ref: 2d87009441efdc4fad9b3cb74bc0dd3288e87a9b
dir: /.lvimrc/
" Local vimrc configuration file.  Install the localvimrc.vim vim script.
set expandtab
set tabstop=8
set softtabstop=4
set shiftwidth=4
" Add all tag files to tags path.
let topdir = findfile("configure.ac", ".;")
let topdir = substitute(topdir, "configure.ac", "", "")
" Check tags file in current dir:
set tags+=tags
" Add tag files in parent directories:
let tagfiles = findfile("tags", ".;", -1)
" Add tag files for libraries:
call add(tagfiles, topdir . "opl/tags")
call add(tagfiles, topdir . "pcsound/tags")
call add(tagfiles, topdir . "textscreen/tags")
for tagfile in tagfiles
    " Don't go beyond the project top level when adding parent dirs:
    if stridx(tagfile, topdir) >= 0
        exec "set tags+=" . tagfile
    endif
endfor
unlet topdir
unlet tagfiles