diff --git a/.cvsignore b/.cvsignore
index 750bfae..4c8a7ee 100644
--- a/.cvsignore
+++ b/.cvsignore
@@ -1,3 +1,3 @@
-otp_src_R12B-1.tar.gz
-otp_doc_man_R12B-1.tar.gz
-otp_doc_html_R12B-1.tar.gz
+otp_src_R12B-4.tar.gz
+otp_doc_html_R12B-4.tar.gz
+otp_doc_man_R12B-4.tar.gz
diff --git a/erlang.spec b/erlang.spec
index 38cc2e2..f1dff09 100644
--- a/erlang.spec
+++ b/erlang.spec
@@ -1,14 +1,14 @@
 Name:           erlang
 Version:        R12B
-Release:        1.1%{?dist}
+Release:        4.1%{?dist}
 Summary:        General-purpose programming language and runtime environment
 
 Group:          Development/Languages
 License:        Erlang Public License
 URL:            http://www.erlang.org
-Source:         http://www.erlang.org/download/otp_src_R12B-1.tar.gz
-Source1:	http://www.erlang.org/download/otp_doc_html_R12B-1.tar.gz
-Source2:	http://www.erlang.org/download/otp_doc_man_R12B-1.tar.gz
+Source:         http://www.erlang.org/download/otp_src_R12B-4.tar.gz
+Source1:	http://www.erlang.org/download/otp_doc_html_R12B-4.tar.gz
+Source2:	http://www.erlang.org/download/otp_doc_man_R12B-4.tar.gz
 Patch0:		otp-links.patch
 Patch1:		otp-install.patch
 Patch2:		otp-rpath.patch
@@ -20,6 +20,7 @@ BuildRequires:  openssl-devel
 BuildRequires:  unixODBC-devel
 BuildRequires:	tcl-devel
 BuildRequires:	tk-devel
+BuildRequires:  gd-devel
 BuildRequires:	java-1.5.0-gcj-devel
 BuildRequires:  flex
 BuildRequires:	m4
@@ -42,17 +43,18 @@ Documentation for Erlang.
 
 
 %prep
-%setup -q -n otp_src_R12B-1
+%setup -q -n otp_src_R12B-4
 %patch0 -p1 -b .links
 %patch1 -p1 -b .install
 %patch2 -p1 -b .rpath
 %patch3 -p1 -b .sslrpath
+
 # enable dynamic linking for ssl
 sed -i 's|SSL_DYNAMIC_ONLY=no|SSL_DYNAMIC_ONLY=yes|' erts/configure
 sed -i 's|^LD.*=.*|LD = gcc -shared|' lib/common_test/c_src/Makefile
 
 %build
-./configure --prefix=%{_prefix} --exec-prefix=%{_prefix} --bindir=%{_bindir} --libdir=%{_libdir}
+CFLAGS="-fno-strict-aliasing" ./configure --prefix=%{_prefix} --exec-prefix=%{_prefix} --bindir=%{_bindir} --libdir=%{_libdir}
 chmod -R u+w .
 make
 
@@ -107,6 +109,9 @@ rm -rf $RPM_BUILD_ROOT
 
 
 %changelog
+* Sat Oct 25 2008 Gerard Milmeister <gemi@bluewin.ch> - R12B-4.1
+- new release R12B-4
+
 * Thu Mar 27 2008 Gerard Milmeister <gemi@bluewin.ch> - R12B-1.1
 - new release R12B-1
 
