&& test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
cat >> confdefs.h <<EOF
#define PREFIX_INCLUDE_DIR "$prefix/include"
&& test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
cat >> confdefs.h <<EOF
#define PREFIX_INCLUDE_DIR "$prefix/include"