i learn c++, OpenMP. I have tried compile my program with omp_get_wtime and it doesn't work, but when i deleted this, it works. i must add something, but what and where. In openmptryflags or Cmakelists?
snap/clion/61/bin/cmake/linux/bin/cmake --build /home/bapah/CLionProjects/omp1/cmake-build-debug --target omp1 -- -j 6
[ 50%] Linking CXX executable omp1
CMakeFiles/omp1.dir/main.cpp.o: In function `main':
/home/bapah/CLionProjects/omp1/main.cpp:36: undefined reference to `omp_get_wtime'
collect2: error: ld returned 1 exit status
CMakeFiles/omp1.dir/build.make:83: recipe for target 'omp1' failed
make[3]: *** [omp1] Error 1
CMakeFiles/Makefile2:72: recipe for target 'CMakeFiles/omp1.dir/all' failed
make[2]: *** [CMakeFiles/omp1.dir/all] Error 2
CMakeFiles/Makefile2:84: recipe for target 'CMakeFiles/omp1.dir/rule' failed
make[1]: *** [CMakeFiles/omp1.dir/rule] Error 2
Makefile:118: recipe for target 'omp1' failed
make: *** [omp1] Error 2
Solution :
add to CMakeList.txt
SET_TARGET_PROPERTIES(omp1 PROPERTIES COMPILE_FLAGS "-fopenmp"
LINK_FLAGS "-fopenmp")
P.s. omp1 - name your project.
P.p.s. also you can write target_link_libraries(omp1 -fopenmp)
Related
In this time, I want to use Freeopcua to create a library to use in other project.
I have install all the tools in debian.soft file and build with following command sudo sh build.sh, cmake ., make, sudo make install. Although, in directory /usr/local/include and /usr/local/lib, there are opc directory and libopc*.so respectively, when I create a new cmake project, there is an error. Hope someone can help me or give some suggest. Thanks everyone~~~
I have refer to Libraries in /usr/local/lib not found, but it doesn't work for me
CMakeLists.txt
cmake_minimum_required(VERSION 2.8.12)
project(OPCUAIndependent)
include_directories(/usr/local/include/)
link_directories(/usr/local/lib/)
add_executable(sourceCode sourceCode.cpp)
target_link_libraries(sourceCode opc)
Error
[ 50%] Linking CXX executable sourceCode
/usr/bin/ld: cannot find -lopc
collect2: error: ld returned 1 exit status
CMakeFiles/sourceCode.dir/build.make:96: recipe for target 'sourceCode' failed
make[2]: *** [sourceCode] Error 1
CMakeFiles/Makefile2:82: recipe for target 'CMakeFiles/sourceCode.dir/all' failed
make[1]: *** [CMakeFiles/sourceCode.dir/all] Error 2
Makefile:90: recipe for target 'all' failed
make: *** [all] Error 2
I've been trying to build a piece of code in webassembly that would use OpenCV.
I took https://github.com/mpizenberg/emscripten-opencv to start building, this worked well, but when I try adding cv::resize to be able to resize an image, that's when I have some issues:
make[1]: Entering directory '/code/build'
make[2]: Entering directory '/code/build'
make[3]: Entering directory '/code/build'
Scanning dependencies of target hello
make[3]: Leaving directory '/code/build'
make[3]: Entering directory '/code/build'
[ 50%] Building CXX object CMakeFiles/hello.dir/source/main.cpp.o
[100%] Linking CXX executable hello.js
error: undefined symbol: _Z7cvFloorRKN2cv10softdoubleE
warning: To disable errors for undefined symbols use `-s ERROR_ON_UNDEFINED_SYMBOLS=0`
error: undefined symbol: _Z7cvRoundRKN2cv10softdoubleE
error: undefined symbol: _Z9cvRound64RKN2cv10softdoubleE
error: undefined symbol: _ZN2cv10softdoubleC1Ei
error: undefined symbol: _ZN2cv10softdoubleC1Ex
error: undefined symbol: _ZNK2cv10softdoubledvERKS0_
error: undefined symbol: _ZNK2cv10softdoublemiERKS0_
error: undefined symbol: _ZNK2cv10softdoublemlERKS0_
error: undefined symbol: _ZNK2cv10softdoubleplERKS0_
Error: Aborting compilation due to previous errors
shared:ERROR: '/emsdk_portable/node/bin/node /emsdk_portable/sdk/src/compiler.js /tmp/tmpS6bxjF.txt /emsdk_portable/sdk/src/embind/emval.js /emsdk_portable/sdk/src/embind/embind.js /emsdk_portable/sdk/src/library_pthread_stub.js' failed (1)
CMakeFiles/hello.dir/build.make:95: recipe for target 'hello.js' failed
make[3]: *** [hello.js] Error 1
make[3]: Leaving directory '/code/build'
CMakeFiles/Makefile2:72: recipe for target 'CMakeFiles/hello.dir/all' failed
make[2]: *** [CMakeFiles/hello.dir/all] Error 2
make[2]: Leaving directory '/code/build'
Makefile:83: recipe for target 'all' failed
make[1]: *** [all] Error 2
make[1]: Leaving directory '/code/build'
Makefile:5: recipe for target 'build' failed
make: *** [build] Error 2
The command '/bin/sh -c make build' returned a non-zero code: 2
make: *** [all] Error 2
I tried wrapping up my problem here https://github.com/jdrouet/opencv-wasm, you can pull it and run make, it'll build with docker.
