diff --git a/config/ChangeLog b/config/ChangeLog
index 7db0c6b04c3..c74839ac3c6 100644
--- a/config/ChangeLog
+++ b/config/ChangeLog
@@ -1,3 +1,7 @@
+2012-10-15  Pavel Chupin  <pavel.v.chupin@intel.com>
+
+	* gthr.m4: New. Define GCC_AC_THREAD_HEADER.
+
 2012-09-19  Steve Ellcey  <sellcey@mips.com>
 
 	* mt-sde: Change -mcode-xonly to -mcode-readable=pcrel.
diff --git a/config/gthr.m4 b/config/gthr.m4
new file mode 100644
index 00000000000..7b29f1f3327
--- /dev/null
+++ b/config/gthr.m4
@@ -0,0 +1,27 @@
+dnl Copyright (C) 2012 Free Software Foundation, Inc.
+dnl This file is free software, distributed under the terms of the GNU
+dnl General Public License.  As a special exception to the GNU General
+dnl Public License, this file may be distributed as part of a program
+dnl that contains a configuration script generated by Autoconf, under
+dnl the same distribution terms as the rest of that program.
+
+dnl Define header location by thread model
+
+dnl usage: GCC_AC_THREAD_HEADER([thread_model])
+AC_DEFUN([GCC_AC_THREAD_HEADER],
+[
+case $1 in
+    aix)	thread_header=config/rs6000/gthr-aix.h ;;
+    dce)	thread_header=config/pa/gthr-dce.h ;;
+    lynx)	thread_header=config/gthr-lynx.h ;;
+    mipssde)	thread_header=config/mips/gthr-mipssde.h ;;
+    posix)	thread_header=gthr-posix.h ;;
+    rtems)	thread_header=config/gthr-rtems.h ;;
+    single)	thread_header=gthr-single.h ;;
+    tpf)	thread_header=config/s390/gthr-tpf.h ;;
+    vxworks)	thread_header=config/gthr-vxworks.h ;;
+    win32)	thread_header=config/i386/gthr-win32.h ;;
+esac
+AC_SUBST(thread_header)
+])
+
diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index b6c3c8e5bc8..29582666c6a 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,8 @@
+2012-10-15  Pavel Chupin  <pavel.v.chupin@intel.com>
+
+	* configure: Regenerate.
+	* configure.ac: Replace code with GCC_AC_THREAD_HEADER use.
+
 2012-10-10  Uros Bizjak  <ubizjak@gmail.com>
 
 	* config/i386/sfp-exceptions.c (__sfp_handle_exceptions): Emit SSE
diff --git a/libgcc/configure b/libgcc/configure
index a226f811659..ed6eabf2a5f 100644
--- a/libgcc/configure
+++ b/libgcc/configure
@@ -558,6 +558,7 @@ LIBOBJS
 asm_hidden_op
 extra_parts
 cpu_type
+thread_header
 tm_defines
 tm_file
 tmake_file
@@ -4503,6 +4504,7 @@ tm_file="${tm_file_}"
 
 
 # Map from thread model to thread header.
+
 case $target_thread_file in
     aix)	thread_header=config/rs6000/gthr-aix.h ;;
     dce)	thread_header=config/pa/gthr-dce.h ;;
@@ -4516,6 +4518,8 @@ case $target_thread_file in
     win32)	thread_header=config/i386/gthr-win32.h ;;
 esac
 
+
+
 # Substitute configuration variables
 
 
diff --git a/libgcc/configure.ac b/libgcc/configure.ac
index 24b15f0b178..8b7aba5823b 100644
--- a/libgcc/configure.ac
+++ b/libgcc/configure.ac
@@ -9,6 +9,7 @@ sinclude(../config/override.m4)
 sinclude(../config/picflag.m4)
 sinclude(../config/dfp.m4)
 sinclude(../config/unwind_ipinfo.m4)
+sinclude(../config/gthr.m4)
 
 AC_PREREQ(2.64)
 AC_INIT([GNU C Runtime Library], 1.0,,[libgcc])
@@ -376,18 +377,7 @@ AC_SUBST(tm_file)
 AC_SUBST(tm_defines)
 
