diff --git a/libgomp/configure.tgt b/libgomp/configure.tgt
index b88bf72fe..b608c55f0 100644
--- a/libgomp/configure.tgt
+++ b/libgomp/configure.tgt
@@ -10,23 +10,6 @@
 #  XCFLAGS		Add extra compile flags to use.
 #  XLDFLAGS		Add extra link flags to use.
 
-# Optimize TLS usage by avoiding the overhead of dynamic allocation.
-if test $gcc_cv_have_tls = yes ; then
-  case "${target}" in
-
-    *-*-k*bsd*-gnu*)
-	;;
-
-    *-*-linux* | *-*-gnu*)
-	XCFLAGS="${XCFLAGS} -ftls-model=initial-exec -DUSING_INITIAL_EXEC_TLS"
-	;;
-
-    *-*-rtems*)
-	XCFLAGS="${XCFLAGS} -ftls-model=local-exec"
-	;;
-  esac
-fi
-
 # Since we require POSIX threads, assume a POSIX system by default.
 config_path="posix"
 
diff --git a/libitm/configure.tgt b/libitm/configure.tgt
index 4c0b60203..03b1a63b5 100644
--- a/libitm/configure.tgt
+++ b/libitm/configure.tgt
@@ -27,22 +27,6 @@
 #  XCFLAGS		Add extra compile flags to use.
 #  XLDFLAGS		Add extra link flags to use.
 
-# Optimize TLS usage by avoiding the overhead of dynamic allocation.
-if test "$gcc_cv_have_tls" = yes ; then
-  case "${target}" in
-
-    # For x86, we use slots in the TCB head for most of our TLS.
-    # The setup of those slots in beginTransaction can afford to
-    # use the global-dynamic model.
-    i[456]86-*-linux* | x86_64-*-linux*)
-	;;
-    
-    *-*-linux*)
-	XCFLAGS="${XCFLAGS} -ftls-model=initial-exec"
-	;;
-  esac
-fi
-
 # Map the target cpu to an ARCH sub-directory.  At the same time,
 # work out any special compilation flags as necessary.
 case "${target_cpu}" in