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I'm trying to install ROS from source, following [the guide](https://wiki.ros.org/melodic/Installation/Source) provided by the ROS wiki, however I am getting a strange CMake error right at the beggining when building the package `class_loader`.
CMakeOutput.log:
The system is: Linux - 5.1.12-arch1-1-ARCH - x86_64
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Detecting CXX [-std=c++2a] compiler features compiled with the following output:
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Run Build Command(s):/usr/bin/make cmTC_b785a/fast
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make[1]: Entering directory '/home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp'
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Linking CXX executable cmTC_b785a
/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_b785a.dir/link.txt --verbose=1
/usr/bin/c++ CMakeFiles/cmTC_b785a.dir/feature_tests.cxx.o -o cmTC_b785a
make[1]: Leaving directory '/home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp'
Feature record: CXX_FEATURE:1cxx_aggregate_default_initializers
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Detecting CXX [-std=c++17] compiler features compiled with the following output:
Change Dir: /home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp
Run Build Command(s):/usr/bin/make cmTC_bb2ba/fast
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make[1]: Entering directory '/home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp'
Building CXX object CMakeFiles/cmTC_bb2ba.dir/feature_tests.cxx.o
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Linking CXX executable cmTC_bb2ba
/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_bb2ba.dir/link.txt --verbose=1
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make[1]: Leaving directory '/home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp'
Feature record: CXX_FEATURE:1cxx_aggregate_default_initializers
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Detecting CXX [-std=c++14] compiler features compiled with the following output:
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Run Build Command(s):/usr/bin/make cmTC_22cc5/fast
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make[1]: Entering directory '/home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp'
Building CXX object CMakeFiles/cmTC_22cc5.dir/feature_tests.cxx.o
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Linking CXX executable cmTC_22cc5
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make[1]: Leaving directory '/home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp'
Feature record: CXX_FEATURE:1cxx_aggregate_default_initializers
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Run Build Command(s):/usr/bin/make cmTC_4a0ad/fast
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make[1]: Entering directory '/home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp'
Building CXX object CMakeFiles/cmTC_4a0ad.dir/feature_tests.cxx.o
/usr/bin/c++ -std=c++11 -o CMakeFiles/cmTC_4a0ad.dir/feature_tests.cxx.o -c /home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/feature_tests.cxx
Linking CXX executable cmTC_4a0ad
/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_4a0ad.dir/link.txt --verbose=1
/usr/bin/c++ CMakeFiles/cmTC_4a0ad.dir/feature_tests.cxx.o -o cmTC_4a0ad
make[1]: Leaving directory '/home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp'
Feature record: CXX_FEATURE:0cxx_aggregate_default_initializers
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Detecting CXX [-std=c++98] compiler features compiled with the following output:
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Run Build Command(s):/usr/bin/make cmTC_a5e5b/fast
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make[1]: Entering directory '/home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp'
Building CXX object CMakeFiles/cmTC_a5e5b.dir/feature_tests.cxx.o
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Linking CXX executable cmTC_a5e5b
/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_a5e5b.dir/link.txt --verbose=1
/usr/bin/c++ CMakeFiles/cmTC_a5e5b.dir/feature_tests.cxx.o -o cmTC_a5e5b
make[1]: Leaving directory '/home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp'
Feature record: CXX_FEATURE:0cxx_aggregate_default_initializers
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Feature record: CXX_FEATURE:0cxx_variable_templates
Feature record: CXX_FEATURE:0cxx_variadic_macros
Feature record: CXX_FEATURE:0cxx_variadic_templates
Determining if the include file pthread.h exists passed with the following output:
Change Dir: /home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp
Run Build Command(s):/usr/bin/make cmTC_cd5d8/fast
/usr/bin/make -f CMakeFiles/cmTC_cd5d8.dir/build.make CMakeFiles/cmTC_cd5d8.dir/build
make[1]: Entering directory '/home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp'
Building CXX object CMakeFiles/cmTC_cd5d8.dir/CheckIncludeFile.cxx.o
/usr/bin/c++ -o CMakeFiles/cmTC_cd5d8.dir/CheckIncludeFile.cxx.o -c /home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp/CheckIncludeFile.cxx
Linking CXX executable cmTC_cd5d8
/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_cd5d8.dir/link.txt --verbose=1
/usr/bin/c++ CMakeFiles/cmTC_cd5d8.dir/CheckIncludeFile.cxx.o -o cmTC_cd5d8
make[1]: Leaving directory '/home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp'
Determining if the function pthread_create exists in the pthread passed with the following output:
