Merge branch 'es/st-add4-gcc-4.2-workaround' into maint

* es/st-add4-gcc-4.2-workaround:
  git-compat-util: st_add4: work around gcc 4.2.x compiler crash

git-compat-util.h

@@ -715,8 +715,8 @@ static inline size_t st_add(size_t a, size_t b)
 		    (uintmax_t)a, (uintmax_t)b);
 	return a + b;
 }
-#define st_add3(a,b,c)   st_add((a),st_add((b),(c)))
-#define st_add4(a,b,c,d) st_add((a),st_add3((b),(c),(d)))
+#define st_add3(a,b,c)   st_add(st_add((a),(b)),(c))
+#define st_add4(a,b,c,d) st_add(st_add3((a),(b),(c)),(d))
 
 static inline size_t st_mult(size_t a, size_t b)
 {