Makefile.in

# Makefile to be included by package's makefile
#
# This file includes the rules for download, extract and patch tarballs.
# There is also rules to generate the packages, clean up the build files,
# give information and so on.
#
# Your makefile must define some variables and include this file. Then
# define the rules for building and package preparation. See the packages
# zlib, rsync and dropbear for examples.

default: all

FLOAT=hard
FPU=vfp
HOST=$(shell $(CC) -dumpmachine)
TARGET=arm-linux-musleabihf
ARCH=arm
ARM_ARCH=armv6zk

# often used workaround to recognize musl triple
SEDMUSL=sed -i -e 's/linux-uclibc/linux-musl/'

export LC_ALL=POSIX
export CFLAGS=
export CXXFLAGS=

export CC=$(TARGET)-gcc
export CXX=$(TARGET)-g++
export AR=$(TARGET)-ar
export AS=$(TARGET)-as
export LD=$(TARGET)-ld
export RANLIB=$(TARGET)-ranlib
export READELF=$(TARGET)-readelf
export STRIP=$(TARGET)-strip --strip-unneeded

ifdef PKGNAME

# default PKGPATH
ifndef PKGPATH
ifdef PKGVERSION
PKGPATH=$(PKGNAME)-$(PKGVERSION)
endif
endif

# default PKGFILE
ifndef PKGFILE
ifdef PKGPATH
ifdef PKGFEXT
PKGFILE=$(PKGPATH).tar.$(PKGFEXT)
endif
endif
endif

# default PKGNAMVER
ifndef PKGNAMVER
PKGNAMVER=$(PKGPATH)
endif

endif

# performs checksum verification in a tarball
md5sum:
ifdef PKGMD5SUM
ifdef PKGFILE
	@echo "$(PKGMD5SUM)  $(PKGFILE)" | md5sum -c
endif
endif

# shows package name and brief description
show:
ifdef PKGNAME
ifdef PKGDESC
	@printf "  %-20s%s\n" "$(PKGNAME)" "$(PKGDESC)"
endif
endif

# shows package version and download site
version:
ifdef PKGNAMVER
	@printf "  %-20s%s\n" "$(PKGNAMVER)" "$(PKGSITE)"
endif

# cleans generated or temporary files
clean:
	@echo $(RM) -r -- $(PKGCLEAN) *.d *.tgz *.part
	@$(RM) -r -- $(PKGCLEAN) *.d *.tgz *.part

# cleans build files
binclean: clean
	@echo $(RM) -r -- $(PKGBCLEAN) $(PKGPATH)
	@$(RM) -r -- $(PKGBCLEAN) $(PKGPATH) ...

# cleans downloaded files
downclean: binclean
	@echo $(RM) -r -- $(PKGDCLEAN) $(PKGFILE)
	@$(RM) -r -- $(PKGDCLEAN) $(PKGFILE)

ifdef PKGNAME

# generates a package with version and list info
%.tgz: LRPKG=$</var/lib/lrpkg
%.tgz: %.d
	@mkdir -p $(LRPKG)
	@printf "\
DEPENDENCIES='$(PKGDEPENDENCIES)'\n\
DESCRIPTION='$(PKGDESC)'\n\
CATEGORIES='$(PKGCATEGORIES)'\n\
VERSION='$(PKGVERSION)'\n\
BUILD='$$(date "+%F %T")'\n" > $(LRPKG)/$*.info
	@touch $(LRPKG)/$*.list
	@find $</ -type f -o -type l | sed "s,$</,," > $(LRPKG)/$*.list
	@tar czf $@ -C $</ --owner=root --group=root -T $(LRPKG)/$*.list
	@mkdir -p ../../../boot/packages
	@ln -f $@ ../../../boot/packages/$@
endif

# extracts a tarball and apply a patch if any
ifdef PKGFILE
$(PKGPATH): $(PKGFILE)
	@tar xvf $<
ifdef PKGPATCH
	@cd $@ && patch -Np1 -i ../$(PKGPATCH)
endif
	@ln -s $@ ...
	@touch $@
ifdef PKGDEPENDENCIES
	@$(MAKE) $(PKGDEPENDENCIES)
endif

# downloads a tarball
$(PKGFILE):
	@wget -c $(PKGDOWN)$@ -O $(PKGPATH).part
	@mv $(PKGPATH).part $@
	@echo "$(PKGMD5SUM)  $@" | md5sum -c || $(RM) -- $@
endif

$(PKGDEPENDENCIES):
	@for i in $@; do \
		$(MAKE) -C "../$$i"; \
	done

categories:
ifdef PKGCATEGORIES
	@for i in $(PKGCATEGORIES); do \
		mkdir -p ../../$$i; \
		ln -sf ../../Makefile ../../$$i; \
		ln -sf ../all/$(PKGNAME) ../../$$i; \
	done
endif

.PHONY: all default show version clean binclean downclean md5sum categories