diff --git a/otp-null.patch b/otp-null.patch
new file mode 100644
index 0000000..77a0a72
--- /dev/null
+++ b/otp-null.patch
@@ -0,0 +1,11 @@
+diff -up otp_src_R12B-0/lib/orber/c_src/setsockaddr_in.c.null otp_src_R12B-0/lib/orber/c_src/setsockaddr_in.c
+--- otp_src_R12B-0/lib/orber/c_src/setsockaddr_in.c.null	2008-02-23 13:46:52.000000000 +0100
++++ otp_src_R12B-0/lib/orber/c_src/setsockaddr_in.c	2008-02-23 13:47:15.000000000 +0100
+@@ -17,6 +17,7 @@
+  *     $Id: otp-null.patch,v 1.1 2008/10/25 21:52:10 gemi Exp $
+  *
+  */
++#include <stdlib.h>
+ #include "inet.h"
+ 
+ #ifdef HAVE_CONFIG_H
diff --git a/otp-rpath.patch b/otp-rpath.patch
index 9e82e62..95d38d2 100644
--- a/otp-rpath.patch
+++ b/otp-rpath.patch
@@ -1,17 +1,19 @@
---- otp_src_R10B-8/lib/crypto/c_src/Makefile.in.rpath	2005-10-29 22:50:59.000000000 +0200
-+++ otp_src_R10B-8/lib/crypto/c_src/Makefile.in	2005-10-29 22:51:23.000000000 +0200
-@@ -79,7 +79,7 @@
- ifeq ($(HOST_OS),)
+diff -up otp_src_R12B-4/lib/crypto/c_src/Makefile.in.rpath otp_src_R12B-4/lib/crypto/c_src/Makefile.in
+--- otp_src_R12B-4/lib/crypto/c_src/Makefile.in.rpath	2008-10-25 22:20:42.000000000 +0200
++++ otp_src_R12B-4/lib/crypto/c_src/Makefile.in	2008-10-25 22:20:59.000000000 +0200
+@@ -80,7 +80,7 @@ ifeq ($(HOST_OS),)
  HOST_OS := $(shell $(ERL_TOP)/erts/autoconf/config.guess)
  endif
+ DYNAMIC_CRYPTO_LIB=@SSL_DYNAMIC_ONLY@
 -LD_R_FLAG=@DED_LD_FLAG_RUNTIME_LIBRARY_PATH@
 +LD_R_FLAG=
  ifeq ($(strip $(LD_R_FLAG)),)
  LD_R_OPT =
  else
---- otp_src_R10B-8/lib/crypto/priv/Makefile.rpath	2005-10-29 22:52:01.000000000 +0200
-+++ otp_src_R10B-8/lib/crypto/priv/Makefile	2005-10-29 22:52:32.000000000 +0200
-@@ -60,7 +60,7 @@
+diff -up otp_src_R12B-4/lib/crypto/priv/Makefile.rpath otp_src_R12B-4/lib/crypto/priv/Makefile
+--- otp_src_R12B-4/lib/crypto/priv/Makefile.rpath	2008-10-25 22:21:11.000000000 +0200
++++ otp_src_R12B-4/lib/crypto/priv/Makefile	2008-10-25 22:21:33.000000000 +0200
+@@ -60,7 +60,7 @@ OBJS = $(OBJDIR)/crypto_drv.o
  # ----------------------------------------------------
  
  $(SO_DRIVER): $(OBJS)
@@ -20,9 +22,10 @@
  	-o $@ $^ -lcrypto
  
  $(DLL_DRIVER): $(OBJS)
---- otp_src_R10B-8/lib/ssl/c_src/Makefile.in.rpath	2005-10-29 22:53:15.000000000 +0200
-+++ otp_src_R10B-8/lib/ssl/c_src/Makefile.in	2005-10-29 22:53:50.000000000 +0200
-@@ -104,9 +104,9 @@
+diff -up otp_src_R12B-4/lib/ssl/c_src/Makefile.in.rpath otp_src_R12B-4/lib/ssl/c_src/Makefile.in
+--- otp_src_R12B-4/lib/ssl/c_src/Makefile.in.rpath	2008-10-25 22:21:51.000000000 +0200
++++ otp_src_R12B-4/lib/ssl/c_src/Makefile.in	2008-10-25 22:22:21.000000000 +0200
+@@ -111,9 +111,9 @@ ifeq ($(findstring darwin,$(TARGET)),dar
  CC_R_FLAG =
  else
  ifeq ($(findstring osf,$(TARGET)),osf)		# osf1: -Wl,-rpath,
@@ -33,4 +36,4 @@
 +CC_R_FLAG =
  endif
  endif
- 
+ endif
diff --git a/sources b/sources
index 0c7d74f..7e171fb 100644
--- a/sources
+++ b/sources
@@ -1,3 +1,3 @@
-6de3630b446e9c2150edfe01e383c917  otp_src_R12B-1.tar.gz
-96da62bcfb40e5d3ec2945bb2b050024  otp_doc_man_R12B-1.tar.gz
-3dd8aee17fcbd3e5fda7313208fce6ac  otp_doc_html_R12B-1.tar.gz
+ae81edda4a17506af7a9d73abca033b2  otp_src_R12B-4.tar.gz
+f633cd418d8260af7a11c998aa88072b  otp_doc_html_R12B-4.tar.gz
+ef8f96d1721a2345cc87b208cde3de06  otp_doc_man_R12B-4.tar.gz