# @FUNCTION: unpack_2_4

# @USAGE:

# @DESCRIPTION:

# unpack and generate .config for 2.4 kernels

unpack_2_4() {

	# this file is required for other things to build properly,

	# so we autogenerate it

	make -s mrproper ${xmakeopts} || die "make mrproper failed"

	make -s symlinks ${xmakeopts} || die "make symlinks failed"

	make -s include/linux/version.h ${xmakeopts} || die "make include/linux/version.h failed"

	elog ">>> version.h compiled successfully."

}

# @FUNCTION: unpack_2_6

# @USAGE:

# @DESCRIPTION:

# unpack and generate .config for 2.6 kernels

unpack_2_6() {

	# this file is required for other things to build properly, so we

	# autogenerate it ... generate a .config to keep version.h build from

	# spitting out an annoying warning

	make -s mrproper ${xmakeopts} 2>/dev/null \

		|| die "make mrproper failed"

	# quick fix for bug #132152 which triggers when it cannot include linux

	# headers (ie, we have not installed it yet)

	if ! make -s defconfig ${xmakeopts} &>/dev/null; then

		touch .config

		eerror "make defconfig failed."

		eerror "assuming you dont have any headers installed yet and continuing"

	fi

	make -s include/linux/version.h ${xmakeopts} 2>/dev/null \

		|| die "make include/linux/version.h failed"

	rm -f .config >/dev/null

}

	# do not apply fbcondecor patch to sparc/sparc64 as it breaks boot

	# bug #272676

	if [[ $(tc-arch) = sparc || $(tc-arch) = sparc64 ]]; then

		if [[ ${KV_MAJOR} -ge 3 ]] || ver_test ${KV_MAJOR}.${KV_MINOR}.${KV_PATCH} -gt 2.6.28; then

			if [[ ! -z ${K_WANT_GENPATCHES} ]]; then

				UNIPATCH_DROP="${UNIPATCH_DROP} *_fbcondecor*.patch"

				ewarn "fbcondecor currently prevents sparc/sparc64 from booting"

				ewarn "for kernel versions >= 2.6.29. Removing fbcondecor patch."

				ewarn "See https://bugs.gentoo.org/show_bug.cgi?id=272676 for details"

			fi

		fi

	fi

	# We dont need a version.h for anything other than headers

	# at least, I should hope we dont. If this causes problems

	# take out the if/fi block and inform me please.

	# unpack_2_6 should now be 2.6.17 safe anyways

	if [[ ${ETYPE} == headers ]]; then

		kernel_is 2 4 && unpack_2_4

		kernel_is 2 6 && unpack_2_6

	fi

	if kernel_is 2 4; then

		if [[ $(gcc-major-version) -ge 4 ]]; then

			ewarn "Be warned !! >=sys-devel/gcc-4.0.0 isn't supported with linux-2.4!"

			ewarn "Either switch to another gcc-version (via gcc-config) or use a"

			ewarn "newer kernel that supports >=sys-devel/gcc-4."

			ewarn "Also, be aware that bug reports about gcc-4 not working"

			ewarn "with linux-2.4 based ebuilds will be closed as INVALID!"

		fi

	fi

-