 # Map from thread model to thread header.
-case $target_thread_file in
-    aix)	thread_header=config/rs6000/gthr-aix.h ;;
-    dce)	thread_header=config/pa/gthr-dce.h ;;
-    lynx)	thread_header=config/gthr-lynx.h ;;
-    mipssde)	thread_header=config/mips/gthr-mipssde.h ;;
-    posix)	thread_header=gthr-posix.h ;;
-    rtems)	thread_header=config/gthr-rtems.h ;;
-    single)	thread_header=gthr-single.h ;;
-    tpf)	thread_header=config/s390/gthr-tpf.h ;;
-    vxworks)	thread_header=config/gthr-vxworks.h ;;
-    win32)	thread_header=config/i386/gthr-win32.h ;;
-esac
+GCC_AC_THREAD_HEADER([$target_thread_file])
 
 # Substitute configuration variables
 AC_SUBST(cpu_type)
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index e6c16dbc930..5b42e2ca826 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,19 @@
+2012-10-15  Pavel Chupin  <pavel.v.chupin@intel.com>
+
+	* Makefile.in: Regenerate.
+	* acinclude.m4: Replace code with GCC_AC_THREAD_HEADER use.
+	* configure: Regenerate.
+	* doc/Makefile.in: Regenerate.
+	* include/Makefile.am: Regenerate.
+	* include/Makefile.in: Rename variable.
+	* libsupc++/Makefile.in: Regenerate.
+	* po/Makefile.in: Regenerate.
+	* python/Makefile.in: Regenerate.
+	* src/Makefile.in: Regenerate.
+	* src/c++11/Makefile.in: Regenerate.
+	* src/c++98/Makefile.in: Regenerate.
+	* testsuite/Makefile.in: Regenerate.
+
 2012-10-14  Jason Merrill  <jason@redhat.com>
 
 	PR target/54908
diff --git a/libstdc++-v3/Makefile.in b/libstdc++-v3/Makefile.in
index 34d0e02ede5..ab7caafed95 100644
--- a/libstdc++-v3/Makefile.in
+++ b/libstdc++-v3/Makefile.in
@@ -62,7 +62,8 @@ am__aclocal_m4_deps = $(top_srcdir)/../config/acx.m4 \
 	$(top_srcdir)/../lt~obsolete.m4 $(top_srcdir)/crossconfig.m4 \
 	$(top_srcdir)/linkage.m4 $(top_srcdir)/acinclude.m4 \
 	$(top_srcdir)/../config/gc++filt.m4 \
-	$(top_srcdir)/../config/tls.m4 $(top_srcdir)/configure.ac
+	$(top_srcdir)/../config/tls.m4 $(top_srcdir)/../config/gthr.m4 \
+	$(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
 am__CONFIG_DISTCLEAN_FILES = config.status config.cache config.log \
@@ -281,6 +282,7 @@ target_alias = @target_alias@
 target_cpu = @target_cpu@
 target_os = @target_os@
 target_vendor = @target_vendor@
+thread_header = @thread_header@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4
index f8765971bd0..10dac63dcf0 100644
--- a/libstdc++-v3/acinclude.m4
+++ b/libstdc++-v3/acinclude.m4
@@ -3305,10 +3305,14 @@ dnl having to write complex code (the sed commands to clean the macro
 dnl namespace are complex and fragile enough as it is).  We must also
 dnl add a relative path so that -I- is supported properly.
 dnl
+dnl Substs:
+dnl  thread_header
+dnl
 AC_DEFUN([GLIBCXX_ENABLE_THREADS], [
   AC_MSG_CHECKING([for thread model used by GCC])
   target_thread_file=`$CXX -v 2>&1 | sed -n 's/^Thread model: //p'`
   AC_MSG_RESULT([$target_thread_file])
+  GCC_AC_THREAD_HEADER([$target_thread_file])
 ])
 
 
@@ -3615,3 +3619,4 @@ AC_DEFUN([GLIBCXX_ENABLE_WERROR], [
 # Macros from the top-level gcc directory.
 m4_include([../config/gc++filt.m4])
 m4_include([../config/tls.m4])
+m4_include([../config/gthr.m4])
diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
index 09a06c1f2a9..0c939ed90b8 100755
--- a/libstdc++-v3/configure
+++ b/libstdc++-v3/configure
@@ -708,6 +708,7 @@ BASIC_FILE_H
 CSTDIO_H
 SECTION_FLAGS
 WERROR
+thread_header
 glibcxx_PCHFLAGS
 GLIBCXX_BUILD_PCH_FALSE
 GLIBCXX_BUILD_PCH_TRUE
@@ -11512,7 +11513,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11515 "configure"
+#line 11516 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -11618,7 +11619,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 11621 "configure"
+#line 11622 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -15032,7 +15033,7 @@ fi
     #
     # Fake what AC_TRY_COMPILE does.  XXX Look at redoing this new-style.
     cat > conftest.$ac_ext << EOF
-#line 15035 "configure"
+#line 15036 "configure"
 struct S { ~S(); };
 void bar();
 void foo()
@@ -15160,6 +15161,21 @@ $as_echo_n "checking for thread model used by GCC... " >&6; }
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: $target_thread_file" >&5
 $as_echo "$target_thread_file" >&6; }
 
