PYTHON_LIBRARY: PYTHON_LIBRARY-NOTFOUND

[feizi]

When I install k2 from source, I encount an error as follows:
OS: ubuntu 16.04

/usr/bin/ld: cannot find -lPYTHON_LIBRARY-NOTFOUND

I do not know how to solve it.

[csukuangfj]

How did you install python?

Could you show the complete logs?

[feizi]

I install python by conda, like conda create -n env python=3.8
The complete log:

-- CMAKE_VERSION: 3.18.6
-- Enabled languages: CXX;CUDA
-- The CXX compiler identification is GNU 7.1.0
-- The CUDA compiler identification is NVIDIA 10.2.89
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /home/xysun/software/gcc/gcc_7_1/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Detecting CUDA compiler ABI info
-- Detecting CUDA compiler ABI info - done
-- Check for working CUDA compiler: /home/xysun/cuda/cuda-10.2/bin/nvcc - skipped
-- Detecting CUDA compile features
-- Detecting CUDA compile features - done
-- K2_OS: Ubuntu 16.04.4 LTS
-- Found Git: /usr/bin/git (found version "2.7.4") 
-- Looking for C++ include cxxabi.h
-- Looking for C++ include cxxabi.h - found
-- Looking for C++ include execinfo.h
-- Looking for C++ include execinfo.h - found
-- Performing Test K2_COMPILER_SUPPORTS_CXX14
-- Performing Test K2_COMPILER_SUPPORTS_CXX14 - Success
-- C++ Standard version: 14
-- Autodetected CUDA architecture(s):  7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0
-- K2_COMPUTE_ARCH_FLAGS: -gencode;arch=compute_70,code=sm_70
-- K2_COMPUTE_ARCH_CANDIDATES 35;50;60;61;70;75
-- Skipping arch 35
-- Skipping arch 50
-- Skipping arch 60
-- Skipping arch 61
-- Adding arch 70
-- Skipping arch 75
-- K2_COMPUTE_ARCHS: 70
-- Could NOT find Valgrind (missing: Valgrind_INCLUDE_DIR Valgrind_EXECUTABLE) 
-- Downloading pybind11
-- pybind11 is downloaded to /home/xysun/software/k2/build_release/_deps/pybind11-src
-- pybind11 v2.6.0 
-- Found PythonInterp: /home/xysun/miniconda3/envs/k2/bin/python (found version "3.8.13") 
-- Found PythonLibs: python3.8
-- Performing Test HAS_FLTO
-- Performing Test HAS_FLTO - Success
-- Python executable: /home/xysun/miniconda3/envs/k2/bin/python
-- Looking for C++ include pthread.h
-- Looking for C++ include pthread.h - found
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Failed
-- 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  
-- Found CUDA: /home/xysun/cuda/cuda-10.2 (found version "10.2") 
-- Caffe2: CUDA detected: 10.2
-- Caffe2: CUDA nvcc is: /home/xysun/cuda/cuda-10.2/bin/nvcc
-- Caffe2: CUDA toolkit directory: /home/xysun/cuda/cuda-10.2
-- Caffe2: Header version is: 10.2
-- Found CUDNN: /home/xysun/cuda/cuda-10.2/lib64/libcudnn.so  
-- Found cuDNN: v8.3.0  (include: /home/xysun/cuda/cuda-10.2/include, library: /home/xysun/cuda/cuda-10.2/lib64/libcudnn.so)
-- /home/xysun/cuda/cuda-10.2/lib64/libnvrtc.so shorthash is 08c4863f
-- Autodetected CUDA architecture(s):  7.0 7.0 7.0 7.0 7.0 7.0 7.0 7.0
-- Added CUDA NVCC flags for: -gencode;arch=compute_70,code=sm_70
CMake Warning at /home/xysun/miniconda3/envs/k2/lib/python3.8/site-packages/torch/share/cmake/Torch/TorchConfig.cmake:22 (message):
  static library kineto_LIBRARY-NOTFOUND not found.
Call Stack (most recent call first):
  /home/xysun/miniconda3/envs/k2/lib/python3.8/site-packages/torch/share/cmake/Torch/TorchConfig.cmake:127 (append_torchlib_if_found)
  cmake/torch.cmake:11 (find_package)
  CMakeLists.txt:279 (include)


