exit_if_err $HERE"Can not extract -- tar -tzf $tgz_file"
}
function convert_to_unix #dir $qhull_2ufiles -- convert files to Unix, preserving modtime from $root_dir
{
local temp_dir=$1
local HERE=$(ro_here)
log_note $HERE"Convert files to unix format in $1"
for f in $(find $temp_dir -type f | grep -E '^([^.]*|.*\.(ac|am|bashrc|c|cfg|cpp|css|d|dpatch|h|htm|html|man|pl|pri|pro|profile|sh|sql|termcap|txt|xml|xsd|xsl))$'); do