diff --git a/contrib/toolchain/gcc/5x/libstdc++-v3/src/Makefile b/contrib/toolchain/gcc/5x/libstdc++-v3/src/Makefile
new file mode 100644
index 0000000000..5b87d93bc3
--- /dev/null
+++ b/contrib/toolchain/gcc/5x/libstdc++-v3/src/Makefile
@@ -0,0 +1,263 @@
+LIBRARY= libstdc++
+
+CC = kos32-gcc
+AR = kos32-ar
+LD = kos32-ld
+CPP= kos32-g++
+STRIP = kos32-strip
+
+INSTALLDIR:= /home/autobuild/tools/win32/mingw32/lib
+
+export SDK_DIR:= $(abspath ../../../../../sdk)
+
+CFLAGS = -U_Win32 -U_WIN32 -U__MINGW32__ -c -O2 -fno-ident -fomit-frame-pointer
+CFLAGS+= -nostdinc++ -fno-implicit-templates -Wall -Wextra -Wwrite-strings -Wcast-qual -Wabi
+CFLAGS+= -fdiagnostics-show-location=once -ffunction-sections -fdata-sections
+
+ARFLAGS= crs
+
+GLIBCXX_INCLUDE_DIR= ../include
+INCLUDES= -I../include/mingw32 -I../include -I../libsupc++ -I$(SDK_DIR)/sources/newlib/libc/include
+
+LIBS:=  -ldll -lc.dll
+
+GLIBCXX_ABI_FLAGS = -D_GLIBCXX_USE_CXX11_ABI=0
+PARALLEL_FLAGS = -D_GLIBCXX_PARALLEL
+
+DEFINES= -D_GLIBCXX_HAVE_TLS
+
+CXXCOMPILE= $(CPP) $(CFLAGS) $(INCLUDES) $(DEFINES)
+
+
+cxx98_sources = \
+	c++98/compatibility.cc \
+	c++98/compatibility-debug_list.cc	\
+	c++98/compatibility-debug_list-2.cc
+
+cxx11_sources = \
+	c++11/compatibility-c++0x.cc \
+	c++11/compatibility-atomic-c++0x.cc \
+	c++11/compatibility-thread-c++0x.cc \
+	c++11/compatibility-chrono.cc \
+	c++11/compatibility-condvar.cc
+
+compat_sources = $(cxx98_sources) $(cxx11_sources)
+
+cow_string_host_sources = \
+	c++98/collate_members_cow.cc \
+	c++98/messages_members_cow.cc \
+	c++98/monetary_members_cow.cc \
+	c++98/numeric_members_cow.cc
+
+
+# Source files linked in via configuration/make substitution for a
+# particular host.
+host_sources = \
+	$(cow_string_host_sources)		\
+	c++98/atomicity.cc 			\
+	c++98/codecvt_members.cc 		\
+	c++98/collate_members.cc 		\
+	c++98/messages_members.cc 		\
+	c++98/monetary_members.cc 		\
+	c++98/numeric_members.cc 		\
+	c++98/time_members.cc
+
+# Source files linked in via configuration/make substitution for a
+# particular host, but with ad hoc naming rules.
+host_sources_extra = \
+	c++98/basic_file.cc c++98/c++locale.cc \
+	${inst_sources} ${parallel_sources}
+
+cxx11_abi_sources = \
+	c++98/cow-istream-string.cc
+
+
+inst_sources = \
+	c++98/allocator-inst.cc \
+	c++98/concept-inst.cc \
+	c++98/ext-inst.cc \
+	c++98/misc-inst.cc \
+
+parallel_sources = c++98/parallel_settings.cc
+
+sources = \
+    c++98/bitmap_allocator.cc       \
+    c++98/pool_allocator.cc         \
+    c++98/mt_allocator.cc       \
+    c++98/codecvt.cc            \
+    c++98/complex_io.cc         \
+    c++98/globals_io.cc         \
+    c++98/hash_tr1.cc           \
+    c++98/hashtable_tr1.cc      \
+    c++98/ios_failure.cc        \
+    c++98/ios_init.cc           \
+    c++98/ios_locale.cc         \
+    c++98/list.cc           \
+    c++98/list-aux.cc           \
+    c++98/list-aux-2.cc         \
+    c++98/list_associated.cc        \
+    c++98/list_associated-2.cc      \
+    c++98/locale.cc             \
+    c++98/locale_init.cc        \
+    c++98/locale_facets.cc      \
+    c++98/localename.cc         \
+    c++98/math_stubs_float.cc       \
+    c++98/math_stubs_long_double.cc     \
+    c++98/stdexcept.cc          \
+    c++98/strstream.cc          \
+    c++98/tree.cc           \
+    c++98/istream.cc            \
+    c++98/istream-string.cc     \
+    c++98/streambuf.cc          \
+    c++98/valarray.cc           \
+	${cxx11_abi_sources} 			\
+	${host_sources} 			\
+	${host_sources_extra}
+
+
+host_sources_11 = \
+    c++11/ctype_configure_char.cc \
+    c++11/ctype_members.cc
+
+cxx11_abi_sources_11 = \
+    c++11/cow-locale_init.cc \
+    c++11/cow-shim_facets.cc \
+    c++11/cxx11-hash_tr1.cc \
+    c++11/cxx11-ios_failure.cc \
+    c++11/cxx11-shim_facets.cc \
