On Mon, Mar 17, 2003 at 09:25:09AM -0500, Bob Hilliard wrote:
> Section 11.2 of Debian Policy says:
>
> You must specify the gcc option `-D_REENTRANT' when building a library
> (either static or shared) to make the library compatible with
> LinuxThreads.
>
> Is this obsolete? I can't find `-D_REENTRANT' in the gcc
> documentation.
That's because it has nothing in particular to do with gcc. It's in the
glibc documentation:
- Macro: _REENTRANT
- Macro: _THREAD_SAFE
If you define one of these macros, reentrant versions of several
functions get declared. Some of the functions are specified in
POSIX.1c but many others are only available on a few other systems
or are unique to GNU libc. The problem is the delay in the
standardization of the thread safe C library interface.
Unlike on some other systems, no special version of the C library
must be used for linking. There is only one version but while
compiling this it must have been specified to compile as thread
safe.
--
- mdz
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