Change Dir: /home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp
Run Build Command(s):/usr/bin/make cmTC_1d45b/fast
/usr/bin/make -f CMakeFiles/cmTC_1d45b.dir/build.make CMakeFiles/cmTC_1d45b.dir/build
make[1]: Entering directory '/home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp'
Building CXX object CMakeFiles/cmTC_1d45b.dir/CheckFunctionExists.cxx.o
/usr/bin/c++ -DCHECK_FUNCTION_EXISTS=pthread_create -o CMakeFiles/cmTC_1d45b.dir/CheckFunctionExists.cxx.o -c /home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CheckLibraryExists/CheckFunctionExists.cxx
Linking CXX executable cmTC_1d45b
/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_1d45b.dir/link.txt --verbose=1
/usr/bin/c++ -DCHECK_FUNCTION_EXISTS=pthread_create CMakeFiles/cmTC_1d45b.dir/CheckFunctionExists.cxx.o -o cmTC_1d45b -lpthread
make[1]: Leaving directory '/home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp'
CMakeError.log:
Determining if the pthread_create exist failed with the following output:
Change Dir: /home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp
Run Build Command(s):/usr/bin/make cmTC_5b25c/fast
/usr/bin/make -f CMakeFiles/cmTC_5b25c.dir/build.make CMakeFiles/cmTC_5b25c.dir/build
make[1]: Entering directory '/home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp'
Building CXX object CMakeFiles/cmTC_5b25c.dir/CheckSymbolExists.cxx.o
/usr/bin/c++ -o CMakeFiles/cmTC_5b25c.dir/CheckSymbolExists.cxx.o -c /home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx
Linking CXX executable cmTC_5b25c
/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_5b25c.dir/link.txt --verbose=1
/usr/bin/c++ CMakeFiles/cmTC_5b25c.dir/CheckSymbolExists.cxx.o -o cmTC_5b25c
/usr/bin/ld: CMakeFiles/cmTC_5b25c.dir/CheckSymbolExists.cxx.o: in function `main':
CheckSymbolExists.cxx:(.text+0x1b): undefined reference to `pthread_create'
collect2: error: ld returned 1 exit status
make[1]: *** [CMakeFiles/cmTC_5b25c.dir/build.make:87: cmTC_5b25c] Error 1
make[1]: Leaving directory '/home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp'
make: *** [Makefile:121: cmTC_5b25c/fast] Error 2
File /home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx:
/* */
#include <pthread.h>
int main(int argc, char** argv)
{
(void)argv;
#ifndef pthread_create
return ((int*)(&pthread_create))[argc];
#else
(void)argc;
return 0;
#endif
}
Determining if the function pthread_create exists in the pthreads failed with the following output:
Change Dir: /home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp
Run Build Command(s):/usr/bin/make cmTC_b514f/fast
/usr/bin/make -f CMakeFiles/cmTC_b514f.dir/build.make CMakeFiles/cmTC_b514f.dir/build
make[1]: Entering directory '/home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp'
Building CXX object CMakeFiles/cmTC_b514f.dir/CheckFunctionExists.cxx.o
/usr/bin/c++ -DCHECK_FUNCTION_EXISTS=pthread_create -o CMakeFiles/cmTC_b514f.dir/CheckFunctionExists.cxx.o -c /home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CheckLibraryExists/CheckFunctionExists.cxx
Linking CXX executable cmTC_b514f
/usr/bin/cmake -E cmake_link_script CMakeFiles/cmTC_b514f.dir/link.txt --verbose=1
/usr/bin/c++ -DCHECK_FUNCTION_EXISTS=pthread_create CMakeFiles/cmTC_b514f.dir/CheckFunctionExists.cxx.o -o cmTC_b514f -lpthreads
/usr/bin/ld: cannot find -lpthreads
collect2: error: ld returned 1 exit status
make[1]: *** [CMakeFiles/cmTC_b514f.dir/build.make:87: cmTC_b514f] Error 1
make[1]: Leaving directory '/home/user/code/ros_install_ws/build_isolated/class_loader/CMakeFiles/CMakeTmp'
make: *** [Makefile:121: cmTC_b514f/fast] Error 2
The compiler call (I am forcing the compiler to use python2):
sudo PYTHONPATH=/usr/lib/python2.7/site-packages ./src/catkin/bin/catkin_make_isolated --install -DPYTHON_EXECUTABLE=/usr/bin/python2 -DPYTHON_INCLUDE_DIR=/usr/include/python2.7 -DPYTHON_LIBRARY=/usr/lib/libpython2.7.so -DCMAKE_BUILD_TYPE=Release --install-space /opt/ros/melodic
Has anyone ever attempted to do it, and ran into similar problems?
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Is there a reason you aren't using one of the AUR packages (or at least looking at their PKGBUILDs)?
Moving to AUR Issues...
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@jasonwryan Because ROS is built on python2, and AUR ROS packages use python3. I want to compile and install ROS in one go instead of individually selecting ROS python2 packages from the AUR, some of which are already missing due to python2 being EOL and some others create dependency conflicts.
I placed the topic in Programming issues precisely because it's not an AUR issue, and I do not want to use AUR.
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Why are you using sudo for the build, in your home dir no less? That discards a lot of the potentially relevant environment.
Last edited by V1del (2019-06-21 09:47:33)
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Because otherwise it wouldn't be able to create the installation directories in `/opt`, which looking at it should be done only after compilation. Will try it locally then.
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@V1del without `sudo` and install flag the error persists, so I do not think it is caused by that.
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The CMake error come from this line :
/usr/bin/ld: cannot find -lpthreads
It's a know problem with this project and CMake
https://github.com/bmwcarit/meta-ros/issues/620
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