CMake Error shows the version wrong

[gaoshan2006]

I installed gflags from source code. And gflags was built in /home/local/. Then when I compiled Paddle, I was meeting the following errors. I have verified the CMake version on my machine is 3.6 above 2.8, however it always shows "This file relies on consumers using CMake 2.8.12 or greater.", What's the reason ? Could you help me please ? Thanks

/////////////////////////////////////////////////////////////////////////////////////////////////////////
cmake .. -DWITH_GPU=OFF -DWITH_DOC=OFF

-- No preference for use of exported gflags CMake configuration set, and no hints for include/library directories provided. Defaulting to preferring an installed/exported gflags CMake configuration if available.
CMake Error at /home/local/lib/cmake/gflags/gflags-targets.cmake:66 (message):
This file relies on consumers using CMake 2.8.12 or greater.
Call Stack (most recent call first):
/home/local/lib/cmake/gflags/gflags-config.cmake:10 (include)
cmake/FindGflags.cmake:318 (find_package)
CMakeLists.txt:27 (find_package)
////////////////////////////////////////////////////////////////////////////////////////////////////////////

[hedaoyuan]

Have not encountered such a problem.
Try modify the first line of the CMakeLists.txt file to cmake_minimum_required (VERSION 2.8.12).
By the way, what version of gflags you use?

[gaoshan2006]

The version of gflags source code I got from github is 1.8.3.1
I modified CMakeLists.txt file, by changing "cmake_minimum_required (VERSION 2.8) " to "cmake_minimum_required (VERSION 2.8.12) "

Then the error shows:
cmake .. -DWITH_GPU=OFF -DWITH_DOC=OFF
CMake Error at CMakeLists.txt:1 (cmake_minimum_required):
CMake 2.8.12 or higher is required. You are running version 2.8.11

But actually, when I check cmake version ("cmake -version"), the result is :
cmake version 3.6.20160704-g75232

[hedaoyuan]

I think the problem may be in your cmake environment.
In my environment, cmake -version show cmake version 3.2.2.
If set cmake_minimum_required(VERSION 3.3), the following error will be reported.

CMake Error at CMakeLists.txt:1 (cmake_minimum_required):
CMake 3.3 or higher is required. You are running version 3.2.2

If set the VERSION less than 3.2, no error reported.

[gaoshan2006]

Make sense. It looks the problem is from my cmake. Thanks a lot !