#!/bin/bash
## src2pkg script for: 	kernel-headers
## src2pkg Copyright 2005-2008 Gilbert Ashley <amigo@ibilio.org>

# KNAME for standard kernels is 'huge, 'huge-smp', 'generic', or 'generic-smp'
# KNAME gets appended to the name of the package (like 'kernel-$KNAME')
# in order to avoid that installpkg or upgradepkg overwrite your existing kernel(s),
# You should give this kernel build a unique KNAME. The KNAME will be used
# to name the finished kernel (vmlinuz-$KNAME), System.map/System.map-$KNAME
# and config file (config-$KNAME). This script will search for a config file in the 
# directory where it is run. The config file should be named config-$KNAME-$VERSION,
# config-$KNAME or simply config.
KNAME='headers'

# edit to change this to the correct kernel version
SOURCE_NAME='linux-2.6.31.11.tar.bz2'
# reset the package name (which would normally be 'linux' in this case)
ALT_NAME="libc-headers"

# uncomment and edit this to reset the default VERSION (needed if using kernel version patches)
ALT_VERSION=2.6.31.11

# the build number for this package
BUILD='3'
# BUILD 2 	# add the headers for the aufs kernel patch we are using
# BUILD 3	# change the name from kernel-headers to libc-headers

# We want these to be right
CORRECT_PERMS=YES
SPLIT_PACKAGE=

# if you want to build a kernel for architecture other than ix86, change this
# the most likely alternatives are: ia64, ppc or x86_64
# this needs to be set so that the script can find the finished bzImage file 
# under $SRC_DIR/arch/$KARCH/boot/bzImage
KARCH='i386'

# Normally you shouldn't need to change anything below here
SOURCES_DIR=$PWD/../../kernel

PATCHLIST='4310_aufs2-31.11.patch'

# Get the functions and configs
. /usr/libexec/src2pkg/FUNCTIONS ;

# do_all_processes can substitute these 16 steps:

pre_process
find_source
make_dirs
unpack_source
fix_source_perms

#configure_source
#compile_source
#fake_install

if ! [[ -e $CWD/pkg-desc ]] ; then
cat > $CWD/pkg-desc <<EOF
$NAME: libc-headers System kernel headers
$NAME:
$NAME: This package contains the Linux kernel headers used for compiling glibc. They are
$NAME: needed when compiling most software for your system. This package should not be
$NAME: upgraded when upgrading to a newer kernel version. This package should only
$NAME: be upgraded when upgrading glibc or doing a complete system upgrade.
$NAME:
$NAME:
$NAME:
$NAME:
$NAME: Packaged by src2pkg

EOF
fi

( cd $SRC_DIR
	make mrproper
	make headers_check
	make headers_install
)

mkdir -p $PKG_DIR/usr/include
( cd $SRC_DIR/usr/include
	cp -a * $PKG_DIR/usr/include
	#mv $PKG_DIR/usr/include/asm $PKG_DIR/usr/include/asm-$KARCH
	#( cd $PKG_DIR/usr/include ; ln -sf asm-$KARCH asm )
)

# install the aufs headers which come with the kernel patch
# sanitize them using unifdef
( cd $SRC_DIR/include/linux
	../../scripts/unifdef -U__KERNEL__ aufs_type.h > $PKG_DIR/usr/include/linux/aufs_type.h
)

( cd $SRC_DIR/fs/aufs
	../../scripts/unifdef -U__KERNEL__ aufs.h > $PKG_DIR/usr/include/linux/aufs.h
)


# skip a bunch of fix-ups
skip() {
# now fix up missing headers.  We arbitrarily filter them
# with unifdef to avoid checking to see if they really need it
# we could have patched the Kbuild files to do this

# list of missing headers and the packages which need them:

# include/linux/linkage.h	sysklogd (ksym_mod.c)
# include/asm-generic/linkage.h syklogd
# 	include/asm-generic/linkage.h provides reasonable defaults
# 	the alternate arch/x86/include/asm/linkage.h includes linux/stringify and linux/compiler.h
#	It appears that the same may hold true for page.h (better to use the one from include/asm-generic)

