objc-runtime-shared-support.c (build_module_descriptor): Set TREE_USED on UOBJC_MODUL...

	* objc-runtime-shared-support.c (build_module_descriptor): Set
	TREE_USED on UOBJC_MODULES_decl.

From-SVN: r224213

diff --git a/gcc/objc/ChangeLog b/gcc/objc/ChangeLog
index 03327a52703767f569c0b859a76cfb1078e06e43..46c3cfdb9392b36ff59b9210f0f800c329eeb85a 100644 (file)
--- a/gcc/objc/ChangeLog
+++ b/gcc/objc/ChangeLog
@@ -1,3 +1,8 @@
+2015-06-08  Aldy Hernandez  <aldyh@redhat.com>
+
+       * objc-runtime-shared-support.c (build_module_descriptor): Set
+       TREE_USED on UOBJC_MODULES_decl.
+
 2015-06-05  Aldy Hernandez  <aldyh@redhat.com>
 
        * objc-act.c (objc_write_global_declarations): Adjust comment.

diff --git a/gcc/objc/objc-runtime-shared-support.c b/gcc/objc/objc-runtime-shared-support.c
index d9b3c27af47f61e855c0bb3ed43b857ca11f6909..1bcb14a298111e9501f1e0434877d3e6905785cd 100644 (file)
--- a/gcc/objc/objc-runtime-shared-support.c
+++ b/gcc/objc/objc-runtime-shared-support.c
@@ -519,6 +519,9 @@ build_module_descriptor (long vers, tree attr)
      is referenced by the runtime and, therefore, needed.  */
   DECL_PRESERVE_P (UOBJC_MODULES_decl) = 1;
 
+  /* Squash `defined but not used' warning.  */
+  TREE_USED (UOBJC_MODULES_decl) = 1;
+
   /* Allow the runtime to mark meta-data such that it can be assigned to target
      specific sections by the back-end.  */
   if (attr)