFLAGS) $(OBJS) -o $@ $(LIBS)


file-check:
	@printf "$(MKL_YELLOW)Checking $(LIBNAME) integrity$(MKL_CLR_RESET)\n"
	@RET=true ; \
	for f in $(CHECK_FILES) ; do \
		printf "%-30s " $$f ; \
		if [ -f "$$f" ]; then \
			printf "$(MKL_GREEN)OK$(MKL_CLR_RESET)\n" ; \
		else \
			printf "$(MKL_RED)MISSING$(MKL_CLR_RESET)\n" ; \
			RET=false ; \
		fi ; \
	done ; \
	$$RET

copyright-check:
	@(_exit=0 ; \
	  for f in $$(git ls-tree -r --name-only HEAD | \
			egrep '\.(c|h|cpp|sh|py|pl)$$' ) ; do \
		if [ -n "$(MKL_COPYRIGHT_SKIP)" ] && echo "$$f" | egrep -q "$(MKL_COPYRIGHT_SKIP)" ; then \
			continue ; \
		fi ; \
		if ! head -40 $$f | grep -qi copyright $$f ; then \
			echo error: Copyright missing in $$f ; \
			_exit=1 ; \
		fi; \
	done ; \
	exit $$_exit)


lib-install:
	@printf "$(MKL_YELLOW)Install $(LIBNAME) to $$DESTDIR$(prefix)$(MKL_CLR_RESET)\n"
	$(INSTALL) -d $$DESTDIR$(includedir)/$(PKGNAME)
	$(INSTALL) -d $$DESTDIR$(libdir)
	$(INSTALL) $(HDRS) $$DESTDIR$(includedir)/$(PKGNAME)
	$(INSTALL) $(LIBNAME).a $$DESTDIR$(libdir)
	[ ! -f $(LIBNAME)-static.a ] || $(INSTALL) $(LIBNAME)-static.a $$DESTDIR$(libdir)
	$(INSTALL) $(LIBFILENAME) $$DESTDIR$(libdir)
	[ -f "$(LIBNAME0).pc" ] && ( \
		$(INSTALL) -d $$DESTDIR$(pkgconfigdir) && \
		$(INSTALL) -m 0644 $(LIBNAME0).pc $$DESTDIR$(pkgconfigdir) \
	)
	[ -f "$(LIBNAME0)-static.pc" ] && ( \
		$(INSTALL) -d $$DESTDIR$(pkgconfigdir) && \
		$(INSTALL) -m 0644 $(LIBNAME0)-static.pc $$DESTDIR$(pkgconfigdir) \
	)
	(cd $$DESTDIR$(libdir) && ln -sf $(LIBFILENAME) $(LIBFILENAMELINK))

lib-uninstall:
	@printf "$(MKL_YELLOW)Uninstall $(LIBNAME) from $$DESTDIR$(prefix)$(MKL_CLR_RESET)\n"
	for hdr in $(HDRS) ; do \
		rm -f $$DESTDIR$(includedir)/$(PKGNAME)/$$hdr ; done
	rm -f $$DESTDIR$(libdir)/$(LIBNAME).a
	rm -f $$DESTDIR$(libdir)/$(LIBNAME)-static.a
	rm -f $$DESTDIR$(libdir)/$(LIBFILENAME)
	rm -f $$DESTDIR$(libdir)/$(LIBFILENAMELINK)
	rmdir $$DESTDIR$(includedir)/$(PKGNAME) || true
	rm -f $$DESTDIR$(pkgconfigdir)/$(LIBNAME0).pc
	rm -f $$DESTDIR$(pkgconfigdir)/$(LIBNAME0)-static.pc
	rmdir $$DESTDIR$(pkgconfigdir) || true

bin-install:
	@printf "$(MKL_YELLOW)Install $(BIN) to $$DESTDIR$(prefix)$(MKL_CLR_RESET)\n"
	$(INSTALL) -d $$DESTDIR$(bindir) && \
	$(INSTALL) $(BIN) $$DESTDIR$(bindir)

bin-uninstall:
	@printf "$(MKL_YELLOW)Uninstall $(BIN) from $$DESTDIR$(prefix)$(MKL_CLR_RESET)\n"
	rm -f $$DESTDIR$(bindir)/$(BIN)
	rmdir $$DESTDIR$(bindir) || true

doc-install: $(DOC_FILES)
	@printf "$(MKL_YELLOW)Installing documentation to $$DESTDIR$(prefix)$(MKL_CLR_RESET)\n"
	$(INSTALL) -d $$DESTDIR$(docdir)
	$(INSTALL) $(DOC_FILES) $$DESTDIR$(docdir)

doc-uninstall:
	@printf "$(MKL_YELLOW)Uninstall documentation from $$DESTDIR$(prefix)$(MKL_CLR_RESET)\n"
	for _f in $(DOC_FILES) ; do rm -f $$DESTDIR$(docdir)/$$_f ; done
	rmdir $$DESTDIR$(docdir) || true

generic-clean:
	rm -f $(OBJS) $(DEPS)

lib-clean: generic-clean lib-clean-pkg-config
	rm -f $(LIBNAME)*.a $(LIBFILENAME) $(LIBFILENAMEDBG) \
		$(LIBFILENAMELINK) $(LIBNAME_LDS)

bin-clean: generic-clean
	rm -f $(BIN)

deps-clean:
	rm -rf "$(MKLOVE_DIR)/deps"