------- Comment #2 from manu at gcc dot gnu dot org 2009-07-02 23:41 -------
We can add an option Wunused-result that controls the warnings.
Wno-unused-result and -Werror=unused-result will then work as expected.
Index: gcc/c-common.c
===================================================================
--- gcc/c-common.c (revision 149197)
+++ gcc/c-common.c (working copy)
@@ -8258,13 +8258,14 @@ c_warn_unused_result (gimple_seq seq)
location_t loc = gimple_location (g);
if (fdecl)
- warning (0, "%Hignoring return value of %qD, "
- "declared with attribute warn_unused_result",
- &loc, fdecl);
+ warning_at (loc, OPT_Wunused_result,
+ "ignoring return value of %qD, "
+ "declared with attribute warn_unused_result",
+ fdecl);
else
- warning (0, "%Hignoring return value of function "
- "declared with attribute warn_unused_result",
- &loc);
+ warning_at (loc, OPT_Wunused_result,
+ "ignoring return value of function "
+ "declared with attribute warn_unused_result");
}
break;
--
manu at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |manu at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40614
