CMakeLists.txt

cmake_minimum_required(VERSION 2.8)
project(compute_gist)
set(CMAKE_BUILD_TYPE "Release")


################
# FFTW (fast fourier transform)
################
SET(FFTW_SEARCH_PATHS
    ${CMAKE_SOURCE_DIR}/fftw-3.3.4-dll32
    /usr/lib
    $ENV{LD_LIBRARY_PATH}
    $ENV{FFTW_HOME}/lib )


#FIND_LIBRARY(FFTW_LIB NAMES fftw3 fftw3f fftw3f-3 fftw3l-3 PATHS ${FFTW_SEARCH_PATHS})
FIND_LIBRARY(FFTW_LIB NAMES fftw3f fftw3f-3 PATHS ${FFTW_SEARCH_PATHS})

SET(FFTW_FOUND FALSE)
IF (FFTW_LIB)
    SET(FFTW_FOUND TRUE)
    MARK_AS_ADVANCED(FFTW_LIB)
ENDIF (FFTW_LIB)

IF (FFTW_FOUND)
    #IF (NOT FFTW_LIB_FIND_QUIETLY)
    MESSAGE(STATUS "Found FFTW: ${FFTW_LIB}")
    GET_FILENAME_COMPONENT(FFTW_PATH ${FFTW_LIB} PATH CACHE)
    SET(FFTW_INCLUDE_DIR ${FFTW_PATH}/../include CACHE FILEPATH "FFTW include directory.")
    MARK_AS_ADVANCED(FFTW_PATH)
    MARK_AS_ADVANCED(FFTW_INCLUDE_DIR)
    #ENDIF (NOT FFTW_LIB_FIND_QUIETLY)
    set(FFTW_LIBRARIES "${FFTW_LIBRARY}")
ELSE(FFTW_FOUND)
    #IF (FFTW_LIB_FIND_REQUIRED)
    MESSAGE(FATAL_ERROR "FATAL ERROR: Could not find FFTW")
    #ENDIF (FFTW_LIB_FIND_REQUIRED)
ENDIF (FFTW_FOUND)
################



################
# OPEN MP
################
message(STATUS "Checking OpenMP")
find_package(OpenMP REQUIRED)
IF(OPENMP_FOUND)
    MESSAGE(STATUS "Found OpenMP: ${OpenMP_C_FLAGS}")
    # add flags for OpenMP
    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${OpenMP_C_FLAGS}")
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${OpenMP_CXX_FLAGS}")
    set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${OpenMP_SHARED_LINKER_FLAGS}")
    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${OpenMP_EXE_LINKER_FLAGS}")
ELSE()
    MESSAGE(FATAL_ERROR "FATAL ERROR: Could not find OpenMP")
ENDIF()
################


################
# MATH Libraries
################
find_library(M_LIB m)
################

set(SOURCE_FILES 
    ${CMAKE_SOURCE_DIR}/gist/gist.c 
    ${CMAKE_SOURCE_DIR}/gist/gist.h
    ${CMAKE_SOURCE_DIR}/gist/compute_gist.c 
    ${CMAKE_SOURCE_DIR}/gist/standalone_image.c
    ${CMAKE_SOURCE_DIR}/gist/standalone_image.h)

include_directories(${CMAKE_SOURCE_DIR}/gist)
include_directories(${FFTW_INCLUDE_DIR})  # unix include
include_directories(${FFTW_PATH})   # win32 include

# Add definition flags
add_definitions(-DUSE_GIST -DSTANDALONE_GIST)

add_executable(compute_gist ${SOURCE_FILES})

########################################
message("FFTW_LIB  = ${FFTW_LIB}")
message("FFTW_PATH = ${FFTW_PATH}")
message("FFTW_INCLUDE_DIR = ${FFTW_INCLUDE_DIR}")
message("FFTW_LIBRARIES = ${FFTW_LIBRARIES}")
message("M_LIB = ${M_LIB}")
message("CMAKE_C_FLAGS = ${CMAKE_C_FLAGS}")
message("CMAKE_CXX_FLAGS = ${CMAKE_CXX_FLAGS}")
message("CMAKE_SHARED_LINKER_FLAGS = ${CMAKE_SHARED_LINKER_FLAGS}")
message("CMAKE_EXE_LINKER_FLAGS = ${CMAKE_EXE_LINKER_FLAGS}")

target_link_libraries(compute_gist ${FFTW_LIB} ${M_LIB})