-- Found Torch: /home/xysun/miniconda3/envs/k2/lib/python3.8/site-packages/torch/lib/libtorch.so  
-- PyTorch version: 1.12.1
-- PyTorch cuda version: 10.2
-- Generated /home/xysun/software/k2/build_release/torch_version.py
-- Downloading cub
-- cub is downloaded to /home/xysun/software/k2/build_release/_deps/cub-src
-- Downloading moderngpu
-- moderngpu is downloaded to /home/xysun/software/k2/build_release/_deps/moderngpu-src
-- Downloading googletest
-- googletest is downloaded to /home/xysun/software/k2/build_release/_deps/googletest-src
-- googletest's binary dir is /home/xysun/software/k2/build_release/_deps/googletest-build
-- The C compiler identification is GNU 7.1.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /home/xysun/software/gcc/gcc_7_1/bin/gcc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- CMAKE_CUDA_FLAGS:   -lineinfo --expt-extended-lambda -use_fast_math -Xptxas=-w  --expt-extended-lambda -gencode arch=compute_70,code=sm_70 -DONNX_NAMESPACE=onnx_c2 -gencode arch=compute_70,code=sm_70 -Xcudafe --diag_suppress=cc_clobber_ignored,--diag_suppress=integer_sign_change,--diag_suppress=useless_using_declaration,--diag_suppress=set_but_not_used,--diag_suppress=field_without_dll_interface,--diag_suppress=base_class_has_different_dll_interface,--diag_suppress=dll_interface_conflict_none_assumed,--diag_suppress=dll_interface_conflict_dllexport_assumed,--diag_suppress=implicit_return_from_non_void_function,--diag_suppress=unsigned_compare_with_zero,--diag_suppress=declared_but_not_referenced,--diag_suppress=bad_friend_decl --expt-relaxed-constexpr --expt-extended-lambda -D_GLIBCXX_USE_CXX11_ABI=0 --compiler-options -Wall  --compiler-options -Wno-strict-overflow  --compiler-options -Wno-unknown-pragmas 
-- CMAKE_CXX_FLAGS:  -D_GLIBCXX_USE_CXX11_ABI=0 -Wno-unused-variable  -Wno-strict-overflow 
-- CMAKE_CUDA_FLAGS:   -lineinfo --expt-extended-lambda -use_fast_math -Xptxas=-w  --expt-extended-lambda -gencode arch=compute_70,code=sm_70 -DONNX_NAMESPACE=onnx_c2 -gencode arch=compute_70,code=sm_70 -Xcudafe --diag_suppress=cc_clobber_ignored,--diag_suppress=integer_sign_change,--diag_suppress=useless_using_declaration,--diag_suppress=set_but_not_used,--diag_suppress=field_without_dll_interface,--diag_suppress=base_class_has_different_dll_interface,--diag_suppress=dll_interface_conflict_none_assumed,--diag_suppress=dll_interface_conflict_dllexport_assumed,--diag_suppress=implicit_return_from_non_void_function,--diag_suppress=unsigned_compare_with_zero,--diag_suppress=declared_but_not_referenced,--diag_suppress=bad_friend_decl --expt-relaxed-constexpr --expt-extended-lambda -D_GLIBCXX_USE_CXX11_ABI=0 --compiler-options -Wall  --compiler-options -Wno-strict-overflow  --compiler-options -Wno-unknown-pragmas 
-- Generated /home/xysun/software/k2/build_release/k2/csrc/version.h
-- PYTHON_LIBRARY: PYTHON_LIBRARY-NOTFOUND
-- Configuring done
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:
PYTHON_LIBRARY (ADVANCED)
    linked by target "_k2" in directory /home/xysun/software/k2/k2/python/csrc

...

