Re: Feature Branch Solaris Build Broken - lib/glob.c errors

[Derek Price]

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Conrad T. Pino wrote:

>Defining macro "__PRAGMA_REDEFINE_EXTNAME" on the command line stops all
errors
>and warnings in "lib/glob.c" compile.


(For those new to this thread, this is because the Solaris headers
#define stat stat64 when the __PRAGMA_REDEFINE_EXTNAME macro is not
defined).

Why isn't gcc defining this value?  According to what I could find on
the web, the compiler should define "__PRAGMA_REDEFINE_EXTNAME" if it
supports the redefine_extname pragma, which this compiler apparently does.

    <http://docs.sun.com/app/docs/doc/816-5175/6mbba7f3u?a=view>.

Why haven't we seen this error before?  Is this a common problem on
Solaris 10?  Is this problem true of any gcc on any Solaris?  Is it
specific to your setup?  What happens if you use a native Soalris compiler?

A quick google search on "__PRAGMA_REDEFINE_EXTNAME Solaris 10 gcc"
brings up a few discussions of this.  The gist of the first few I read
is that some people ocassionally end up with broken GCCs which do not
properly define this macro, but most GCCs should.  The reason for the
difference was not apparent in the first several pages I scanned.

Digging a little deeper, this is even documented in the Linux info
manual for gcc:

> Solaris Pragmas
> ---------------
>
> For compatibility with the SunPRO compiler, the following pragma is
> supported.
>
> `redefine_extname OLDNAME NEWNAME'
> This pragma gives the C function OLDNAME the assembler label
> NEWNAME. The pragma must appear before the function declaration.
> This pragma is equivalent to the asm labels extension (*note Asm
> Labels::). The preprocessor defines `__PRAGMA_REDEFINE_EXTNAME'
> if the pragma is available.


Perhaps the problem is in your GCC installation or usage?

Regards,

Derek
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