--- a/Makefile	Thu Feb 05 17:23:53 2015 +0100
+++ b/Makefile	Sat Feb 21 10:34:56 2015 +0100
@@ -3,14 +3,14 @@
 
 BIN = $(DESTDIR)$(PREFIX)/bin
 CONFIG = $(DESTDIR)$(SYSCONFDIR)
-MODULES = $(DESTDIR)$(PREFIX)/lib/prosody/modules
-SOURCE = $(DESTDIR)$(PREFIX)/lib/prosody
+MODULES = $(DESTDIR)$(LIBDIR)/prosody/modules
+SOURCE = $(DESTDIR)$(LIBDIR)/prosody
 DATA = $(DESTDIR)$(DATADIR)
 MAN = $(DESTDIR)$(PREFIX)/share/man
 
-INSTALLEDSOURCE = $(PREFIX)/lib/prosody
+INSTALLEDSOURCE = $(LIBDIR)/prosody
 INSTALLEDCONFIG = $(SYSCONFDIR)
-INSTALLEDMODULES = $(PREFIX)/lib/prosody/modules
+INSTALLEDMODULES = $(LIBDIR)/prosody/modules
 INSTALLEDDATA = $(DATADIR)
 
 .PHONY: all clean install

--- a/configure	Thu Feb 05 17:23:53 2015 +0100
+++ b/configure	Sat Feb 21 10:34:56 2015 +0100
@@ -4,6 +4,7 @@
 
 PREFIX=/usr/local
 SYSCONFDIR="$PREFIX/etc/prosody"
+LIBDIR="$PREFIX/lib"
 DATADIR="$PREFIX/var/lib/prosody"
 LUA_SUFFIX=""
 LUA_DIR="/usr"
@@ -36,6 +37,8 @@
                             Default is $PREFIX
 --sysconfdir=DIR            Location where the config file should be installed.
                             Default is \$PREFIX/etc/prosody
+--libdir=DIR                Location where the server files should be stored.
+                            Default is \$PREFIX/lib
 --datadir=DIR               Location where the server data should be stored.
                             Default is \$PREFIX/var/lib/prosody
 --lua-suffix=SUFFIX         Versioning suffix to use in Lua filenames.
@@ -133,6 +136,9 @@
         LUA_INCDIR="/usr/local/include";
       fi
       ;;
+   --libdir=*)
+      LIBDIR="$value"
+      ;;
    --datadir=*)
    	DATADIR="$value"
    	DATADIR_SET=yes
@@ -337,6 +343,7 @@
 
 PREFIX=$PREFIX
 SYSCONFDIR=$SYSCONFDIR
+LIBDIR=$LIBDIR
 DATADIR=$DATADIR
 LUA_SUFFIX=$LUA_SUFFIX
 LUA_DIR=$LUA_DIR

--- a/tools/migration/Makefile	Thu Feb 05 17:23:53 2015 +0100
+++ b/tools/migration/Makefile	Sat Feb 21 10:34:56 2015 +0100
@@ -3,13 +3,13 @@
 
 BIN = $(DESTDIR)$(PREFIX)/bin
 CONFIG = $(DESTDIR)$(SYSCONFDIR)
-SOURCE = $(DESTDIR)$(PREFIX)/lib/prosody
+SOURCE = $(DESTDIR)$(LIBDIR)/prosody
 DATA = $(DESTDIR)$(DATADIR)
 MAN = $(DESTDIR)$(PREFIX)/share/man
 
-INSTALLEDSOURCE = $(PREFIX)/lib/prosody
+INSTALLEDSOURCE = $(LIBDIR)/prosody
 INSTALLEDCONFIG = $(SYSCONFDIR)
-INSTALLEDMODULES = $(PREFIX)/lib/prosody/modules
+INSTALLEDMODULES = $(LIBDIR)/prosody/modules
 INSTALLEDDATA = $(DATADIR)
 
 SOURCE_FILES = migrator/*.lua

--- a/util/datamanager.lua	Thu Feb 05 17:23:53 2015 +0100
+++ b/util/datamanager.lua	Sat Feb 21 10:34:56 2015 +0100
@@ -163,7 +163,7 @@
 	return nil, msg;
 end
 
-if prosody.platform ~= "posix" then
+if prosody and prosody.platform ~= "posix" then
 	-- os.rename does not overwrite existing files on Windows
 	-- TODO We could use Transactional NTFS on Vista and above
 	function atomic_store(filename, data)