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PR c/24010 * c.opt (Woverride-init): New. * c-opts.c (c_common_post_options): Default warn_override_init to extra_warnings. * c-typeck.c (add_pending_init, output_init_element): Warn for overriding initializers without side effects. * doc/invoke.texi (-Woverride-init): Document. (-Wextra): Update. testsuite: * gcc.dg/Woverride-init-1.c, gcc.dg/Woverride-init-2.c, gcc.dg/Woverride-init-3.c: New tests. From-SVN: r117334
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