When I compile I got the following error  : fatal error: boost/functional/hash.hpp: No such file or directory #include <boost/functional/hash.hpp>.

Obviously the compiler do not find the library, so my question is  : how can I tell him where the library is  ? I prefer to set some environment variable, and if it is not possible, how can I do that using CMake  ?

When I compile I got the following error:

fatal error: boost/functional/hash.hpp: No such file or directory #include <boost/functional/hash.hpp> 

Obviously, the compiler does not find the library, so my question is: how can I tell him where the library is? I prefer to set some environment variable, and if it is not possible, how can I do that using CMake?

The file that calls boost :

#include "../../include/util/SubsetInt.hpp" #include <boost/functional/hash.hpp> namespace cats { SubsetInt::SubsetInt(const SubsetInt& p) { field = std::vector<uint64_t>(); for (uint64_t e : p.field) { field.push_back(e); } } } 

The CMakeLists.txt :

cmake_minimum_required(VERSION 3.1) project(catsFramework) find_package(Boost REQUIRED COMPONENTS system unit_test_framework) find_package(OpenMP REQUIRED) set(CMAKE_CXX_STANDARD 17) set(CMAKE_CXX_FLAGS "${OpenMP_CXX_FLAGS} -O3 -DNDEBUG -Wall") # set(CMAKE_CXX_FLAGS "${OpenMP_CXX_FLAGS} -O1 -g -Wall") ################### COMBINATOR LIBS ########################## add_library(LDSCombinator STATIC include/combinators/LDSCombinator.hpp src/combinators/LDSCombinator.cpp ) add_library(PrefixEquivalenceCombinator STATIC include/combinators/PrefixEquivalenceCombinator.hpp src/combinators/PrefixEquivalenceCombinator.cpp ) add_library(IterativeBroadeningCombinator STATIC include/combinators/IterativeBroadeningCombinator.hpp src/combinators/IterativeBroadeningCombinator.cpp ) add_library(ProbingCombinator STATIC include/combinators/ProbingCombinator.hpp src/combinators/ProbingCombinator.cpp ) add_library(SolutionPartsCombinator STATIC include/combinators/SolutionPartsCombinator.hpp src/combinators/SolutionPartsCombinator.cpp ) add_library(WeightedCombinator STATIC include/combinators/WeightedCombinator.hpp src/combinators/WeightedCombinator.cpp ) # all combinators defintion set( COMBINATORS LDSCombinator IterativeBroadeningCombinator PrefixEquivalenceCombinator ProbingCombinator SolutionPartsCombinator WeightedCombinator ) ############## TREE SEARCH ALGORITHMS ################# add_library(DFS STATIC include/treesearch/DFS.hpp src/treesearch/DFS.cpp ) add_library(BFS STATIC include/treesearch/BFS.hpp src/treesearch/BFS.cpp ) add_library(AStar STATIC include/treesearch/AStar.hpp src/treesearch/AStar.cpp ) add_library(MBAStar STATIC include/treesearch/MBAStar.hpp src/treesearch/MBAStar.cpp ) add_library(BeamSearch STATIC include/treesearch/BeamSearch.hpp src/treesearch/BeamSearch.cpp ) add_library(GreedyRandom STATIC include/treesearch/GreedyRandom.hpp src/treesearch/GreedyRandom.cpp ) add_library(WeightedAStar STATIC include/treesearch/WeightedAStar.hpp src/treesearch/WeightedAStar.cpp ) add_library(Greedy STATIC include/treesearch/Greedy.hpp src/treesearch/Greedy.cpp ) add_library(IterativeMBAStar STATIC include/treesearch/IterativeMBAStar.hpp src/treesearch/IterativeMBAStar.cpp ) add_library(IterativeBeamSearch STATIC include/treesearch/IterativeBeamSearch.hpp src/treesearch/IterativeBeamSearch.cpp ) add_library(LDS STATIC include/treesearch/LDS.hpp src/treesearch/LDS.cpp ) add_library(BULB STATIC include/treesearch/BULB.hpp src/treesearch/BULB.cpp ) add_library(IterativeBroadening STATIC include/treesearch/IterativeBroadening.hpp src/treesearch/IterativeBroadening.cpp ) add_library(BranchAndGreed STATIC include/treesearch/BranchAndGreed.hpp src/treesearch/BranchAndGreed.cpp ) add_library(ACO STATIC include/treesearch/ACO.hpp src/treesearch/ACO.cpp ) add_library(RouletteWheelGreedy STATIC include/treesearch/RouletteWheelGreedy.hpp src/treesearch/RouletteWheelGreedy.cpp ) add_library(IterativeRouletteWheelGreedy STATIC include/treesearch/IterativeRouletteWheelGreedy.hpp src/treesearch/IterativeRouletteWheelGreedy.cpp ) add_library(MCTS STATIC include/treesearch/RouletteWheelGreedy.hpp src/treesearch/RouletteWheelGreedy.cpp include/treesearch/MCTS.hpp src/treesearch/MCTS.cpp ) add_library(AnytimeColumnSearch STATIC include/treesearch/AnytimeColumnSearch.hpp src/treesearch/AnytimeColumnSearch.cpp ) # all tree search algorithms set( ALGORITHMS DFS BFS AStar MBAStar BeamSearch GreedyRandom WeightedAStar Greedy BranchAndGreed IterativeBroadening BULB LDS IterativeBeamSearch IterativeMBAStar ACO RouletteWheelGreedy IterativeRouletteWheelGreedy MCTS AnytimeColumnSearch ) # base code add_library(catsBase STATIC include/Node.hpp include/SearchManager.hpp include/Store.hpp include/io.hpp include/numeric.hpp include/SolutionParts.hpp include/Combinator.hpp include/PrefixEquivalence.hpp src/Node.cpp src/SearchManager.cpp src/io.cpp ) # util code add_library(catsUtil STATIC # set ( UTIL include/util/includeAlgorithms.hpp include/util/SubsetInt.hpp src/util/SubsetInt.cpp ) set ( ALL ${COMBINATORS} ${ALGORITHMS} catsUtil catsBase ) # UNIT TESTING enable_testing() add_executable( testInverseBS.exe unittest/testInverseBS.cpp unittest/InverseGuideBS.hpp) target_link_libraries(testInverseBS.exe ${ALL}) add_executable( testSubsetInt.exe unittest/testSubsetInt.cpp) target_link_libraries(testSubsetInt.exe ${ALL}) add_test( InverseBS testInverseBS.exe ) add_test( SubsetInt testSubsetInt.exe )