+# Test the gen-tree features that avoid creating string labels for nodes.
+AT_SETUP([gen-tree.awk @nostrtab option])
+AT_KEYWORDS([gen-tree awk script scripts])
+
+AT_DATA([tree.def],
+[[@nostrtab
+ROOT
+ a 1, a_OFFSET
+ b 1
+ c 2
+ d 2, d_OFFSET
+ e 1
+ f 2
+]])
+AT_CHECK([$AWK -f "$builddir/scripts/gen-tree.awk" <tree.def >tree.h])
+
+AT_DATA([test0.c],
+[[float tree_strtab = 0;
+#define a []
+#define b []
+#define c []
+#define e []
+#define f []
+#include "tree.h"
+#include <stdio.h>
+
+static struct { int num, offset; } root[] = { ROOT_INITIALIZER };
+
+int main(void)
+{
+ unsigned i;
+ for (i = 0; i < sizeof root / sizeof root[0]; i++) {
+ printf("%d, %d\n", root[i].num, root[i].offset);
+ }
+}
+]])
+
+AT_CHECK([$CC -o test0$EXEEXT test0.c && ./test0$EXEEXT], [0],
+[[1, 3
+2, 6
+0, 0
+1, 0
+2, 0
+0, 0
+1, 0
+2, 0
+0, 0
+]])
+
+AT_DATA([flat.def],
+[[FLAT
+ a 1
+ b 2
+ c 3
+@nostrtab
+]])
+AT_CHECK([$AWK -f "$builddir/scripts/gen-tree.awk" <flat.def >flat.h])
+
+sed -e 's/tree\.h/flat.h/' -e 's/ROOT/FLAT/' test0.c >test1.c
+AT_CHECK([$CC -o test1$EXEEXT test1.c && ./test1$EXEEXT], [0],
+[[1, 0
+2, 0
+3, 0
+0, 0
+]])
+
+AT_CLEANUP
+