revert:
- * [*cgi] Use physical base dir (alias, userdir) as DOCUMENT_ROOT in cgi environments (fixes #2216)
+
+probably fixed in
+https://github.com/lighttpd/lighttpd1.4/commit/7fa5bfc9381764d6c35ac29674bd830e8e5fee33
--- lighttpd-1.4.36/src/mod_fastcgi.c~ 2015-07-26 18:30:29.000000000 +0300
+++ lighttpd-1.4.36/src/mod_fastcgi.c 2015-07-26 18:31:50.285226477 +0300