#!/bin/bash
# read the configure line from an rpm .spec file and prune out the prefix stuff
# this for spec files which have the '%configure line'
LINE_COUNT=0
FIRST_LINE=0
LAST_LINE=0
while read LINE ; do
	(( LINE_COUNT++ )) 
	CHUNK=$LINE	
	if [[ $FIRST_LINE -ne 0 ]] && [[ $LINE_COUNT -eq $FIRST_LINE ]] ; then
		echo $CHUNK
	elif [[ ${CHUNK:0:10} = "%configure" ]] && [[ $FIRST_LINE -eq 0 ]] ; then
		if [[ ${CHUNK:10} != "" ]] ; then
			CHUNK=${CHUNK/\%configure/}
			CHUNK=${CHUNK/--prefix=/}
			CHUNK=${CHUNK/\%\{_prefix\}/}
			echo $CHUNK
		fi
		FIRST_LINE=$(( $LINE_COUNT ))
	elif [[ ${CHUNK:0:1} = "%" ]] || [[ ${CHUNK:0:1} != " " ]] && [[ $FIRST_LINE -ne 0 ]] ; then
		LAST_LINE=$(( $LINE_COUNT -1 ))
		break
	elif [[ $FIRST_LINE -ne 0 ]] && [[ $LAST_LINE -eq 0 ]] ; then
		if [[ "$CHUNK" != "" ]] ; then
			CHUNK=${CHUNK/\%configure/}
			CHUNK=${CHUNK/--prefix=/}
			CHUNK=${CHUNK/\%\{_prefix\}/}
			echo $CHUNK
		fi
	fi
done