From 597c25e65d1ba0f80796c91f8b1c6318fd353caa Mon Sep 17 00:00:00 2001
From: Daniel Jacobowitz <dan@codesourcery.com>
Date: Mon, 13 Nov 2006 20:35:20 +0000
Subject: * tls.m4 (GCC_CHECK_TLS): Fall back to a link test.

From-SVN: r118777
---
 libstdc++-v3/configure | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

(limited to 'libstdc++-v3/configure')

diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
index ae9283d..8454849 100755
--- a/libstdc++-v3/configure
+++ b/libstdc++-v3/configure
@@ -31271,12 +31271,17 @@ if test "${have_tls+set}" = set; then
 else
 
     if test "$cross_compiling" = yes; then
-  cat >conftest.$ac_ext <<_ACEOF
-__thread int foo;
+  if test x$gcc_no_link = xyes; then
+  { { echo "$as_me:$LINENO: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&5
+echo "$as_me: error: Link tests are not allowed after GCC_NO_EXECUTABLES." >&2;}
+   { (exit 1); exit 1; }; }
+fi
+cat >conftest.$ac_ext <<_ACEOF
+__thread int a; int b; int main() { return a = b; }
 _ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
   ac_status=$?
   grep -v '^ *+' conftest.er1 >conftest.err
   rm -f conftest.er1
@@ -31290,7 +31295,7 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   ac_status=$?
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
+	 { ac_try='test -s conftest$ac_exeext'
   { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
@@ -31303,7 +31308,8 @@ sed 's/^/| /' conftest.$ac_ext >&5
 
 have_tls=no
 fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
 
 else
   cat >conftest.$ac_ext <<_ACEOF
-- 
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