[Bug other/15000] Support setting the default symbol visibility for ELF

["zack at codesourcery dot com" <gcc-bugzilla@gcc.gnu.org>]

------- Additional Comments From zack at codesourcery dot com  2004-04-22 20:36 -------
Subject: Re:  Support setting the default symbol visibility
 for ELF

>> #pragma visibility hidden
>> void internal_function (...);
>> ...
>> #pragma visibility default
>
> There is only (valid) opposition because you can't form #pragma's in
> preprocessor magic. However I would have thought the same engine
> works behind #pragma as behind that pragma statement replacement (I
> forget the details) so it still kills both birds with one stone.

_Pragma("string constant") where the contents of the string constant
are taken as the tokens after #pragma.

Note that pragmas which GCC makes up, i.e. ones that are not
implemented for compatibility with some other compiler, should have
the identifier GCC as the first token after #pragma.  In this case,

#pragma GCC visibility hidden

for example.

zw


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15000