Do you have any idea of how I could fix my issue?
Ok, looks like I found a way to build it (still here https://github.com/jdrouet/opencv-wasm) but now, when I try to use the resize function, I end up with the following error :
Error: the string "174007712 - Exception catching is disabled, this exception cannot be caught. Compile with -s DISABLE_EXCEPTION_CATCHING=0 or DISABLE_EXCEPTION_CATCHING=2 to catch." was thrown, throw an Error :)
So now, I don't know if I'm not using the function well... Here is the function : https://github.com/jdrouet/opencv-wasm/blob/master/source/resizer.cpp#L23
Do you have any idea of why it's not working?
[ 6%] Built target ChainedLib
[ 12%] Built target ChainedApp
[ 15%] Linking CXX executable ColorConsole
/usr/bin/ld: cannot open output file ColorConsole: Is a directory
collect2: error: ld returned 1 exit status
make[2]: *** [ColorConsole] 오류 1
make[1]: *** [CMakeFiles/ColorConsole.dir/all] 오류 2
make: *** [all] 오류 2
I install plog library.
cmake CMakeList.txt complete. but, makefile is fail
I don't know cause
You have a directory called ColorConsole. The makefile tries to produce a file with that name. The solution is most likely to remove (or rename) the directory.
I'm trying to build the libdepixelize library , but I'm getting the following error:
[100%] Linking CXX executable depixelize-kopf2011
/usr/bin/ld: /usr/local/lib/lib2geom.a(nearest-point.o): undefined reference to symbol '_ZNKSt7__cxx1119basic_ostringstreamIcSt11char_traitsIcESaIcEE3strEv##GLIBCXX_3.4.21'
//usr/lib/x86_64-linux-gnu/libstdc++.so.6: error adding symbols: DSO missing from command line
clang: error: linker command failed with exit code 1 (use -v to see invocation)
src/depixelize-kopf2011/CMakeFiles/depixelize-kopf2011.dir/build.make:95: recipe for target 'src/depixelize-kopf2011/depixelize-kopf2011' failed
make[2]: *** [src/depixelize-kopf2011/depixelize-kopf2011] Error 1
CMakeFiles/Makefile2:142: recipe for target 'src/depixelize-kopf2011/CMakeFiles/depixelize-kopf2011.dir/all' failed
make[1]: *** [src/depixelize-kopf2011/CMakeFiles/depixelize-kopf2011.dir/all] Error 2
Makefile:127: recipe for target 'all' failed
make: *** [all] Error 2
I'm using clang with libstdc++ as compiler. GCC didn't work either.
EDIT: I used this in the CMakeLists file: set(CMAKE_CXX_FLAGS "-std=c++11 -stdlib=libc++") and then did cmake -DCMAKE_CXX_COMPILER="clang++" .. and make to compile it. The full log is here: https://hastebin.com/axasololuc.js
I have no idea what exactly it means, or even how to fix it.
I installed and tested v0.19.1 successfully before, however, I needed to downgrade to 0.17.1 in order to run some example in omnetpp's veins simulator.
Whenever I run the "make" command, I get the following error:
/usr/bin/ld: ./utils/foxtools/libfoxtools.a(MFXMutex.o): undefined reference to symbol 'pthread_mutexattr_settype##GLIBC_2.2.5'
/lib/x86_64-linux-gnu/libpthread.so.0: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
make[3]: *** [sumo-gui] Error 1
make[3]: Leaving directory `/home/maamoun/pkgs/sumo-0.17.1/src'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/home/maamoun/pkgs/sumo-0.17.1/src'
make[1]: *** [all] Error 2
make[1]: Leaving directory `/home/maamoun/pkgs/sumo-0.17.1/src'
make: *** [all-recursive] Error 1
What am I missing?!
Problem solved, had to install libproj-dev and include proj in the ./configure using the --with-proj-includes=DIR
[EDIT] after 15 minutes of making, same error raised again!!!