+case $target_thread_file in
+    aix)	thread_header=config/rs6000/gthr-aix.h ;;
+    dce)	thread_header=config/pa/gthr-dce.h ;;
+    lynx)	thread_header=config/gthr-lynx.h ;;
+    mipssde)	thread_header=config/mips/gthr-mipssde.h ;;
+    posix)	thread_header=gthr-posix.h ;;
+    rtems)	thread_header=config/gthr-rtems.h ;;
+    single)	thread_header=gthr-single.h ;;
+    tpf)	thread_header=config/s390/gthr-tpf.h ;;
+    vxworks)	thread_header=config/gthr-vxworks.h ;;
+    win32)	thread_header=config/i386/gthr-win32.h ;;
+esac
+
+
+
 
 
   ac_ext=cpp
@@ -15367,7 +15383,7 @@ $as_echo "$glibcxx_cv_atomic_long_long" >&6; }
   # Fake what AC_TRY_COMPILE does.
 
     cat > conftest.$ac_ext << EOF
-#line 15370 "configure"
+#line 15386 "configure"
 int main()
 {
   typedef bool atomic_type;
@@ -15402,7 +15418,7 @@ $as_echo "$glibcxx_cv_atomic_bool" >&6; }
     rm -f conftest*
 
     cat > conftest.$ac_ext << EOF
-#line 15405 "configure"
+#line 15421 "configure"
 int main()
 {
   typedef short atomic_type;
@@ -15437,7 +15453,7 @@ $as_echo "$glibcxx_cv_atomic_short" >&6; }
     rm -f conftest*
 
     cat > conftest.$ac_ext << EOF
-#line 15440 "configure"
+#line 15456 "configure"
 int main()
 {
   // NB: _Atomic_word not necessarily int.
@@ -15473,7 +15489,7 @@ $as_echo "$glibcxx_cv_atomic_int" >&6; }
     rm -f conftest*
 
     cat > conftest.$ac_ext << EOF
-#line 15476 "configure"
+#line 15492 "configure"
 int main()
 {
   typedef long long atomic_type;
@@ -15552,7 +15568,7 @@ $as_echo "$as_me: WARNING: Performance of certain classes will degrade as a resu
   # unnecessary for this test.
 
     cat > conftest.$ac_ext << EOF
-#line 15555 "configure"
+#line 15571 "configure"
 int main()
 {
   _Decimal32 d1;
@@ -15594,7 +15610,7 @@ ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
   # unnecessary for this test.
 
     cat > conftest.$ac_ext << EOF
-#line 15597 "configure"
+#line 15613 "configure"
 template<typename T1, typename T2>
   struct same
   { typedef T2 type; };
@@ -15628,7 +15644,7 @@ $as_echo "$enable_int128" >&6; }
     rm -f conftest*
 
