On Sun, Jun 24, 2012 at 3:42 PM, Steven Bosscher <stevenb....@gmail.com> wrote:
> Like the ones before: they are unused.
> Will commit as an obvious cleanup in a few days' time.
...and one more...
* system.h (USE_COMMON_FOR_ONE_ONLY): Poison.
* defaults.h (USE_COMMON_FOR_ONE_ONLY): Do not provide default.
* config/darwin.h (USE_COMMON_FOR_ONE_ONLY): Do not define.
Index: system.h
===================================================================
--- system.h (revision 188856)
+++ system.h (working copy)
@@ -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 \
Index: defaults.h
===================================================================
--- defaults.h (revision 188856)
+++ defaults.h (working copy)
@@ -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
Index: config/darwin.h
===================================================================
--- config/darwin.h (revision 188856)
+++ config/darwin.h (working copy)
@@ -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
