diff -ur dovecot-1.0.alpha5-o/src/auth/mech-gssapi.c dovecot-1.0.alpha5/src/auth/mech-gssapi.c
--- dovecot-1.0.alpha5-o/src/auth/mech-gssapi.c	2005-10-28 05:50:23.000000000 -0600
+++ dovecot-1.0.alpha5/src/auth/mech-gssapi.c	2005-12-27 00:59:36.000000000 -0700
@@ -27,7 +27,7 @@
 
 #ifdef HAVE_GSSAPI
 
-#include <gssapi/gssapi.h>
+#include <gssapi.h>
 
 /* Non-zero flags defined in RFC 2222 */
 enum sasl_gssapi_qop {
--- dovecot-1.0.rc1/configure.in.orig	2006-06-28 00:17:16.000000000 +0200
+++ dovecot-1.0.rc1/configure.in	2006-06-28 21:50:11.883707048 +0200
@@ -1403,7 +1403,7 @@
 			# have gssapi.h
 			old_CFLAGS=$CFLAGS
 			CFLAGS="$CFLAGS `krb5-config --cflags gssapi`"
-			AC_CHECK_HEADER([gssapi/gssapi.h], [
+			AC_CHECK_HEADER([gssapi.h], [
 				AC_DEFINE(HAVE_GSSAPI,, Build with GSSAPI support)
 				have_gssapi=yes
 			])