diff -ur evolution-2.27.4.1/configure.ac evolution-2.27.4.1.patched/configure.ac
--- evolution-2.27.4.1/configure.ac	2009-07-15 11:25:24.000000000 +0200
+++ evolution-2.27.4.1.patched/configure.ac	2009-07-22 10:25:16.000000000 +0200
@@ -558,7 +558,7 @@
 
 SAVE_CFLAGS="$CFLAGS"
 SAVE_LIBS="$LIBS"
-LDAP_CFLAGS="$LDAP_CFLAGS -DLDAP_DEPRECATED"
+LDAP_CFLAGS="$LDAP_CFLAGS -DLDAP_DEPRECATED -I$with_openldap/include"
 CFLAGS="$CFLAGS $LDAP_CFLAGS"
 LIBS="$LIBS $LDAP_LIBS"
 AC_CHECK_FUNCS(ldap_ntlm_bind)