Cmake compiler error ANN library not found - cmake

Question

I tried to compile this repository link but I am stuck with CMake Error: ann_LIBRARIES not found. While searching in the inernet I found ANN link which I build but I don't know how to give the absolute path in Cmake file. And also I installed libflann1.9 and libflann-dev but still I am having the same problem.
I have ubuntu 18.04 and qt5, boost lib, blas & lapack and libpng libraries are installed.
cmake ..
-- The C compiler identification is GNU 7.4.0
-- The CXX compiler identification is GNU 7.4.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Boost version: 1.65.1
-- Found the following Boost libraries:
-- serialization
-- filesystem
-- system
-- Found PkgConfig: /usr/bin/pkg-config (found version "0.29.1")
-- Checking for module 'libxml++-2.6'
-- Found libxml++-2.6, version 2.40.1
-- Boost version: 1.65.1
-- Found the following Boost libraries:
-- system
-- filesystem
-- Found OpenGL: /usr/lib/x86_64-linux-gnu/libOpenGL.so
-- Found GLUT: /usr/lib/x86_64-linux-gnu/libglut.so
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Looking for pthread_create
-- Looking for pthread_create - not found
-- Looking for pthread_create in pthreads
-- Looking for pthread_create in pthreads - not found
-- Looking for pthread_create in pthread
-- Looking for pthread_create in pthread - found
-- Found Threads: TRUE
-- Boost version: 1.65.1
-- Found the following Boost libraries:
-- thread
-- chrono
-- system
-- date_time
-- atomic
-- Boost version: 1.65.1
-- Found the following Boost libraries:
-- filesystem
-- system
-- Found ZLIB: /usr/lib/x86_64-linux-gnu/libz.so (found version "1.2.11")
-- Found PNG: /usr/lib/x86_64-linux-gnu/libpng.so (found version "1.6.34")
-- Boost version: 1.65.1
-- Found the following Boost libraries:
-- filesystem
-- thread
-- system
-- chrono
-- date_time
-- atomic
-- Boost version: 1.65.1
-- Found the following Boost libraries:
-- filesystem
-- thread
-- serialization
-- program_options
-- regex
-- system
-- chrono
-- date_time
-- atomic
-- Boost version: 1.65.1
-- Found the following Boost libraries:
-- filesystem
-- program_options
-- regex
-- system
-- Boost version: 1.65.1
-- Found the following Boost libraries:
-- filesystem
-- program_options
-- system
-- Boost version: 1.65.1
-- Found the following Boost libraries:
-- filesystem
-- program_options
-- regex
-- system
CMake Error: The following variables are used in this project, but they are set to NOTFOUND.
Please set them or make sure they are set and tested correctly in the CMake files:
ann_LIBRARIES
linked by target "TrackingUtils" in directory /home/dhiren/Dev/FranksVelodyneAlgos/libTrackingUtils
-- Configuring incomplete, errors occurred!
See also "/home/dhiren/Dev/FranksVelodyneAlgos/build/CMakeFiles/CMakeOutput.log".
See also "/home/dhiren/Dev/FranksVelodyneAlgos/build/CMakeFiles/CMakeError.log".
Thank you

Answer 1

Finally, I was able to compile the codebase
My procedures are given follows:
First I tried to compile the source code in ubuntu 18.04 but got stuck with so many errors, so I tried in ubuntu 14.04 (docker).
I installed the required packages as the author mentioned.
Now I stuck with ann_LIBRARIES problem, so for that, I downloaded ANN library from link and build by simply performing make linux-g++ from inside ann_1.1.2 folder
Now ANN library is ready to use. After that to avoid the ann_LIBRARIES problem while building process, we should perform command from terminal cmake -Dann_LIBRARIES=/home/ann_1.1.2/lib/libANN.a ..
Now so far I build the project sucessfully. Now time to compile the code using make command, again I got ANN/ANN.h: No such file or directory error which I resolved by giving absulute path #include </home/ann_1.1.2/include/ANN/ANN.h> //approximate) nearest neighbor from each file where the error arose. Obviously providing absolute path is not a good idea. That's it
Thanks to #Tsyvarev
Hope this will help somebody.