From f1ef419be34a773677b7408bb7b5db02c2d93699 Mon Sep 17 00:00:00 2001
From: pacien <pacien.trangirard@pacien.net>
Date: Thu, 22 Aug 2019 17:55:50 +0200
Subject: [PATCH] exim: add SPF support

---
 pkgs/servers/mail/exim/default.nix | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/pkgs/servers/mail/exim/default.nix b/pkgs/servers/mail/exim/default.nix
index a537a4c6d00c..25a94cd27bfa 100644
--- a/pkgs/servers/mail/exim/default.nix
+++ b/pkgs/servers/mail/exim/default.nix
@@ -3,6 +3,7 @@
 , enableMySQL ? false, mysql, zlib
 , enableAuthDovecot ? false, dovecot
 , enablePAM ? false, pam
+, enableSPF ? true, libspf2
 }:
 
 stdenv.mkDerivation rec {
@@ -18,7 +19,8 @@ stdenv.mkDerivation rec {
     ++ stdenv.lib.optional enableLDAP openldap
     ++ stdenv.lib.optionals enableMySQL [ mysql.connector-c zlib ]
     ++ stdenv.lib.optional enableAuthDovecot dovecot
-    ++ stdenv.lib.optional enablePAM pam;
+    ++ stdenv.lib.optional enablePAM pam
+    ++ stdenv.lib.optional enableSPF libspf2;
 
   preBuild = ''
     sed '
@@ -64,6 +66,10 @@ stdenv.mkDerivation rec {
         s:^\(EXTRALIBS_EXIM\)=\(.*\):\1=\2 -lpam:
         s:^# \(EXTRALIBS_EXIM\)=.*:\1=-lpam:
       ''}
+      ${stdenv.lib.optionalString enableSPF ''
+        s:^# \(SUPPORT_SPF\)=.*:\1=yes:
+        s:^# \(LDFLAGS += -lspf2\):\1:
+      ''}
       #/^\s*#.*/d
       #/^\s*$/d
     ' < src/EDITME > Local/Makefile