     cat > conftest.$ac_ext << EOF
-#line 15631 "configure"
+#line 15647 "configure"
 template<typename T1, typename T2>
   struct same
   { typedef T2 type; };
diff --git a/libstdc++-v3/doc/Makefile.in b/libstdc++-v3/doc/Makefile.in
index 240a68c8fa0..3c1a0d5d1ac 100644
--- a/libstdc++-v3/doc/Makefile.in
+++ b/libstdc++-v3/doc/Makefile.in
@@ -57,7 +57,8 @@ am__aclocal_m4_deps = $(top_srcdir)/../config/acx.m4 \
 	$(top_srcdir)/../lt~obsolete.m4 $(top_srcdir)/crossconfig.m4 \
 	$(top_srcdir)/linkage.m4 $(top_srcdir)/acinclude.m4 \
 	$(top_srcdir)/../config/gc++filt.m4 \
-	$(top_srcdir)/../config/tls.m4 $(top_srcdir)/configure.ac
+	$(top_srcdir)/../config/tls.m4 $(top_srcdir)/../config/gthr.m4 \
+	$(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
 CONFIG_HEADER = $(top_builddir)/config.h
@@ -263,6 +264,7 @@ target_alias = @target_alias@
 target_cpu = @target_cpu@
 target_os = @target_os@
 target_vendor = @target_vendor@
+thread_header = @thread_header@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
diff --git a/libstdc++-v3/include/Makefile.am b/libstdc++-v3/include/Makefile.am
index 09925d583c9..c2487d3c4ae 100644
--- a/libstdc++-v3/include/Makefile.am
+++ b/libstdc++-v3/include/Makefile.am
@@ -1148,7 +1148,7 @@ ${host_builddir}/gthr-posix.h: ${toplevel_srcdir}/libgcc/gthr-posix.h \
 	    -e 's/\(${uppercase}*USE_WEAK\)/_GLIBCXX_\1/g' \
 	    < $< > $@
 
-${host_builddir}/gthr-default.h: ${toplevel_builddir}/libgcc/gthr-default.h \
+${host_builddir}/gthr-default.h: ${toplevel_srcdir}/libgcc/${thread_header} \
 				   stamp-${host_alias}
 	sed -e 's/\(UNUSED\)/_GLIBCXX_\1/g' \
 	    -e 's/\(GCC${uppercase}*_H\)/_GLIBCXX_\1/g' \
diff --git a/libstdc++-v3/include/Makefile.in b/libstdc++-v3/include/Makefile.in
index a2536900d2e..666ed19ee8c 100644
--- a/libstdc++-v3/include/Makefile.in
+++ b/libstdc++-v3/include/Makefile.in
@@ -57,7 +57,8 @@ am__aclocal_m4_deps = $(top_srcdir)/../config/acx.m4 \
 	$(top_srcdir)/../lt~obsolete.m4 $(top_srcdir)/crossconfig.m4 \
 	$(top_srcdir)/linkage.m4 $(top_srcdir)/acinclude.m4 \
 	$(top_srcdir)/../config/gc++filt.m4 \
-	$(top_srcdir)/../config/tls.m4 $(top_srcdir)/configure.ac
+	$(top_srcdir)/../config/tls.m4 $(top_srcdir)/../config/gthr.m4 \
+	$(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
 CONFIG_HEADER = $(top_builddir)/config.h
@@ -253,6 +254,7 @@ target_alias = @target_alias@
 target_cpu = @target_cpu@
 target_os = @target_os@
 target_vendor = @target_vendor@
+thread_header = @thread_header@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
@@ -1545,7 +1547,7 @@ ${host_builddir}/gthr-posix.h: ${toplevel_srcdir}/libgcc/gthr-posix.h \
 	    -e 's/\(${uppercase}*USE_WEAK\)/_GLIBCXX_\1/g' \
 	    < $< > $@
 
