file-specific variable override so it compiles properly when using
--with-headers.
* NEWS: Added item for powerpc64-linux port.
* include/libc-symbols.h [HAVE_ASM_GLOBAL_DOT_NAME]
(C_SYMBOL_DOT_NAME): Insure that C_SYMBOL_DOT_NAME works for
various gcc versions. Dot names required for powerpc64.
[HAVE_ASM_GLOBAL_DOT_NAME] (_weak_extern): Add .weakext '.'ed symbol.
[HAVE_ASM_GLOBAL_DOT_NAME] (strong_alias): Add .global
C_SYMBOL_DOT_NAME(alias).
[HAVE_ASM_GLOBAL_DOT_NAME] (strong_data_alias): New macro. Same as
original strong_alias macro.
[HAVE_ASM_GLOBAL_DOT_NAME] (weak_alias): Add .weakext/.weak
C_SYMBOL_DOT_NAME(alias).
[HAVE_ASM_GLOBAL_DOT_NAME] (_symbol_version): Add .symver '.'ed name.
[HAVE_ASM_GLOBAL_DOT_NAME] (_default_symbol_version): Add .symver
'.'ed name.
Add comments on libc_hidden_data_def and libc_hidden_data_weak usage.
[HAVE_ASM_GLOBAL_DOT_NAME] (hidden_dot_def1): New macro. Generate
.global C_SYMBOL_DOT_NAME(alias). Otherwise an empty macro.
(hidden_def): Append hidden_dot_def1 macro to definition.
(hidden_ver): Append hidden_dot_def1 macro to definition.
(hidden_data_def): New macro. Same as original hidden_def macro.
(hidden_data_ver): New macro. Same as original hidden_ver macro.
[HAVE_ASM_GLOBAL_DOT_NAME] (hidden_dot_weak1): New macro. Generate
.weakext C_SYMBOL_DOT_NAME(alias). Otherwise an empty macro.
(hidden_weak): Append hidden_dot_weak1 macro to definition.
(hidden_data_weak): New macro. Same as original hidden_weak macro.
[HAVE_ASM_GLOBAL_DOT_NAME] (HIDDEN_JUMPTARGET): Define as .__GI_name.
Otherwise defined as __GI_name.
(libc_hidden_data_def): New macro. Use hidden_data_def.
(libc_hidden_data_weak): New macro. Use hidden_data_weak.
(libc_hidden_data_ver): New macro. Use hidden_data_ver.
(rtld_hidden_data_def): New macro. Use hidden_data_def.
(rtld_hidden_data_weak): New macro. Use hidden_data_weak.
(rtld_hidden_data_ver): New macro. Use hidden_data_ver.
(libm_hidden_data_def): New macro. Use hidden_data_def.
(libm_hidden_data_weak): New macro. Use hidden_data_weak.
(libm_hidden_data_ver): New macro. Use hidden_data_ver.
* inet/in6_addr.c: Replace libc_hidden_def with libc_hidden_data_def.