Scanning dependencies of target torch_api_test
[ 97%] Building CXX object k2/csrc/CMakeFiles/torch_api_test.dir/torch_api_test.cc.o
[ 98%] Linking CXX executable ../../bin/torch_api_test
[ 98%] Built target torch_api_test
[100%] Linking CUDA device code CMakeFiles/_k2.dir/cmake_device_link.o
[100%] Linking CUDA shared module ../../../lib/_k2.cpython-38-x86_64-linux-gnu.so
/usr/bin/ld: cannot find -lPYTHON_LIBRARY-NOTFOUND
collect2: error: ld returned 1 exit status
k2/python/csrc/CMakeFiles/_k2.dir/build.make:495: recipe for target 'lib/_k2.cpython-38-x86_64-linux-gnu.so' failed
make[2]: *** [lib/_k2.cpython-38-x86_64-linux-gnu.so] Error 1
CMakeFiles/Makefile2:2224: recipe for target 'k2/python/csrc/CMakeFiles/_k2.dir/all' failed
make[1]: *** [k2/python/csrc/CMakeFiles/_k2.dir/all] Error 2
Makefile:159: recipe for target 'all' failed
make: *** [all] Error 2

[csukuangfj]

Could you attach the file CMakeCache.txt from your build directory?

[feizi]

CMakeCache:

# This is the CMakeCache file.
# For build in directory: /home/xysun/software/k2/build_release
# It was generated by CMake: /home/xysun/software/cmake/cmake_3_18/bin/cmake
# You can edit this file to change values found and used by cmake.
# If you do not want to change any of the values, simply exit the editor.
# If you do want to change a value, simply edit, save, and exit the editor.
# The syntax for the file is as follows:
# KEY:TYPE=VALUE
# KEY is the name of a variable in the cache.
# TYPE is a hint to GUIs for the type of VALUE, DO NOT EDIT TYPE!.
# VALUE is the current value for the KEY.

########################
# EXTERNAL cache entries
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//Path to a library.
CUDNN_LIBRARY_PATH:FILEPATH=/home/xysun/cuda/cuda-10.2/lib64/libcudnn.so

//Folder containing NVIDIA cuDNN
CUDNN_ROOT:PATH=

//Look for static CUDNN
CUDNN_STATIC:BOOL=OFF

//The directory containing a CMake configuration file for Caffe2.
Caffe2_DIR:PATH=/home/xysun/miniconda3/envs/k2/lib/python3.8/site-packages/torch/share/cmake/Caffe2

//Directory under which to collect all populated content
FETCHCONTENT_BASE_DIR:PATH=/home/xysun/software/k2/build_release/_deps

//Disables all attempts to download or update content and assumes
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FETCHCONTENT_FULLY_DISCONNECTED:BOOL=OFF

//Enables QUIET option for all content population
FETCHCONTENT_QUIET:BOOL=ON

//When not empty, overrides where to find pre-populated content
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FETCHCONTENT_SOURCE_DIR_CUB:PATH=

//When not empty, overrides where to find pre-populated content
// for googletest
FETCHCONTENT_SOURCE_DIR_GOOGLETEST:PATH=

//When not empty, overrides where to find pre-populated content
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FETCHCONTENT_SOURCE_DIR_MODERNGPU:PATH=

//When not empty, overrides where to find pre-populated content
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FETCHCONTENT_SOURCE_DIR_PYBIND11:PATH=

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FETCHCONTENT_UPDATES_DISCONNECTED:BOOL=OFF

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FETCHCONTENT_UPDATES_DISCONNECTED_CUB:BOOL=OFF

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FETCHCONTENT_UPDATES_DISCONNECTED_GOOGLETEST:BOOL=OFF

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FETCHCONTENT_UPDATES_DISCONNECTED_PYBIND11:BOOL=OFF

//Git command line client
GIT_EXECUTABLE:FILEPATH=/usr/bin/git

//Enable installation of googletest. (Projects embedding googletest
// may want to turn this OFF.)
INSTALL_GTEST:BOOL=OFF

//Whether to enable benchmark
K2_ENABLE_BENCHMARK:BOOL=ON

//Whether to build k2 with the NVTX library
K2_ENABLE_NVTX:BOOL=ON

//Whether to build tests
K2_ENABLE_TESTS:BOOL=ON

//Path to a program.
K2_HAS_NVCC:FILEPATH=/home/xysun/cuda/cuda-10.2/bin/nvcc

//Whether to build with PyTorch
K2_USE_PYTORCH:BOOL=ON

//Whether to build k2 with CUDA
K2_WITH_CUDA:BOOL=ON

//Path to a library.
LIBNVTOOLSEXT:FILEPATH=/home/xysun/cuda/cuda-10.2/lib64/libnvToolsExt.so