-${host_builddir}/gthr-default.h: ${toplevel_builddir}/libgcc/gthr-default.h \
+${host_builddir}/gthr-default.h: ${toplevel_srcdir}/libgcc/${thread_header} \
 				   stamp-${host_alias}
 	sed -e 's/\(UNUSED\)/_GLIBCXX_\1/g' \
 	    -e 's/\(GCC${uppercase}*_H\)/_GLIBCXX_\1/g' \
diff --git a/libstdc++-v3/libsupc++/Makefile.in b/libstdc++-v3/libsupc++/Makefile.in
index e745179cd31..8bf86f35af6 100644
--- a/libstdc++-v3/libsupc++/Makefile.in
+++ b/libstdc++-v3/libsupc++/Makefile.in
@@ -59,7 +59,8 @@ am__aclocal_m4_deps = $(top_srcdir)/../config/acx.m4 \
 	$(top_srcdir)/../lt~obsolete.m4 $(top_srcdir)/crossconfig.m4 \
 	$(top_srcdir)/linkage.m4 $(top_srcdir)/acinclude.m4 \
 	$(top_srcdir)/../config/gc++filt.m4 \
-	$(top_srcdir)/../config/tls.m4 $(top_srcdir)/configure.ac
+	$(top_srcdir)/../config/tls.m4 $(top_srcdir)/../config/gthr.m4 \
+	$(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
 CONFIG_HEADER = $(top_builddir)/config.h
@@ -90,10 +91,10 @@ am__installdirs = "$(DESTDIR)$(toolexeclibdir)" "$(DESTDIR)$(bitsdir)" \
 	"$(DESTDIR)$(stddir)"
 LTLIBRARIES = $(noinst_LTLIBRARIES) $(toolexeclib_LTLIBRARIES)
 libsupc___la_LIBADD =
-am__objects_1 = array_type_info.lo atexit_arm.lo atexit_thread.lo bad_alloc.lo \
-	bad_cast.lo bad_typeid.lo class_type_info.lo del_op.lo \
-	del_opnt.lo del_opv.lo del_opvnt.lo dyncast.lo eh_alloc.lo \
-	eh_arm.lo eh_aux_runtime.lo eh_call.lo eh_catch.lo \
+am__objects_1 = array_type_info.lo atexit_arm.lo atexit_thread.lo \
+	bad_alloc.lo bad_cast.lo bad_typeid.lo class_type_info.lo \
+	del_op.lo del_opnt.lo del_opv.lo del_opvnt.lo dyncast.lo \
+	eh_alloc.lo eh_arm.lo eh_aux_runtime.lo eh_call.lo eh_catch.lo \
 	eh_exception.lo eh_globals.lo eh_personality.lo eh_ptr.lo \
 	eh_term_handler.lo eh_terminate.lo eh_tm.lo eh_throw.lo \
 	eh_type.lo eh_unex_handler.lo enum_type_info.lo \
@@ -313,6 +314,7 @@ target_alias = @target_alias@
 target_cpu = @target_cpu@
 target_os = @target_os@
 target_vendor = @target_vendor@
+thread_header = @thread_header@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
diff --git a/libstdc++-v3/po/Makefile.in b/libstdc++-v3/po/Makefile.in
index b6e9def9b3f..bb0f5908436 100644
--- a/libstdc++-v3/po/Makefile.in
+++ b/libstdc++-v3/po/Makefile.in
@@ -57,7 +57,8 @@ am__aclocal_m4_deps = $(top_srcdir)/../config/acx.m4 \
 	$(top_srcdir)/../lt~obsolete.m4 $(top_srcdir)/crossconfig.m4 \
 	$(top_srcdir)/linkage.m4 $(top_srcdir)/acinclude.m4 \
 	$(top_srcdir)/../config/gc++filt.m4 \
-	$(top_srcdir)/../config/tls.m4 $(top_srcdir)/configure.ac
+	$(top_srcdir)/../config/tls.m4 $(top_srcdir)/../config/gthr.m4 \
+	$(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
 CONFIG_HEADER = $(top_builddir)/config.h
@@ -253,6 +254,7 @@ target_alias = @target_alias@
 target_cpu = @target_cpu@
 target_os = @target_os@
 target_vendor = @target_vendor@
+thread_header = @thread_header@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
diff --git a/libstdc++-v3/python/Makefile.in b/libstdc++-v3/python/Makefile.in
index d0fd51d897b..49f71a1175e 100644
--- a/libstdc++-v3/python/Makefile.in
+++ b/libstdc++-v3/python/Makefile.in
@@ -58,7 +58,8 @@ am__aclocal_m4_deps = $(top_srcdir)/../config/acx.m4 \
 	$(top_srcdir)/../lt~obsolete.m4 $(top_srcdir)/crossconfig.m4 \
 	$(top_srcdir)/linkage.m4 $(top_srcdir)/acinclude.m4 \
 	$(top_srcdir)/../config/gc++filt.m4 \
-	$(top_srcdir)/../config/tls.m4 $(top_srcdir)/configure.ac
+	$(top_srcdir)/../config/tls.m4 $(top_srcdir)/../config/gthr.m4 \
+	$(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
 CONFIG_HEADER = $(top_builddir)/config.h
@@ -277,6 +278,7 @@ target_alias = @target_alias@
 target_cpu = @target_cpu@
 target_os = @target_os@
