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* include/private/gc_priv.h (WARN macro): Add "GC warning:" prefix. (GC_large_alloc_warn_interval, GC_large_alloc_warn_suppressed): declare. * allchblk.c (GC_allchblk_nth): Change text and support reduced frequency for blacklist warning message. * misc.c (GC_large_alloc_warn_interval, GC_large_alloc_warn_suppressed): define. (GC_init_inner): Check GC_NO_BLACKLIST_WARNING and GC_LARGE_ALLOC_WARN_INTERVAL environment variables. * doc/README.environment (GC_NO_BLACKLIST_WARNING): Deprecate. (GC_LARGE_ALLOC_WARN_INTERVAL): Add documentation. * dyn_load.c (_DYNAMIC): Move declaration to file scope. From-SVN: r52053
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