+#if GCC_VERSION >= 3000 || __STDC_VERSION__ >= 199901L
+/* Use preprocessor trickery to map "build" to "buildN" where N is the
+ expected number of arguments. This is used for both efficiency (no
+ varargs), and checking (verifying number of passed arguments). */
+#define build(code, ...) \
+ _buildN1(build, _buildC1(__VA_ARGS__))(code, __VA_ARGS__)
+#define _buildN1(BASE, X) _buildN2(BASE, X)
+#define _buildN2(BASE, X) BASE##X
+#define _buildC1(...) _buildC2(__VA_ARGS__,9,8,7,6,5,4,3,2,1,0,0)
+#define _buildC2(x,a1,a2,a3,a4,a5,a6,a7,a8,a9,c,...) c
+#endif
+
+extern tree build0_stat (enum tree_code, tree MEM_STAT_DECL);
+#define build0(c,t) build0_stat (c,t MEM_STAT_INFO)
+extern tree build1_stat (enum tree_code, tree, tree MEM_STAT_DECL);
+#define build1(c,t1,t2) build1_stat (c,t1,t2 MEM_STAT_INFO)
+extern tree build2_stat (enum tree_code, tree, tree, tree MEM_STAT_DECL);
+#define build2(c,t1,t2,t3) build2_stat (c,t1,t2,t3 MEM_STAT_INFO)
+extern tree build3_stat (enum tree_code, tree, tree, tree, tree MEM_STAT_DECL);
+#define build3(c,t1,t2,t3,t4) build3_stat (c,t1,t2,t3,t4 MEM_STAT_INFO)
+extern tree build4_stat (enum tree_code, tree, tree, tree, tree,
+ tree MEM_STAT_DECL);
+#define build4(c,t1,t2,t3,t4,t5) build4_stat (c,t1,t2,t3,t4,t5 MEM_STAT_INFO)
+