//The directory containing a CMake configuration file for MKLDNN.
MKLDNN_DIR:PATH=MKLDNN_DIR-NOTFOUND

//The directory containing a CMake configuration file for MKL.
MKL_DIR:PATH=MKL_DIR-NOTFOUND

//Force new FindPython
PYBIND11_FINDPYTHON:BOOL=OFF

//Install pybind11 header files?
PYBIND11_INSTALL:BOOL=OFF

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PYBIND11_NOPYTHON:BOOL=OFF

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PYBIND11_PYTHON_VERSION:STRING=

//Build pybind11 test suite?
PYBIND11_TEST:BOOL=OFF

//Path to a program.
PYTHON_EXECUTABLE:FILEPATH=/home/xysun/miniconda3/envs/k2/bin/python

//Path to a library.
PYTHON_LIBRARY:FILEPATH=PYTHON_LIBRARY-NOTFOUND

//Path to a library.
TORCH_LIBRARY:FILEPATH=/home/xysun/miniconda3/envs/k2/lib/python3.8/site-packages/torch/lib/libtorch.so

//The directory containing a CMake configuration file for Torch.
Torch_DIR:PATH=/home/xysun/miniconda3/envs/k2/lib/python3.8/site-packages/torch/share/cmake/Torch

//Path to a program.
Valgrind_EXECUTABLE:FILEPATH=Valgrind_EXECUTABLE-NOTFOUND

//Path to a file.
Valgrind_INCLUDE_DIR:PATH=Valgrind_INCLUDE_DIR-NOTFOUND

//Dependencies for the target
benchmark_LIB_DEPENDS:STATIC=general;context;general;test_utils;

//Path to a library.
c10_LIBRARY:FILEPATH=/home/xysun/miniconda3/envs/k2/lib/python3.8/site-packages/torch/lib/libc10.so

//Dependencies for the target
context_LIB_DEPENDS:STATIC=general;fsa;general;k2_log;general;torch;general;/home/xysun/miniconda3/envs/k2/lib/python3.8/site-packages/torch/lib/libc10.so;general;/home/xysun/cuda/cuda-10.2/lib64/stubs/libcuda.so;general;/home/xysun/cuda/cuda-10.2/lib64/libnvrtc.so;general;/home/xysun/cuda/cuda-10.2/lib64/libnvToolsExt.so;general;/home/xysun/cuda/cuda-10.2/lib64/libcudart.so;general;/home/xysun/miniconda3/envs/k2/lib/python3.8/site-packages/torch/lib/libc10_cuda.so;

//Dependencies for the target
fsa_LIB_DEPENDS:STATIC=general;k2_log;general;-L/home/xysun/cuda/cuda-10.2/lib64;general;-L/home/xysun/cuda/cuda-10.2/lib;general;nvToolsExt;

//Value Computed by CMake
gmock_BINARY_DIR:STATIC=/home/xysun/software/k2/build_release/_deps/googletest-build/googlemock

//Dependencies for the target
gmock_LIB_DEPENDS:STATIC=general;gtest;

//Value Computed by CMake
gmock_SOURCE_DIR:STATIC=/home/xysun/software/k2/build_release/_deps/googletest-src/googlemock

//Build all of Google Mock's own tests.
gmock_build_tests:BOOL=OFF

//Dependencies for the target
gmock_main_LIB_DEPENDS:STATIC=general;gmock;

//Value Computed by CMake
googletest-distribution_BINARY_DIR:STATIC=/home/xysun/software/k2/build_release/_deps/googletest-build

//Value Computed by CMake
googletest-distribution_SOURCE_DIR:STATIC=/home/xysun/software/k2/build_release/_deps/googletest-src

//Value Computed by CMake
gtest_BINARY_DIR:STATIC=/home/xysun/software/k2/build_release/_deps/googletest-build/googletest

//Value Computed by CMake
gtest_SOURCE_DIR:STATIC=/home/xysun/software/k2/build_release/_deps/googletest-src/googletest

//Build gtest's sample programs.
gtest_build_samples:BOOL=OFF

//Build all of gtest's own tests.
gtest_build_tests:BOOL=OFF

//Disable uses of pthreads in gtest.
gtest_disable_pthreads:BOOL=ON

//Use shared (DLL) run-time lib even when Google Test is built
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gtest_force_shared_crt:BOOL=ON

