Re: [Qemu-devel] env in TLS

[Johannes Schindelin]

Hi,

On Mon, 11 Oct 2004, Lennert Buytenhek wrote:

> Sure, but if you want to support all platforms, you still won't be
> able to use __thread unconditionally which was the original intent as
> I understood it.

What I meant:

in configure:

-- snip --
# check tls variable support
cat > $TMPC <<EOF
int __thread dummy;
EOF

can_use_tls="no"
if $cc -c -o $TMPO $TMPC 2> /dev/null ; then
   can_use_tls="yes"
fi

[...]

if test "$can_use_tls" = "no" ; then
  echo "NO_TLS=yes" >> $config_mak
fi

-- snap --

in Makefile:

-- snip --
ifeq ($(NO_TLS),yes)
CFLAGS+= -D__thread=
endif
-- snap --

Ciao,
Dscho