Makefile.main

############################# configurable section #############################
#
# Copyright © 2015-2023 Boian Bonev (bbonev@ipacct.com) {{{
#
# SPDX-License-Identifer: LGPL-3.0-or-later
#
# This file is part of yascreen - yet another screen library.
#
# yascreen is free software, released under the terms of GNU Lesser General Public License v3.0 or later
#
# }}}

# configure install path

PREFIX?=/usr/local
LIBDIR?=/lib/
INCDIR?=/include/

# configure debug or release build

# for debug build, uncomment the line below
#DEBUG?=-DDEBUG=1 -O0 -g3 -fno-inline -fstack-protector-all
DEBUG?=-O3

# configure default tools

# make defines AR, so we have to override to gcc-ar, so -flto works
AR=gcc-ar
RANLIB?=gcc-ranlib
INSTALL?=install

########################## end of configurable section #########################

VER=$(shell grep Revision yascreen.c|head -n1|sed -e 's/.\+Revision: \([0-9.]\+\) \+.\+/\1/'|tr . ' '|awk '{printf "%i.%02u\n",$$1+$$2/100,$$2%100}')

# shared library version

SOVERM:=0
SOVERF:=0.0.0

SONAME:=-Wl,-soname,libyascreen.so.$(SOVERM)

ifeq ($(shell uname -s),Darwin) # tested on 17.7
AR=ar
RANLIB=ranlib
NO_VERSIONED:=1
NO_FLTO:=1
SONAME:=
endif

ifeq ($(shell uname -s),FreeBSD) # tested on 14.0
AR=ar
RANLIB=ranlib
endif

ifeq ($(shell uname -s),OpenBSD) # tested on 7.2
AR=ar
RANLIB=ranlib
NO_VERSIONED:=1
endif

ifeq ($(shell uname -s),NetBSD) # tested on 9.3
AR=ar
RANLIB=ranlib
NO_VERSIONED:=1
NO_FLTO:=1
endif

ifndef NO_FLTO
CHECK_CC_FLAGS:=-Wall -Wextra -I. --std=gnu89 -fPIC -flto=auto
else
CHECK_CC_FLAGS:=-Wall -Wextra -I. --std=gnu89 -fPIC
endif

# remove unsupported flags from CCOPT
define check_cc_flag
$(shell echo 'int main(){return 0;}'|$(CC) $(1) -xc - -o /dev/null 2>/dev/null && echo $(1))
endef
HAVE_FLAGS+=$(foreach flag,$(CHECK_CC_FLAGS),$(call check_cc_flag,$(flag)))
CCOPT:=$(HAVE_FLAGS)

# build versioned library by default

ifndef NO_VERSIONED
CCOPT+=-DYASCREEN_VERSIONED=1
LDOPT:=-Wl,--version-script,yascreen.vers
else
CCOPT+=-DYASCREEN_VERSIONED=0
endif

# allow to pass additional compiler flags

MYCFLAGS=$(DEBUG) $(CPPFLAGS) $(CFLAGS) $(CCOPT)
MYLDFLAGS=$(LDFLAGS) $(LDOPT)

all: libyascreen.a libyascreen.so yascreen.pc

yascreen.o: yascreen.c yascreen.h yascreen_feed.c
	$(CC) $(MYCFLAGS) -o $@ -c $<

yastest.o: yastest.c yascreen.h
	$(CC) $(MYCFLAGS) -o $@ -c $<

yastest: yastest.o yascreen.o
	$(CC) $(MYCFLAGS) -o $@ $^

yastest.shared: yastest.o libyascreen.so
	$(CC) $(MYCFLAGS) -o $@ $^ -L. -lyascreen

libyascreen.a: yascreen.o
	$(AR) r $@ $^
	$(RANLIB) $@

libyascreen.so: libyascreen.so.$(SOVERM)
	ln -fs $^ $@

libyascreen.so.$(SOVERM): libyascreen.so.$(SOVERF)
	ln -fs $^ $@

libyascreen.so.$(SOVERF): yascreen.o yascreen.vers
	$(CC) $(MYCFLAGS) $(MYLDFLAGS) -o $@ $< -fPIC -shared $(SONAME)

yascreen.pc: yascreen.pc.in
	sed \
		-e 's|YASCREENVERSION|$(VER)|' \
		-e 's|YASCREENPREFIX|$(PREFIX)|' \
		-e 's|YASCREENLIBDIR|$(PREFIX)$(LIBDIR)|' \
		-e 's|YASCREENINCDIR|$(PREFIX)$(INCDIR)|' \
	< $< > $@

install: libyascreen.a libyascreen.so yascreen.pc yascreen.3
	$(INSTALL) -Ds -m 0644 -t $(DESTDIR)$(PREFIX)$(LIBDIR) libyascreen.a
	$(INSTALL) -D -m 0644 -t $(DESTDIR)$(PREFIX)$(LIBDIR)/pkgconfig/ yascreen.pc
	ln -fs libyascreen.so.$(SOVERF) $(DESTDIR)$(PREFIX)$(LIBDIR)libyascreen.so.$(SOVERM)
	ln -fs libyascreen.so.$(SOVERM) $(DESTDIR)$(PREFIX)$(LIBDIR)libyascreen.so
	$(INSTALL) -Ds -m 0644 -t $(DESTDIR)$(PREFIX)$(LIBDIR) libyascreen.so.$(SOVERF)
	$(INSTALL) -D -m 0644 -t $(DESTDIR)$(PREFIX)$(INCDIR) yascreen.h
	$(INSTALL) -D -m 0644 yascreen.3 $(DESTDIR)$(PREFIX)/share/man/man3/yascreen.3

clean:
	rm -f yastest yastest.shared yastest.o yascreen.o libyascreen.a libyascreen.so libyascreen.so.$(SOVERM) libyascreen.so.$(SOVERF) yascreen.pc

re: rebuild
rebuild:
	$(MAKE) clean
	$(MAKE) -j all

mkotar:
	$(MAKE) clean
	dh_clean
	$(MAKE) yascreen.3
	tar \
		--xform 's,^[.],yascreen-$(VER),' \
		--exclude ./.git \
		--exclude ./.github/CVS \
		--exclude ./.github/workflows/CVS \
		--exclude ./.gitignore \
		--exclude ./.cvsignore \
		--exclude ./CVS \
		--exclude ./debian \
		--exclude ./fedora/CVS \
		-Jcvf ../yascreen_$(VER).orig.tar.xz .
	-rm -f ../yascreen_$(VER).orig.tar.xz.asc
	gpg -a --detach-sign ../yascreen_$(VER).orig.tar.xz
	cp -fa ../yascreen_$(VER).orig.tar.xz ../yascreen-$(VER).tar.xz
	cp -fa ../yascreen_$(VER).orig.tar.xz.asc ../yascreen-$(VER).tar.xz.asc

yascreen.3: README.md
	go-md2man < README.md > yascreen.3

.PHONY: install clean rebuild re all mkotar