//Build gtest with internal symbols hidden in shared libraries.
gtest_hide_internal_symbols:BOOL=OFF

//Dependencies for the target
gtest_main_LIB_DEPENDS:STATIC=general;gtest;

//Value Computed by CMake
k2_BINARY_DIR:STATIC=/home/xysun/software/k2/build_release

//Value Computed by CMake
k2_SOURCE_DIR:STATIC=/home/xysun/software/k2

//Dependencies for the target
k2_torch_api_LIB_DEPENDS:STATIC=general;context;

//Path to a library.
kineto_LIBRARY:FILEPATH=kineto_LIBRARY-NOTFOUND

//Value Computed by CMake
pybind11_BINARY_DIR:STATIC=/home/xysun/software/k2/build_release/_deps/pybind11-build

//Value Computed by CMake
pybind11_SOURCE_DIR:STATIC=/home/xysun/software/k2/build_release/_deps/pybind11-src

//Dependencies for the target
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CUDA_nppig_LIBRARY-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CUDA_nppim_LIBRARY
CUDA_nppim_LIBRARY-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CUDA_nppist_LIBRARY
CUDA_nppist_LIBRARY-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CUDA_nppisu_LIBRARY
CUDA_nppisu_LIBRARY-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CUDA_nppitc_LIBRARY
CUDA_nppitc_LIBRARY-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CUDA_npps_LIBRARY
CUDA_npps_LIBRARY-ADVANCED:INTERNAL=1
//Location of parse_cubin.cmake
CUDA_parse_cubin:INTERNAL=/home/xysun/miniconda3/envs/k2/lib/python3.8/site-packages/torch/share/cmake/Caffe2/Modules_CUDA_fix/upstream/FindCUDA/parse_cubin.cmake
//Location of run_nvcc.cmake
CUDA_run_nvcc:INTERNAL=/home/xysun/miniconda3/envs/k2/lib/python3.8/site-packages/torch/share/cmake/Caffe2/Modules_CUDA_fix/upstream/FindCUDA/run_nvcc.cmake
//ADVANCED property for variable: CUDNN_INCLUDE_DIR
CUDNN_INCLUDE_DIR-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CUDNN_LIBRARY
CUDNN_LIBRARY-ADVANCED:INTERNAL=1
//ADVANCED property for variable: CUDNN_ROOT
CUDNN_ROOT-ADVANCED:INTERNAL=1
//Details about finding CUDA
FIND_PACKAGE_MESSAGE_DETAILS_CUDA:INTERNAL=[/home/xysun/cuda/cuda-10.2][/home/xysun/cuda/cuda-10.2/bin/nvcc][/home/xysun/cuda/cuda-10.2/include][/home/xysun/cuda/cuda-10.2/lib64/libcudart.so][v10.2()]
//Details about finding CUDNN
FIND_PACKAGE_MESSAGE_DETAILS_CUDNN:INTERNAL=[/home/xysun/cuda/cuda-10.2/lib64/libcudnn.so][/home/xysun/cuda/cuda-10.2/include][v()]
//Details about finding Git
FIND_PACKAGE_MESSAGE_DETAILS_Git:INTERNAL=[/usr/bin/git][v2.7.4()]
//Details about finding PYTHON
FIND_PACKAGE_MESSAGE_DETAILS_PYTHON:INTERNAL=/home/xysun/miniconda3/envs/k2/bin/python3.8.13
//Details about finding PythonInterp
FIND_PACKAGE_MESSAGE_DETAILS_PythonInterp:INTERNAL=[/home/xysun/miniconda3/envs/k2/bin/python][v3.8.13()]
//Details about finding Threads
FIND_PACKAGE_MESSAGE_DETAILS_Threads:INTERNAL=[TRUE][v()]
//Details about finding Torch
FIND_PACKAGE_MESSAGE_DETAILS_Torch:INTERNAL=[/home/xysun/miniconda3/envs/k2/lib/python3.8/site-packages/torch/lib/libtorch.so][/home/xysun/miniconda3/envs/k2/lib/python3.8/site-packages/torch/include;/home/xysun/miniconda3/envs/k2/lib/python3.8/site-packages/torch/include/torch/csrc/api/include][v()]
