Do not add -I/usr/include to the compile line just because we will
install bluez-utils there says zecke...

Index: bluez-utils-2.25/acinclude.m4
===================================================================
--- bluez-utils-2.25.orig/acinclude.m4	2006-05-18 12:39:57.473577920 +0200
+++ bluez-utils-2.25/acinclude.m4	2006-05-19 00:58:52.694599848 +0200
@@ -69,7 +69,9 @@
 	ac_save_LDFLAGS=$LDFLAGS
 
 	BLUEZ_CFLAGS=""
-	test -d "${bluez_prefix}/include" && BLUEZ_CFLAGS="$BLUEZ_CFLAGS -I${bluez_prefix}/include"
+	if test "$cross_compiling" = no; then
+		test -d "${bluez_prefix}/include" && BLUEZ_CFLAGS="$BLUEZ_CFLAGS -I${bluez_prefix}/include"
+	fi
 
 	CPPFLAGS="$CPPFLAGS $BLUEZ_CFLAGS"
 	AC_CHECK_HEADER(bluetooth/bluetooth.h, dummy=yes, AC_MSG_ERROR(Bluetooth header files not found))