# Copyright 1999-2003 Gentoo Technologies, Inc.
# Distributed under the terms of the GNU General Public License v2
# $Header: /home/cvsroot/gentoo-x86/eclass/debug.eclass,v 1.18 2003/02/16 04:26:21 vapier Exp $
#
# Author: ferringb
#
# >=alsa-lib-1.0 is binary compatible w/ <alsa-lib-1.0, but requires a few
# new defines for compilation to use the old HW interface.

inherit base
ECLASS=alsa-lib
INHERITED="$INHERITED $ECLASS"


alsa-lib_src_unpack() {
	debug-print-function $FUNCNAME $*

	base_src_unpack $*
	alsa-lib_fix_includes ${S}
}

#
# scans for asoundlib.h inclusion, and defines the necesary symbols to use 
# the old api.
#
alsa-lib_fix_includes() {
	debug-print-function $FUNCNAME $*

	ebegin "Patching for alsa-lib 1.0 compilation breakage"

	while [ -n "$1" ]; do
	cd ${1}
	for x in `find ./ -type f -regex '.*.\(c\(\|c\|pp\)\|h\)' \
		-exec grep -l '<alsa/asoundlib.h>' {} \; ` ; do
		echo "patching ${x}"
		sed -i -e 's:<alsa/asoundlib.h>:<alsa/version.h>\n#     if SND_LIB_MAJOR==1\n#define ALSA_PCM_OLD_HW_PARAMS_API\n#define ALSA_PCM_NEW_HW_PARAMS_API\n#     endif\n#include <alsa/asoundlib.h>:' ${x}
	done
	shift
	done
	eend 0
}

EXPORT_FUNCTIONS src_unpack