Fix out of tree build errors and parallel make issues. The mkdir commands 
can race each other. The srcdir variable is a complete path so a ../ prefix makes
no sense.

Upstream-Status: Pending

RP 2013/03/21

Index: libuser/docs/Makefile.am
===================================================================
--- libuser/docs.orig/Makefile.am	2012-11-08 02:25:58.000000000 +0000
+++ libuser/docs/Makefile.am	2013-03-21 14:15:40.756950231 +0000
@@ -13,9 +13,9 @@
 		< $(srcdir)/libuser.conf.5.in > $@
 
 sgml/libuser.txt: $(srcdir)/sgml/libuser.sgml
-	[ -d sgml ] || mkdir sgml
-	cd sgml; sgml2txt ../$(srcdir)/sgml/libuser.sgml
+	[ -d sgml ] || mkdir sgml || true
+	cd sgml; sgml2txt $(srcdir)/sgml/libuser.sgml
 
 sgml/libuser.html: $(srcdir)/sgml/libuser.sgml
-	[ -d sgml ] || mkdir sgml
-	cd sgml; sgml2html ../$(srcdir)/sgml/libuser.sgml
+	[ -d sgml ] || mkdir sgml || true
+	cd sgml; sgml2html $(srcdir)/sgml/libuser.sgml