Hi all , I was writing CMakelist.txt to compile my cpp code(prose ) which makes use of two external libraries :libsndfile and fftw .
The script I have written is below : CMAKE_MINIMUM_REQUIRED(VERSION 2.8) PROJECT(PROSE) ######################################################################################################################################################################################################################################################## include(ExternalProject) MESSAGE(STATUS "Trying to install fftw...") ExternalProject_Add(fftw #GIT_REPOSITORY https://github.com/FFTW/fftw3 URL "http://www.fftw.org/fftw-3.3.2.tar.gz"; PREFIX ${CMAKE_CURRENT_BINARY_DIR}/fftw_library CONFIGURE_COMMAND "" #--Build step----------------- BUILD_COMMAND "" #--Install step--------------- UPDATE_COMMAND "" # Skip annoying updates for every build INSTALL_COMMAND "" ) include_directories(${CMAKE_CURRENT_BINARY_DIR}/fftw_library/src/fftw/api) ######################################################################################################################################################################################################################################################## include(ExternalProject) MESSAGE(STATUS "Trying to install libsndfile...") ExternalProject_Add(project_libsndfile GIT_REPOSITORY https://github.com/erikd/libsndfile.git PREFIX lib/libsndfile CONFIGURE_COMMAND <SOURCE_DIR>/configure BUILD_COMMAND make BUILD_IN_SOURCE 1 INSTALL_COMMAND echo Skipping install step for libsndfile ) ExternalProject_Add_Step(project_libsndfile autogen COMMAND <SOURCE_DIR>/autogen.sh DEPENDEES update DEPENDERS configure ) ExternalProject_Get_Property(project_libsndfile BINARY_DIR) SET(libsndfile_lib_dir "${BINARY_DIR}/src/.libs") SET(libsndfile_inc_dir "${BINARY_DIR}/src") ADD_LIBRARY(libsndfile STATIC IMPORTED) SET_PROPERTY(TARGET libsndfile PROPERTY IMPORTED_LOCATION ${libsndfile_lib_dir}/libsndfile.a) SET(LIBSNDFILE_INCLUDE_PATH "${install_dir}/src/project_libsndfile-build/src/") INCLUDE_DIRECTORIES(include ${libsndfile_inc_dir}) ######################################################################################################################################################################################################################################################## ADD_EXECUTABLE(prose ${PROJECT_SOURCE_DIR}/src/prose.cpp) TARGET_LINK_LIBRARIES(prose ${fftw} libsndfile ) ######################################################################################################################################################################################################################################################## When cmake .. is done building is done without any problem But when make is one , I get the following error: *Linking CXX executable proseCMakeFiles/prose.dir/src/prose.cpp.o: In function `prose(std::vector<double, std::allocator<double> >, int, double)':prose.cpp:(.text+0x1c86): undefined reference to `fftw_plan_r2r_1d'prose.cpp:(.text+0x1c9c): undefined reference to `fftw_execute'prose.cpp:(.text+0x311d): undefined reference to `fftw_plan_r2r_1d'prose.cpp:(.text+0x3133): undefined reference to `fftw_execute'collect2: error: ld returned 1 exit statusmake[2]: *** [prose] Error 1make[1]: *** [CMakeFiles/prose.dir/all] Error 2make: *** [all] Error 2* Where Am I going wrong ? Can anyone please help me out ? P.S *`fftw_plan_r2r_1d',* * `fftw_execute' are functions from fftw library I have used to find dct .* -- Regards, Aishwarya Selvaraj
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