diff --git a/exim.changes b/exim.changes
index fc0148c..0f27de0 100644
--- a/exim.changes
+++ b/exim.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Fri May  6 20:00:38 UTC 2011 - lars@samba.org
+
+- Cast third arg to void * when calling ldap_set_option().
+
 -------------------------------------------------------------------
 Fri May  6 19:14:37 UTC 2011 - lars@samba.org
 
diff --git a/exim.spec b/exim.spec
index 61cfb23..572032b 100644
--- a/exim.spec
+++ b/exim.spec
@@ -62,6 +62,7 @@ Source20:       http://www.logic.univie.ac.at/~ametzler/debian/exim4manpages/exi
 Source30:       eximstats-html-update.py
 Source31:       eximstats.conf
 Patch:          exim-4.12-tail.patch
+Patch1:         ldap_set_option-void-cast.diff
 %if !%{?build_with_mysql:1}0 && !%{?build_with_pgsql:1}0 
 
 %package -n eximon
@@ -128,6 +129,7 @@ Authors:
 %prep
 %setup -q -n exim-%{version}
 %patch
+%patch1 -p1
 # build with fPIE/pie on SUSE 10.0 or newer, or on any other platform
 %if %{?suse_version:%suse_version}%{?!suse_version:99999} > 930
 fPIE="-fPIE"
diff --git a/ldap_set_option-void-cast.diff b/ldap_set_option-void-cast.diff
new file mode 100644
index 0000000..a3dee30
--- /dev/null
+++ b/ldap_set_option-void-cast.diff
@@ -0,0 +1,13 @@
+Index: exim-4.75/src/lookups/ldap.c
+===================================================================
+--- exim-4.75.orig/src/lookups/ldap.c
++++ exim-4.75/src/lookups/ldap.c
+@@ -481,7 +481,7 @@ if (lcp == NULL)
+       {
+       cert_option = LDAP_OPT_X_TLS_TRY;
+       }
+-    ldap_set_option(ld, LDAP_OPT_X_TLS_REQUIRE_CERT, cert_option);
++    ldap_set_option(ld, LDAP_OPT_X_TLS_REQUIRE_CERT, (void *)&cert_option);
+     }
+   #endif
+