Can't compile 970929

[Bob Glickstein <bobg at zanshin dot com>]

My platform is Linux 2.0.30, glibc 2.0.4, gcc 2.7.2.2.  While
compiling libio, I get this error:

/space/bobg/src/extern/egcs-970929/gcc/xgcc -B/space/bobg/src/extern/egcs-970929/gcc/ -c -O2 -g -fvtable-thunks -fno-implicit-templates -I. -I. -nostdinc++ -D_IO_MTSAFE_IO fstream.cc
In file included from bits/libc-lock.h:1,
                 from libioP.h:31,
                 from fstream.cc:32:
/usr/include/libc-lock.h:124: syntax error before `;'

The offending line in libc-lock.h is

  typedef pthread_key_t __libc_key_t;

At that point in the file, pthread_key_t is only defined if _LIBC is
defined, because of this at the beginning of libc-lock.h:

  #ifdef _LIBC
  #include <pthread.h>
  ...

and while compiling libio, _LIBC isn't defined.

Actually, this problem (or ones related to it) has kept me from
building the last three or four snapshots of egcs, but I didn't
mention it earlier because I thought I saw a discussion and resolution
of the problem go by on the mailing list.  But apparently the problem
still exists.

Cheers.