--- /dev/null
+/* { dg-do compile } */
+/* { dg-options "-Wwrite-strings" } */
+/* The purpose of this test is to ensure that line numbers in diagnostics
+ are accurate after macros whose arguments contain newlines and are
+ substituted multiple times. The semicolons are on separate lines because
+ #line can only correct numbering on line boundaries. */
+#define one(x) x
+#define two(x) x x
+#define four(x) two(x) two(x)
+
+int
+main(void)
+{
+ char *A;
+
+ A = "text"; /* { dg-warning "discards qualifiers" "case zero" } */
+ A = one("text"
+ "text")
+ ; /* { dg-warning "discards qualifiers" "case one" } */
+ A = two("text"
+ "text")
+ ; /* { dg-warning "discards qualifiers" "case two" } */
+ A = four("text"
+ "text")
+ ; /* { dg-warning "discards qualifiers" "case four" } */
+
+ return 0;
+}