Disabled external gits

cs440-acg/ext/tbb/examples/common/examples-common.inc

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+# Copyright (c) 2005-2020 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# detect if a compiler can support C++11
+# If CXX0XFLAGS already set, do not change it
+ifneq (,$(findstring icc, $(CXX))$(findstring icpc, $(CXX))$(findstring clang++, $(CXX)))
+    # every supported icc or clang is OK
+    CXX0XFLAGS ?= -std=c++11
+else
+    ifneq (,$(findstring g++, $(CXX))$(findstring gcc, $(CXX)))
+        ifneq (, $(strip $(shell $(CXX) -v 2>&1 | grep "clang-")))
+            # This is clang actually,
+            # every supported clang is OK
+            CXX0XFLAGS ?= -std=c++11
+        else
+            # support of lambda started GCC 4.5
+            ifneq (, $(strip $(shell g++ -dumpfullversion -dumpversion | egrep "^(4\.[5-9]|[5-9]|1[0-9])")))
+               CXX0XFLAGS ?= -std=c++11
+            endif
+        endif
+    endif
+endif
+