Use alternate thread library on Solaris 8 even without TLS

	* configure.ac (LIB_TLS_SPEC): Enforce use of alternate thread
	library on Solaris 8 even without TLS support.
	* configure: Regenerate.

From-SVN: r184467

gcc/ChangeLog

+2012-02-22  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
+
+	* configure.ac (LIB_TLS_SPEC): Enforce use of alternate thread
+	library on Solaris 8 even without TLS support.
+	* configure: Regenerate.
+
 2012-02-22  Richard Guenther  <rguenther@suse.de>
 
 	PR middle-end/52329
 	* gimple-fold.c (fold_stmt_1): Also canonicalize ADDR_EXPRs
 	for GIMPLE_DEBUG stmts.
- 
+
 2012-02-22  Martin Jambor  <mjambor@suse.cz>
 
 	PR middle-end/51782

gcc/configure

@@ -23774,6 +23774,13 @@ fi
     if test $set_have_as_tls = no; then
       LIBS=
     fi
+    # Even without TLS support on Solaris 8, explicitly link with libthread
+    # to guarantee that the alternate thread library is used.
+    case "$target" in
+      *-*-solaris2.8)
+	LIBS=-lthread
+	;;
+    esac
     # Always define LIB_TLS_SPEC, even without TLS support.
 
 cat >>confdefs.h <<_ACEOF

gcc/configure.ac

@@ -3264,6 +3264,13 @@ case "$target" in
     if test $set_have_as_tls = no; then
       LIBS=
     fi
+    # Even without TLS support on Solaris 8, explicitly link with libthread
+    # to guarantee that the alternate thread library is used.
+    case "$target" in
+      *-*-solaris2.8)
+	LIBS=-lthread
+	;;
+    esac
     # Always define LIB_TLS_SPEC, even without TLS support.
     AC_DEFINE_UNQUOTED(LIB_TLS_SPEC, "$LIBS",
         [Define to the library containing __tls_get_addr/___tls_get_addr.])