+    c++11/cxx11-stdexcept.cc
+
+sources_11 = \
+    c++11/chrono.cc \
+    c++11/codecvt.cc \
+    c++11/condition_variable.cc \
+    c++11/cow-stdexcept.cc \
+    c++11/ctype.cc \
+    c++11/debug.cc \
+    c++11/functexcept.cc \
+    c++11/functional.cc \
+    c++11/futex.cc \
+    c++11/future.cc \
+    c++11/hash_c++0x.cc \
+    c++11/hashtable_c++0x.cc \
+    c++11/ios.cc \
+    c++11/limits.cc \
+    c++11/mutex.cc \
+    c++11/placeholders.cc \
+    c++11/random.cc \
+    c++11/regex.cc  \
+    c++11/shared_ptr.cc \
+    c++11/snprintf_lite.cc \
+    c++11/system_error.cc \
+    c++11/thread.cc \
+	${cxx11_abi_sources_11} \
+	${host_sources_11}
+
+
+extra_string_inst_sources = \
+    c++11/cow-fstream-inst.cc \
+    c++11/cow-sstream-inst.cc \
+    c++11/cow-string-inst.cc \
+    c++11/cow-wstring-inst.cc \
+    c++11/cxx11-locale-inst.cc \
+    c++11/cxx11-wlocale-inst.cc
+
+inst_sources_11 = \
+	$(extra_string_inst_sources) \
+    c++11/ext11-inst.cc \
+    c++11/fstream-inst.cc \
+    c++11/ios-inst.cc \
+    c++11/iostream-inst.cc \
+    c++11/istream-inst.cc \
+    c++11/locale-inst.cc \
+    c++11/ostream-inst.cc \
+    c++11/sstream-inst.cc \
+    c++11/streambuf-inst.cc \
+    c++11/string-inst.cc \
+    c++11/wlocale-inst.cc \
+    c++11/wstring-inst.cc
+
+sources_11+= $(inst_sources_11)
+
+OBJ98 =  $(patsubst %.cc, %.o, $(patsubst %.c, %.o, $(sources)))
+
+OBJ11 =  $(patsubst %.cc, %.o, $(patsubst %.c, %.o, $(sources_11)))
+
+com_obj =  $(patsubst %.cc, %.o, $(patsubst %.c, %.o, $(compat_sources)))
+
+# targets
+
+all:$(LIBRARY).a
+
+#$(LIBRARY).a: $(OBJ98) $(OBJ11) $(com_obj) Makefile
+
+$(LIBRARY).a: $(OBJ98) $(OBJ11) $(com_obj) Makefile
+	$(AR) $(ARFLAGS) $(LIBRARY).a $(OBJ98) $(OBJ11) $(com_obj)
+	mv -f $(LIBRARY).a $(INSTALLDIR)
+
+%.o : %.c Makefile
+	$(CC) $(CFLAGS) $(DEFINES) $(INCLUDES) -o $@ $<
+
+#src/%.o : src/%.cc Makefile
+#	$(CXXCOMPILE) -o $@ $<
+
+
+
+c++98/%.o : c++98/%.cc Makefile
+	$(CXXCOMPILE) -o $@ $<
+
+c++11/%.o : c++11/%.cc Makefile
+	$(CXXCOMPILE) -std=gnu++11 -o $@ $<
+
+c++98/collate_members_cow.o: c++98/collate_members_cow.cc
+	$(CXXCOMPILE) $(GLIBCXX_ABI_FLAGS) -fimplicit-templates -o $@ $<
+
+c++98/messages_members_cow.o: c++98/messages_members_cow.cc
+	$(CXXCOMPILE) $(GLIBCXX_ABI_FLAGS) -fimplicit-templates -o $@ $<
+
+c++98/monetary_members_cow.o: c++98/monetary_members_cow.cc
+	$(CXXCOMPILE) $(GLIBCXX_ABI_FLAGS) -fimplicit-templates -o $@ $<
+
+c++98/numeric_members_cow.o: c++98/numeric_members_cow.cc
+	$(CXXCOMPILE) $(GLIBCXX_ABI_FLAGS) -fimplicit-templates -o $@ $<
+
+c++98/locale_init.o: c++98/locale_init.cc
+	$(CXXCOMPILE) -std=gnu++11 -o $@ $<
+
+c++98/localename.o: c++98/localename.cc
+	$(CXXCOMPILE) -std=gnu++11 -o $@ $<
+
+c++98/strstream.o: c++98/strstream.cc Makefile
+	$(CXXCOMPILE) -I$(GLIBCXX_INCLUDE_DIR)/backward -Wno-deprecated -o $@ $<
+
+# Use special rules for the concept-checking instantiations so that all
+
+# the generated template functions are also instantiated.  Force the checks
+
+# to be on so that the instantiations are actually seen.
+
+c++98/concept-inst.o: c++98/concept-inst.cc
+	$(CXXCOMPILE) -D_GLIBCXX_CONCEPT_CHECKS -fimplicit-templates -o $@ $<
+
+c++98/parallel_settings.o: c++98/parallel_settings.cc
+	$(CXXCOMPILE) $(PARALLEL_FLAGS) -o $@ $<
+
+
+c++11/hashtable_c++0x.o: c++11/hashtable_c++0x.cc
+	$(CXXCOMPILE) -std=gnu++11 -fimplicit-templates -o $@ $<
+
+c++11/compatibility-c++0x.o: c++11/compatibility-c++0x.cc
+	$(CXXCOMPILE) -std=gnu++11 -o $@ $<
+
+c++11/compatibility-thread-c++0x.o: c++11/compatibility-thread-c++0x.cc
+	$(CXXCOMPILE) -std=gnu++11 -o $@ $<
+
+c++11/compatibility-chrono.o: c++11/compatibility-chrono.cc
+	$(CXXCOMPILE) -std=gnu++11 -o $@ $<
+
+c++11/compatibility-condvar.o: c++11/compatibility-condvar.cc
+	$(CXXCOMPILE) -std=gnu++11 -o $@ $<
+
+clean:
+	-rm -f *.o
+