TLS support on NetBSD

[Ludovic Courtès]

Hi Greg,

NetBSD builds have been failing since the introduction of TLS support
(http://autobuild.josefsson.org/guile/log-200910220603170256000.txt):

  gcc -I/usr/pkg/include -I/usr/y0/include -Wall -Wmissing-prototypes -Werror 
-fvisibility=hidden -I/usr/pkg/include -g -O2 -I/usr/pkg/include 
-I/usr/y0/include -o .libs/guile guile-guile.o  -L/usr/pkg/lib -L/usr/y0/lib 
./.libs/libguile.so /usr/pkg/lib/libintl.so -lc /usr/pkg/lib/libgmp.so 
/usr/pkg/lib/libgc.so -lpthread -lrt /usr/y0/lib/libunistring.so -lcrypt -lm 
/usr/pkg/lib/libltdl.so  -Wl,--rpath -Wl,/usr/local/lib -Wl,--rpath 
-Wl,/usr/pkg/lib -Wl,--rpath -Wl,/usr/y0/lib
  ./.libs/libguile.so: warning: warning: tmpnam() possibly used unsafely, use 
mkstemp() or mkdtemp()
  ./.libs/libguile.so: undefined reference to `__tls_get_addr'

This looks as though TLS was not actually implemented in NetBSD’s libc.
Do you have any info on this?

Besides, I was hoping that
http://git.savannah.gnu.org/cgit/guile.git/commit/?id=96e15df109ccfdcc2f6b2cffc0b64a083f000903
would fix NetBSD builds, but apparently that’s not enough.  Any
suggestion to fix it?

Thanks,
Ludo’.