//ADVANCED property for variable: GIT_EXECUTABLE
GIT_EXECUTABLE-ADVANCED:INTERNAL=1
//Test HAS_FLTO
HAS_FLTO:INTERNAL=1
//Test K2_COMPILER_SUPPORTS_CXX14
K2_COMPILER_SUPPORTS_CXX14:INTERNAL=1
//Have include cxxabi.h
K2_HAVE_CXXABI_H:INTERNAL=1
//Have include execinfo.h
K2_HAVE_EXECINFO_H:INTERNAL=1
PYBIND11_INCLUDE_DIR:INTERNAL=/home/xysun/software/k2/build_release/_deps/pybind11-src/include
//ADVANCED property for variable: PYTHON_EXECUTABLE
PYTHON_EXECUTABLE-ADVANCED:INTERNAL=1
PYTHON_INCLUDE_DIRS:INTERNAL=/home/xysun/miniconda3/envs/k2/include/python3.8
PYTHON_IS_DEBUG:INTERNAL=0
PYTHON_LIBRARIES:INTERNAL=python3.8
//ADVANCED property for variable: PYTHON_LIBRARY
PYTHON_LIBRARY-ADVANCED:INTERNAL=1
PYTHON_MODULE_EXTENSION:INTERNAL=.cpython-38-x86_64-linux-gnu.so
PYTHON_MODULE_PREFIX:INTERNAL=
PYTHON_VERSION:INTERNAL=3.8.13
PYTHON_VERSION_MAJOR:INTERNAL=3
PYTHON_VERSION_MINOR:INTERNAL=8
Python_ADDITIONAL_VERSIONS:INTERNAL=3.9;3.8;3.7;3.6;3.5;3.4
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//ADVANCED property for variable: Valgrind_INCLUDE_DIR
Valgrind_INCLUDE_DIR-ADVANCED:INTERNAL=1
//CMAKE_INSTALL_PREFIX during last run
_GNUInstallDirs_LAST_CMAKE_INSTALL_PREFIX:INTERNAL=/usr/local
_Python:INTERNAL=PYTHON
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compile_result:INTERNAL=TRUE
//ADVANCED property for variable: gmock_build_tests
gmock_build_tests-ADVANCED:INTERNAL=1
//ADVANCED property for variable: gtest_build_samples
gtest_build_samples-ADVANCED:INTERNAL=1
//ADVANCED property for variable: gtest_build_tests
gtest_build_tests-ADVANCED:INTERNAL=1
//ADVANCED property for variable: gtest_disable_pthreads
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gtest_hide_internal_symbols-ADVANCED:INTERNAL=1
//true if pybind11 and all required components found on the system
pybind11_FOUND:INTERNAL=TRUE
//Directory where pybind11 headers are located
pybind11_INCLUDE_DIR:INTERNAL=/home/xysun/software/k2/build_release/_deps/pybind11-src/include
//Result of TRY_RUN
run_result:INTERNAL=0

[csukuangfj]

Are you able to find libpython*.so in the following locations?

• /usr
• /lib
• /home/xysun/miniconda3

[feizi]

Yes, I can find libpython3.8.so in /home/xysun/miniconda3/envs/k2/lib/
I manually modified PYTHON_LIBRARY in CMakeCache.txt，and run make -j

PYTHON_LIBRARY:FILEPATH=/home/xysun/miniconda3/envs/k2/lib/python3.8

Now , It seems to be installed successfully. I am running a test program.

[feizi]

fsa_test_py failed
all remaining tasks： passed

Has it been installed successfully?

[csukuangfj]

fsa_test_py failed

Could you show the error log?

[feizi]

no detailed error log, just like:

              Start  63: fsa_test_py
63/102  Test  #63 fsa_test_py ......... ***Failed  5.38 sec

[csukuangfj]

Could you use

ctest --output-on-failure

?

[feizi]

When I run ctest --output-on-failure, the error log show

You cannot use 'to_dot' unless the graphviz package is installed.
After I installed graphviz, fsa_test_py task is passed.

Thanks @csukuangfj.

[csukuangfj]

Great to hear that all tests passed.