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-rw-r--r--gcc/c-family/c-opts.cc11
1 files changed, 11 insertions, 0 deletions
diff --git a/gcc/c-family/c-opts.cc b/gcc/c-family/c-opts.cc
index 872bdf4..795f5a3 100644
--- a/gcc/c-family/c-opts.cc
+++ b/gcc/c-family/c-opts.cc
@@ -1226,6 +1226,17 @@ c_common_post_options (const char **pfilename)
SET_OPTION_IF_UNSET (&global_options, &global_options_set,
flag_range_for_ext_temps, cxx_dialect >= cxx23);
+ /* EnabledBy unfortunately can't specify value to use if set and
+ LangEnabledBy can't specify multiple options with &&. For -Wunused
+ or -Wunused -Wextra we want these to default to 3 unless user specified
+ some other level explicitly. */
+ if (warn_unused_but_set_parameter == 1)
+ SET_OPTION_IF_UNSET (&global_options, &global_options_set,
+ warn_unused_but_set_parameter, 3);
+ if (warn_unused_but_set_variable == 1)
+ SET_OPTION_IF_UNSET (&global_options, &global_options_set,
+ warn_unused_but_set_variable, 3);
+
/* -fimmediate-escalation has no effect when immediate functions are not
supported. */
if (flag_immediate_escalation && cxx_dialect < cxx20)