( cd $SRC_DIR/include/linux
	for FILE in compiler.h linkage.h ; do
	 # sanitize them using unifdef
	  ../../scripts/unifdef -U__KERNEL__ $FILE > $PKG_DIR/usr/include/linux/$FILE
	done
)
( 
	if [[ $KARCH = "i386" ]] ; then
		# cd $SRC_DIR/arch/x86/include/asm
		cd $SRC_DIR/include/asm-generic
	else
		cd $SRC_DIR/arch/$KARCH/include/asm
	fi
	# include/asm-generic/linkage.h provides reasonable defaults
	for FILE in linkage.h page.h ; do
	 # sanitize them using unifdef
	  ../../../../scripts/unifdef -U__KERNEL__ $FILE > $PKG_DIR/usr/include/asm-$KARCH/$FILE
	done
)

# more missing headers pointed out on the ubuntu buglist
( cd $SRC_DIR/drivers/media/dvb/dvb-core
	for FILE in demux.h dmxdev.h dvbdev.h dvb_demux.h \
		dvb_frontend.h dvb_net.h dvb_ringbuffer.h ; do
		../../../../scripts/unifdef -U__KERNEL__ $FILE > $PKG_DIR/usr/include/linux/dvb/$FILE
	done
	cd ..
	../../../scripts/unifdef -U__KERNEL__ frontends/lgdt330x.h > $PKG_DIR/usr/include/linux/dvb/lgdt330x.h
	
	mkdir -p $PKG_DIR/usr/include/media
	cd $SRC_DIR/drivers/media/video
	../../../scripts/unifdef -U__KERNEL__ msp3400-driver.h > $PKG_DIR/usr/include/media/msp3400-driver.h
	# these are dependencies of the above msp3400-driver.h which lead to other unmet depends....
	# so we'll leave them out for now
	cd $SRC_DIR/include/media
	../../scripts/unifdef -U__KERNEL__ msp3400.h > $PKG_DIR/usr/include/media/msp3400.h
	../../scripts/unifdef -U__KERNEL__ v4l2-device.h > $PKG_DIR/usr/include/media/v4l2-device.h
	../../scripts/unifdef -U__KERNEL__ v4l2-subdev.h > $PKG_DIR/usr/include/media/v4l2-subdev.h
	../../scripts/unifdef -U__KERNEL__ v4l2-common.h > $PKG_DIR/usr/include/media/v4l2-common.h
	../../scripts/unifdef -U__KERNEL__ v4l2-dev.h > $PKG_DIR/usr/include/media/v4l2-dev.h
	# these look like they're pretty generic -especially mutex.h
	cd $SRC_DIR/include/linux
	../../scripts/unifdef -U__KERNEL__ device.h > $PKG_DIR/usr/include/linux/device.h
	../../scripts/unifdef -U__KERNEL__ cdev.h > $PKG_DIR/usr/include/linux/cdev.h
	../../scripts/unifdef -U__KERNEL__ mutex.h > $PKG_DIR/usr/include/linux/mutex.h
	../../scripts/unifdef -U__KERNEL__ stringify.h > $PKG_DIR/usr/include/linux/stringify.h
	# others listed by ubuntu -all under drivers/media/dvb:
	# b2c2, bt8xx, dm1105, dvb-usb, pluto2, siano, ttpci, ttusb-budget, ttusb-dec
)

}

# as someone else said: the install rule sucks
( cd $PKG_DIR/usr/include
	find -name ".install*" -exec rm -f {} \;
	find -name "..install*" -exec rm -f {} \;
	find -name ".check*" -exec rm -f {} \;
	find -name "..check*" -exec rm -f {} \;
)

# remove stuff supplied elsewhere
( cd $PKG_DIR/usr/include
	rm -f scsi/scsi.h
	# for using modern versions of libdrm and its' dependencies,
	# leave these headers in, instead of removing
	rm -rf drm
)

#mkdir -p $PKG_DIR/install
#cat > $PKG_DIR/install/doinst.sh <<EOF
#( cd usr/include ; rm -rf asm )
#( cd usr/include ; ln -sf asm-$KARCH asm )
#EOF

fix_pkg_perms
strip_bins
create_docs
compress_man_pages
make_description
make_doinst
make_package
post_process

# src2pkg - Copyright 2005-2008  Gilbert Ashley <amigo@ibiblio.org>
## See the documentation for more help and examples. Below are some of
# the most common Extras and Options for easy cut-and-paste use.
# EXTRA_CONFIGS='' PRE_FIX='' DOCLIST=''
# MAKE_COMMAND='' INSTALL_LINE='' 
# SHELL_INSTALL='YES' CORRECT_PERMS='NO'
# When editing src2pkg scripts to add custom code, use these variables
# to refer to the current directory, the sources or the package tree:
# $CWD (current directory), $SRC_DIR (sources), $PKG_DIR (package tree)