===================================================================
@@ -888,7 +888,7 @@ extern void fancy_abort (const char *, int, const
PREFERRED_OUTPUT_RELOAD_CLASS SYSTEM_INCLUDE_DIR \
STANDARD_INCLUDE_DIR STANDARD_INCLUDE_COMPONENT \
LINK_ELIMINATE_DUPLICATE_LDIRECTORIES MIPS_DEBUGGING_INFO \
- IDENT_ASM_OP
+ IDENT_ASM_OP USE_COMMON_FOR_ONE_ONLY
/* Hooks that are no longer used. */
#pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \
===================================================================
@@ -332,12 +332,6 @@ see the files COPYING3 and COPYING.RUNTIME respect
# endif
#endif
-/* Determines whether we may use common symbols to represent one-only
- semantics (a.k.a. "vague linkage"). */
-#ifndef USE_COMMON_FOR_ONE_ONLY
-# define USE_COMMON_FOR_ONE_ONLY 1
-#endif
-
/* By default we can assume that all global symbols are in one namespace,
across all shared libraries. */
#ifndef MULTIPLE_SYMBOL_SPACES
===================================================================
@@ -464,13 +464,6 @@ extern GTY(()) int darwin_ms_struct;
links to, so there's no need for weak-ness for that. */
#define GTHREAD_USE_WEAK 0
-/* The Darwin linker imposes two limitations on common symbols: they
- can't have hidden visibility, and they can't appear in dylibs. As
- a consequence, we should never use common symbols to represent
- vague linkage. */
-#undef USE_COMMON_FOR_ONE_ONLY
-#define USE_COMMON_FOR_ONE_ONLY 0
-
/* The Darwin linker doesn't want coalesced symbols to appear in
a static archive's table of contents. */
#undef TARGET_WEAK_NOT_IN_ARCHIVE_TOC