postfix: Add version 2.11.0 as nixpkgs.postfix211

I think this version should replace the current nixpkgs.postfix,
but it could potentially break stuff since the version jump is
big (2.8 -> 2.11).

pkgs/servers/mail/postfix/2.11.nix

@@ -0,0 +1,62 @@
+{ stdenv, fetchurl, makeWrapper, gnused, db, openssl, cyrus_sasl, coreutils
+, findutils, gnugrep, gawk
+}:
+
+stdenv.mkDerivation rec {
+
+  name = "postfix-${version}";
+
+  version = "2.11.0";
+
+  src = fetchurl {
+    url = "ftp://ftp.cs.uu.nl/mirror/postfix/postfix-release/official/${name}.tar.gz";
+    sha256 = "0f0c6cv6j5m5n4bjp18llvbbxmzmhb70qw1z9vf7h9k6slr9s7fa";
+  };
+
+  patches = [ ./postfix-2.11.0.patch ];
+
+  buildInputs = [ makeWrapper gnused db openssl cyrus_sasl ];
+
+  preBuild = ''
+    sed -e '/^PATH=/d' -i postfix-install
+
+    export command_directory=$out/sbin
+    export config_directory=$out/etc/postfix
+    export daemon_directory=$out/libexec/postfix
+    export data_directory=/var/lib/postfix
+    export html_directory=$out/share/postfix/doc/html
+    export mailq_path=$out/bin/mailq
+    export manpage_directory=$out/share/man
+    export newaliases_path=$out/bin/newaliases
+    export queue_directory=/var/spool/postfix
+    export readme_directory=$out/share/postfix/doc
+    export sendmail_path=$out/bin/sendmail
+
+    make makefiles \
+      CCARGS='-DUSE_TLS -DUSE_SASL_AUTH -DUSE_CYRUS_SASL -I${cyrus_sasl}/include/sasl' \
+      AUXLIBS='-ldb -lnsl -lresolv -lsasl2 -lcrypto -lssl'
+  '';
+
+  installTargets = [ "non-interactive-package" ];
+
+  installFlags = [ " install_root=$out " ];
+
+  postInstall = ''
+    mkdir -p $out
+    mv -v ut/$out/* $out/
+    sed -e '/^PATH=/d' -i $out/libexec/postfix/post-install
+    wrapProgram $out/libexec/postfix/post-install \
+      --prefix PATH ":" ${coreutils}/bin:${findutils}/bin:${gnugrep}/bin
+    wrapProgram $out/libexec/postfix/postfix-script \
+      --prefix PATH ":" ${coreutils}/bin:${findutils}/bin:${gnugrep}/bin:${gawk}/bin:${gnused}/bin
+  '';
+
+  meta = {
+    homepage = "http://www.postfix.org/";
+    description = "A fast, easy to administer, and secure mail server";
+    license = stdenv.lib.licenses.bsdOriginal;
+    platforms = stdenv.lib.platforms.linux;
+    maintainers = [ stdenv.lib.maintainers.rickynils ];
+  };
+
+}

pkgs/servers/mail/postfix/postfix-2.11.0.patch

@@ -0,0 +1,76 @@
+diff -ruN postfix-2.11.0-orig/makedefs postfix-2.11.0/makedefs
+--- postfix-2.11.0-orig/makedefs	2014-01-05 18:18:56.000000000 +0100
++++ postfix-2.11.0/makedefs	2014-04-24 09:27:58.193869491 +0200
+@@ -290,36 +290,6 @@
+ 		esac
+ 		;;
+     Linux.2*)	SYSTYPE=LINUX2
+-		case "$CCARGS" in
+-		 *-DNO_DB*) ;;
+-		 *-DHAS_DB*) ;;
+-		 *) if [ -f /usr/include/db.h ]
+-		    then
+-			: we are all set
+-		    elif [ -f /usr/include/db/db.h ]
+-		    then
+-			CCARGS="$CCARGS -I/usr/include/db"
+-		    else
+-			# No, we're not going to try db1 db2 db3 etc.
+-			# On a properly installed system, Postfix builds
+-			# by including <db.h> and by linking with -ldb
+-			echo "No <db.h> include file found." 1>&2
+-			echo "Install the appropriate db*-devel package first." 1>&2
+-			exit 1
+-		    fi
+-		    SYSLIBS="-ldb"
+-		    ;;
+-		esac
+-		for name in nsl resolv $GDBM_LIBS
+-		do
+-		    for lib in /usr/lib64 /lib64 /usr/lib /lib
+-		    do
+-			test -e $lib/lib$name.a -o -e $lib/lib$name.so && {
+-			    SYSLIBS="$SYSLIBS -l$name"
+-			    break
+-			}
+-		    done
+-		done
+ 		# Kernel 2.4 added IPv6
+ 		case "$RELEASE" in
+ 		2.[0-3].*) CCARGS="$CCARGS -DNO_IPV6";;
+@@ -363,35 +333,6 @@
+ 		esac
+ 		;;
+     Linux.3*)	SYSTYPE=LINUX3
+-		case "$CCARGS" in
+-		 *-DNO_DB*) ;;
+-		 *-DHAS_DB*) ;;
+-		 *) if [ -f /usr/include/db.h ]
+-		    then
+-			: we are all set
+-		    elif [ -f /usr/include/db/db.h ]
+-		    then
+-			CCARGS="$CCARGS -I/usr/include/db"
+-		    else
+-			# On a properly installed system, Postfix builds
+-			# by including <db.h> and by linking with -ldb
+-			echo "No <db.h> include file found." 1>&2
+-			echo "Install the appropriate db*-devel package first." 1>&2
+-			exit 1
+-		    fi
+-		    SYSLIBS="-ldb"
+-		    ;;
+-		esac
+-		for name in nsl resolv
+-		do
+-		    for lib in /usr/lib64 /lib64 /usr/lib /usr/lib/* /lib /lib/*
+-		    do
+-			test -e $lib/lib$name.a -o -e $lib/lib$name.so && {
+-			    SYSLIBS="$SYSLIBS -l$name"
+-			    break
+-			}
+-		    done
+-		done
+ 		;;
+      GNU.0*|GNU/kFreeBSD.[567]*)
+ 		SYSTYPE=GNU0

pkgs/top-level/all-packages.nix

@@ -6530,6 +6530,8 @@ let
 
   postfix = callPackage ../servers/mail/postfix { };
 
+  postfix211 = callPackage ../servers/mail/postfix/2.11.nix { };
+
   pulseaudio = callPackage ../servers/pulseaudio {
     gconf = gnome.GConf;
     # The following are disabled in the default build, because if this