# This file is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as 
# published by the Free Software Foundation here:
# (http://www.gnu.org/licenses/gpl-2.0.html)
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.

export SRCPKG = glibc
export DEPENDS = bash,dash,tzdata
export ARCH = x86_64
export URL = https://www.gnu.org/software/libc/
REPO = core
BRIEF = The GNU C Library
DESC = The GNU C Library is used as the C library in the GNU system and in \
GNU/Linux systems, as well as many other systems that use Linux as the kernel.
SNAPVER = 9

ARCHIVE := $(PWD)/SRC/$(shell ls SRC|egrep '(bz2|gz|tar|xz)$$'|tail -1)
TYPE := $(shell file -ib $(ARCHIVE)|cut -d';' -f1|tr -d '\n')
SRCDIR := $(shell tar -tf $(ARCHIVE)|head -1|sed 's/\/.*//')
PATCHDIR := $(PWD)/SRC/patches
BUILDDIR := $(PWD)/BUILD
export VERSION := $(shell echo $(SRCDIR)|egrep -o '\-[0-9].*'| \
	sed 's/^-//')-$(SNAPVER)

DEV := $(PWD)/glibc-dev
DEVROOT := $(DEV)/ROOT

include /usr/share/snap/Makefile.snaplinux

$(SRCDIR)/configure: $(ARCHIVE)
	@if [ '$(TYPE)' == 'application/x-bzip2' ]; then \
		tar -jxf $(ARCHIVE); \
	elif [ '$(TYPE)' == 'application/x-gzip' ]; then \
		tar -zxf $(ARCHIVE); \
	elif [ '$(TYPE)' == 'application/x-tar' ]; then \
		tar -xf $(ARCHIVE); \
	elif [ '$(TYPE)' == 'application/x-xz' ]; then \
		tar -xf $(ARCHIVE); \
	else \
		echo 'Unable to determine archive type'; \
		exit 1; \
	fi
	@touch $(SRCDIR)/configure

$(BUILDDIR)/config.log: $(SRCDIR)/configure
	@cd $(SRCDIR) && \
	for patch in `find $(PATCHDIR) -name \*.patch|sort`; do \
		patch --verbose -Np0 -i $$patch; \
	done
	@if [ ! -d $(BUILDDIR) ]; then \
		mkdir -v $(BUILDDIR); \
	fi
	@cd $(BUILDDIR); \
	../$(SRCDIR)/configure \
		--prefix=/usr \
		--enable-kernel=2.6.32 \
		--enable-obsolete-rpc \
		--build=x86_64-snap-linux-gnu \
		--host=x86_64-snap-linux-gnu \
		--target=x86_64-snap-linux-gnu

$(BUILDDIR)/elf/ldd: $(BUILDDIR)/config.log
	@cd $(BUILDDIR) && make

$(ROOT): $(BUILDDIR)/elf/ldd
	@if [ -d $(ROOT) ]; then \
		touch $(ROOT); \
	else \
		mkdir -v $(ROOT); \
	fi

	@cd $(BUILDDIR) && make install DESTDIR=$(ROOT) && \
	install -d -m 755 $(ROOT)/etc/ld.so.conf.d && \
	install -d -m 755 $(ROOT)/var/cache/nscd && \
	install -d -m 755 $(ROOT)/usr/share/glibc && \
	install -m 644 $(PWD)/SNAP/ld.so.conf \
		$(ROOT)/usr/share/glibc/ld.so.conf && \
	install -m 644 $(PWD)/SNAP/nsswitch.conf \
		$(ROOT)/usr/share/glibc/nsswitch.conf && \
	rm -v $(ROOT)/usr/share/info/dir && \
	mv -v $(ROOT)/etc/ld.so.cache $(ROOT)/usr/share/glibc

	@install -d -v $(DEV)/SNAP && \
	for file in `find $(ROOT)|egrep 'man3\/|\.a$$|\.c$$|\.h$$'`; do \
		path=`dirname $$file|sed "s[$(ROOT)[$(DEVROOT)["`; \
		mkdir -p $$path; \
		mv $$file $$path; \
	done && \
	find $(ROOT) -type d -empty -delete && \
	cd $(DEV) && make -f ../Makefile.glibc-dev && mv *.snap ../	

test: $(ROOT)
	@cd $(BUILDDIR) && make check

clean:
	@rm -rvf $(ROOT) \
		$(DEV) \
		$(SNAPINFO) \
		$(MANIFEST) \
		$(FILES) \
		$(SRCDIR) \
		$(BUILDDIR)