_REENTRANT not defined when -pthread is used on alpha-linux

_REENTRANT not defined when -pthread is used on alpha-linux

[Jakub Bogusz]

I noticed that on alpha-linux _REENTRANT is not automatically defined
when -pthread command line option is used.
Is it a bug, or desired behaviour?

_REENTRANT is defined on most other archs (at least
{i386,amd64,ppc,sparc}-linux) through *cpp in specs file.

On alpha-linux specs contains:

| *cpp:
| %(cpp_subtarget)
| 
| *cpp_subtarget:
| -D__ELF__

while for example on i386-linux it contains:

| *cpp:
| %{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}

and alpha-osf seems to have -D_REENTRANT - from gcc/config/alpha/osf.h:

| #undef CPP_SUBTARGET_SPEC
| #define CPP_SUBTARGET_SPEC \
| "%{pthread|threads:-D_REENTRANT} %{threads:-D_PTHREAD_USE_D4}"


I noticed this in gcc 3.3.3, but browsing gcc/config/alpha directory
through cvsweb I haven't noticed any changes in this area.


-- 
Jakub Bogusz    http://cyber.cs.net.pl/~qboosh/
PLD Team        http://www.pld-linux.org/

Re: _REENTRANT not defined when -pthread is used on alpha-linux

[Jim Wilson]

Jakub Bogusz wrote:
> I noticed that on alpha-linux _REENTRANT is not automatically defined
> when -pthread command line option is used.
> Is it a bug, or desired behaviour?

This is probably a bug.  I suggest filing a bug report into our bugzilla 
bug database.  We do not track bug reports submitted via email, so it is 
more likely to get fixed if it is in the bug database.
-- 
Jim Wilson, GNU Tools Support, http://www.SpecifixInc.com