 target_vendor = @target_vendor@
+thread_header = @thread_header@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
diff --git a/libstdc++-v3/src/Makefile.in b/libstdc++-v3/src/Makefile.in
index 56eb09afc22..f9ff31943e9 100644
--- a/libstdc++-v3/src/Makefile.in
+++ b/libstdc++-v3/src/Makefile.in
@@ -58,7 +58,8 @@ am__aclocal_m4_deps = $(top_srcdir)/../config/acx.m4 \
 	$(top_srcdir)/../lt~obsolete.m4 $(top_srcdir)/crossconfig.m4 \
 	$(top_srcdir)/linkage.m4 $(top_srcdir)/acinclude.m4 \
 	$(top_srcdir)/../config/gc++filt.m4 \
-	$(top_srcdir)/../config/tls.m4 $(top_srcdir)/configure.ac
+	$(top_srcdir)/../config/tls.m4 $(top_srcdir)/../config/gthr.m4 \
+	$(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
 CONFIG_HEADER = $(top_builddir)/config.h
@@ -303,6 +304,7 @@ target_alias = @target_alias@
 target_cpu = @target_cpu@
 target_os = @target_os@
 target_vendor = @target_vendor@
+thread_header = @thread_header@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
diff --git a/libstdc++-v3/src/c++11/Makefile.in b/libstdc++-v3/src/c++11/Makefile.in
index 22a8c531f25..793bbae40ea 100644
--- a/libstdc++-v3/src/c++11/Makefile.in
+++ b/libstdc++-v3/src/c++11/Makefile.in
@@ -58,7 +58,8 @@ am__aclocal_m4_deps = $(top_srcdir)/../config/acx.m4 \
 	$(top_srcdir)/../lt~obsolete.m4 $(top_srcdir)/crossconfig.m4 \
 	$(top_srcdir)/linkage.m4 $(top_srcdir)/acinclude.m4 \
 	$(top_srcdir)/../config/gc++filt.m4 \
-	$(top_srcdir)/../config/tls.m4 $(top_srcdir)/configure.ac
+	$(top_srcdir)/../config/tls.m4 $(top_srcdir)/../config/gthr.m4 \
+	$(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
 CONFIG_HEADER = $(top_builddir)/config.h
@@ -270,6 +271,7 @@ target_alias = @target_alias@
 target_cpu = @target_cpu@
 target_os = @target_os@
 target_vendor = @target_vendor@
+thread_header = @thread_header@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
diff --git a/libstdc++-v3/src/c++98/Makefile.in b/libstdc++-v3/src/c++98/Makefile.in
index 26608c5634e..d154b983922 100644
--- a/libstdc++-v3/src/c++98/Makefile.in
+++ b/libstdc++-v3/src/c++98/Makefile.in
@@ -58,7 +58,8 @@ am__aclocal_m4_deps = $(top_srcdir)/../config/acx.m4 \
 	$(top_srcdir)/../lt~obsolete.m4 $(top_srcdir)/crossconfig.m4 \
 	$(top_srcdir)/linkage.m4 $(top_srcdir)/acinclude.m4 \
 	$(top_srcdir)/../config/gc++filt.m4 \
-	$(top_srcdir)/../config/tls.m4 $(top_srcdir)/configure.ac
+	$(top_srcdir)/../config/tls.m4 $(top_srcdir)/../config/gthr.m4 \
+	$(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
 CONFIG_HEADER = $(top_builddir)/config.h
@@ -286,6 +287,7 @@ target_alias = @target_alias@
 target_cpu = @target_cpu@
 target_os = @target_os@
 target_vendor = @target_vendor@
+thread_header = @thread_header@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
diff --git a/libstdc++-v3/testsuite/Makefile.in b/libstdc++-v3/testsuite/Makefile.in
index d286ce2a5c7..96b3f9f4b1a 100644
--- a/libstdc++-v3/testsuite/Makefile.in
+++ b/libstdc++-v3/testsuite/Makefile.in
@@ -57,7 +57,8 @@ am__aclocal_m4_deps = $(top_srcdir)/../config/acx.m4 \
 	$(top_srcdir)/../lt~obsolete.m4 $(top_srcdir)/crossconfig.m4 \
 	$(top_srcdir)/linkage.m4 $(top_srcdir)/acinclude.m4 \
 	$(top_srcdir)/../config/gc++filt.m4 \
-	$(top_srcdir)/../config/tls.m4 $(top_srcdir)/configure.ac
+	$(top_srcdir)/../config/tls.m4 $(top_srcdir)/../config/gthr.m4 \
+	$(top_srcdir)/configure.ac
 am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 	$(ACLOCAL_M4)
 CONFIG_HEADER = $(top_builddir)/config.h
@@ -253,6 +254,7 @@ target_alias = @target_alias@
 target_cpu = @target_cpu@
 target_os = @target_os@
 target_vendor = @target_vendor@
+thread_header = @thread_header@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@