Me := $(lastword ${MAKEFILE_LIST})
include var.mk
KVer = 27.4

Sqlzma34 = sqlzma3.4-457
SqlzmaPath = ftp.slax.org/source/slax/sqlzma
Sq34 = ${Sqlzma34}/squashfs3.4
Sq34Patch = ${Sq34}/kernel-patches/linux-2.6.27-rc4/squashfs3.4-patch
Sq34KDir = ${Sq34}/kernel-patches/linux-2.6.${KVer}
Tgt = ${Sq34}/fs/squashfs/squashfs.ko ${Sq34}/squashfs-tools/mksquashfs

all:
	@echo \- Get linux-2.6.${KVer} and extract it under a dir named ${Linux26}
	@echo \- Build linux-2.6.${KVer} by \"cd ${Linux26} '&& make &&' make headers_install\"
	@echo \- Get sqlzma by \"make -f ${Me} download\"
	@echo \- Extract it by \"make -f ${Me} extract\"
	@echo \- Build it by \"make -f ${Me} build\"
	@echo \- Install it by \"make -f ${Me} install\" as superuser

clean:
	${RM} -r ${Sqlzma34} sqlzma34-extract

realclean: clean
	${RM} -r ${SqlzmaPath} sqlzma34-download

download extract build install: %: sqlzma34-%

########################################

sqlzma34-download:
	wget --no-verbose -x \
		ftp://${SqlzmaPath}/squashfs3.4.tar.gz \
		ftp://${SqlzmaPath}/lzma457.tar.bz2 \
		ftp://${SqlzmaPath}/sqlzma3.4-457.tar.bz2
	touch $@

sqlzma34-extract: sqlzma34-download
	mkdir -p ${Sq34KDir} ${Sqlzma34}/lzma457
	tar -C ${Sqlzma34} -xpzf ${SqlzmaPath}/squashfs3.4.tar.gz
	tar -C ${Sqlzma34}/lzma457 -xpjf ${SqlzmaPath}/lzma457.tar.bz2
	tar -C ${Sqlzma34} -xpjf ${SqlzmaPath}/${Sqlzma34}.tar.bz2
	-patch -d ${Sq34KDir} -sf -p1 < ${Sq34Patch}
	patch -d ${Sqlzma34}/lzma457 -s -p1 < ${Sqlzma34}/sqlzma1-457.patch
	patch -d ${Sq34KDir} -s -p1 < ${Sqlzma34}/sqlzma2k-3.4.patch
	patch -d ${Sq34}/squashfs-tools -s -p2 < ${Sqlzma34}/sqlzma2u-3.4.patch
	touch $@

sqlzma34-build: sqlzma34-extract
	${MAKE} -C ${Sqlzma34} KDir=${Linux26}

sqlzma34-install: sqlzma34-build
	for i in ${Sqlzma34}/lzma457/C/Compress/Lzma/kmod \
		${Sq34KDir}/fs/squashfs; \
	do ${MAKE} -C ${Linux26} M=${CURDIR}/$${i} modules_install; \
	done