CMake support

- initial cmake support
- downgrade cmake requirement to 2.8.12
- factorize cmake test flags / libs options
- refactor test / library under helpers functions, follow bazel's style
- Add fix for MSVC and Windows support ( thx @patrikfors )
- Switch to default "add_subdirectory()" usage mode
- add CMake/README.md for instructions
- add header-only cmake target generator
- map absl target to absl:: namespace

1 files changed, 30 insertions, 0 deletions

diff --git a/absl/CMakeLists.txt b/absl/CMakeLists.txt
new file mode 100644
index 00000000..689f64e2
--- /dev/null
+++ b/absl/CMakeLists.txt
@@ -0,0 +1,30 @@
+#
+# Copyright 2017 The Abseil Authors.
+#
+# 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.
+#
+
+
+
+add_subdirectory(base)
+add_subdirectory(algorithm)
+add_subdirectory(container)
+add_subdirectory(debugging)
+add_subdirectory(memory)
+add_subdirectory(meta)
+add_subdirectory(numeric)
+add_subdirectory(strings)
+add_subdirectory(synchronization)
+add_subdirectory(time)
+add_subdirectory(types)
+add_subdirectory(utility)