makefile

# in bash we trust
SHELL=/bin/bash
DirRepo=${PWD}
TMUX_VERSION=2.3
PREFIX=${HOME}/local
DirTmp=${HOME}/tmux_tmp
# catch the leading number of the version 'A', where:
# gcc --version == A.B.C
#GCC_VERSION="$(gcc --version | grep gcc | awk '{print $3}' | awk -F. '{print $1}')"
GCC_VERSION = $(shell gcc --version | grep ^gcc | sed 's/^.* //g')
TMUX_GZ=tmux-${TMUX_VERSION}.tar.gz

# dont' associate these rules with files/dirs
.PHONY: tmux

libevent:
	cp -pv ${DirRepo}/tmux/requirements/libevent-2.0.19-stable.tar.gz ${DirTmp}/.
	cd ${DirTmp} \
	tar xvzf libevent-2.0.19-stable.tar.gz \
	cd libevent-2.0.19-stable \
	./configure --prefix=${PREFIX} --disable-shared \
	make \
	make install 


ncurses:
	cp -pv ${DirRepo}/tmux/requirements/ncurses-5.9.tar.gz ${DirTmp}/.
	cd ${DirTmp} \
		&& tar xvzf ./ncurses-5.9.tar.gz
	# check if we need to use the ncurses patch
	echo -e "\n [*] gcc version: ${GCC_VERSION}\n"; \
	if [[ ${GCC_VERSION} =~ ^[5-9].* ]]; then \
		echo -e "\n [*] using ncurses patch for >=gcc-5.*\n"; \
		cp -v ${DirRepo}/tmux/requirements/patches/MKlib_gen.sh ${DirTmp}/ncurses-5.9/ncurses/base/.; \
	fi
	cd ${DirTmp}/ncurses-5.9 \
		./configure --prefix=${PREFIX} \
		make \
		make install


tmux:
	[[ ! -f ${TMUX_GZ} ]] \
	&& wget \
		-O ${TMUX_GZ} \
		https://github.com/tmux/tmux/releases/download/${TMUX_VERSION}/tmux-${TMUX_VERSION}.tar.gz
	mkdir -p ${PREFIX} ${DirTmp}
	$(MAKE) ncurses
	$(MAKE) libevent
	#--- ok, now we build tmux-{TMUX_VERSION}
	tar xvzf ${TMUX_GZ} 
	cd tmux-${TMUX_VERSION}; \
	./configure \
		CFLAGS="-I${PREFIX}/include -I${PREFIX}/include/ncurses" \
		LDFLAGS="-L${PREFIX}/lib -L${PREFIX}/include/ncurses -L${PREFIX}/include"; \
	CPPFLAGS="-I${PREFIX}/include -I${PREFIX}/include/ncurses" \
		LDFLAGS="-static -L${PREFIX}/include -L${PREFIX}/include/ncurses -L${PREFIX}/lib" \
		make; \
	cp tmux ${PREFIX}/bin/tmux_${TMUX_VERSION}; \
	rm -rf ${DirTmp}


clean:
	-rm -rf ${DirTmp} ${TMUX_GZ}

#EOF