init-first.c change

[Jakub Jelinek]

Hi!

I have doubts about:

2002-10-24  Roland McGrath  <roland@redhat.com>

        * sysdeps/unix/sysv/linux/init-first.c (init): Protect _dl_starting_up
        access with [! SHARED].
        * sysdeps/unix/sysv/aix/init-first.c (init): Likewise.

change. It seems to me that ATM all normal dynamically linked programs
will suddenly have __libc_multiple_libcs set to 1 while they had 0 there
previously.  Shouldn't it actually be #ifdef SHARED?
Also:

   /* The next variable is only here to work around a bug in gcc <= 2.7.2.2.
      If the address would be taken inside the expression the optimizer
      would try to be too smart and throws it away.  Grrr.  */
   int *dummy_addr = &_dl_starting_up;

   __libc_multiple_libcs = dummy_addr && !_dl_starting_up;

could be replaced with

   __libc_multiple_libcs = &_dl_starting_up && !_dl_starting_up;

, because we don't support 2.7.2.2 any longer for glibc build.

Last, there is _dl_starting_up extern in elf/dl-init.c which could be
killed too.

	Jakub