re PR c/88568 ('dllimport' no longer implies 'extern' in C)

	PR c/88568
	* attribs.c (handle_dll_attribute): Clear TREE_STATIC after setting
	DECL_EXTERNAL.

	* gcc.dg/pr88568.c: New test.

From-SVN: r267799

gcc/ChangeLog

+2019-01-10  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c/88568
+	* attribs.c (handle_dll_attribute): Clear TREE_STATIC after setting
+	DECL_EXTERNAL.
+
 2019-01-10  Tamar Christina  <tamar.christina@arm.com>
 
 	* config/arm/arm-builtins.c

gcc/attribs.c

@@ -1691,6 +1691,8 @@ handle_dll_attribute (tree * pnode, tree name, tree args, int flags,
 	     a function global scope, unless declared static.  */
 	  if (current_function_decl != NULL_TREE && !TREE_STATIC (node))
 	    TREE_PUBLIC (node) = 1;
+	  /* Clear TREE_STATIC because DECL_EXTERNAL is set.  */
+	  TREE_STATIC (node) = 0;
 	}
 
       if (*no_add_attrs == false)

gcc/testsuite/ChangeLog

+2019-01-10  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c/88568
+	* gcc.dg/pr88568.c: New test.
+
 2019-01-10  Tamar Christina  <tamar.christina@arm.com>
 
 	* gcc.target/aarch64/advsimd-intrinsics/vector-complex.c: Add AArch32 regexpr.

gcc/testsuite/gcc.dg/pr88568.c

+/* PR c/88568 */
+/* { dg-do compile } */
+/* { dg-require-dll "" } */
+__attribute__((dllimport)) struct S var;	/* { dg-bogus "storage size of .var. isn.t known" } */