Libevdev installed but cmake cannot detect during installation - Ubuntu 20.04.1 LTS

[weilintuye95]

I'm trying to install logiops and I'm pretty sure all requirement packages are installed, eg. if i run the following:

sudo apt install cmake libevdev-dev libudev-dev libconfig++-dev git g++     

I get:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
cmake is already the newest version (3.16.3-1ubuntu1).
g++ is already the newest version (4:9.3.0-1ubuntu2).
git is already the newest version (1:2.25.1-1ubuntu3).
libevdev-dev is already the newest version (1.9.0+dfsg-1).
libconfig++-dev is already the newest version (1.5-0.4build1).
libudev-dev is already the newest version (245.4-4ubuntu3.2).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

The error is:

-- The C compiler identification is GNU 5.5.0
-- The CXX compiler identification is GNU 5.5.0
-- Check for working C compiler: /home/linuxbrew/.linuxbrew/bin/cc
-- Check for working C compiler: /home/linuxbrew/.linuxbrew/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /home/linuxbrew/.linuxbrew/bin/c++
-- Check for working CXX compiler: /home/linuxbrew/.linuxbrew/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Found Git: /usr/bin/git (found version "2.25.1") 
LogiOps Version Number: v0.2.2-31-g4c58224
-- Looking for pthread.h
-- Looking for 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 PkgConfig: /home/linuxbrew/.linuxbrew/bin/pkg-config (found version "0.29.2") 
-- Checking for module 'libevdev'
--   No package 'libevdev' found
CMake Error at /usr/share/cmake-3.16/Modules/FindPkgConfig.cmake:463 (message):
  A required package was not found
Call Stack (most recent call first):
  /usr/share/cmake-3.16/Modules/FindPkgConfig.cmake:643 (_pkg_check_modules_internal)
  src/logid/CMakeLists.txt:75 (pkg_check_modules)


-- Configuring incomplete, errors occurred!
See also "/home/weilin/Downloads/logiops/build/CMakeFiles/CMakeOutput.log".
See also "/home/weilin/Downloads/logiops/build/CMakeFiles/CMakeError.log".

Any help would be appreciated! Thanks in advance

[alexpetrean80]

Happens on Fedora Workstation 32 too

[PixlOne]

For Fedora, try the libevdev-devel package.

As for Ubuntu/Debian, I'll look into that.

[danmackinlay]

@weilintuye95 cmake is picking up your linuxbrew setup. Is that what you want? Try temporarily removing cmake from your path in your shell of choice, then purging the cmake cache

rm CMakeCache.txt 

Now run the install instructions as normal. Does that make it build for you? It does for me.

There is probably a way of makeing this go by setting config variables for CMake or editing CMakeCache.txt

[weilintuye95]

Ah you are right, sorry for the late reply! I i had some old linuxbrew folders from previous installations, so all i did was delete the linuxbrew folder in /home with sudo rm -rf /home/linuxbrew) and everything worked. Thanks @danmackinlay!!

[lrettig]

Ran into the same issue. In my case, it was finding pkg-config inside linuxbrew. Assuming you don't want to totally blow away /home/linuxbrew, you can just temporarily remove it from your PATH variable when you run cmake and it should work.

[americanhanko]

Had the same issue. I ended up putting the following into my shell profile so that pkg-config won't have issues finding .pc files in the future, regardless of where they're installed:

export PKG_CONFIG_PATH="$(/usr/bin/pkg-config --variable pc_path pkg-config)":"$(/home/linuxbrew/.linuxbrew/bin/pkg-config --variable pc_path pkg-config)"

Which results in:

❯ echo $PKG_CONFIG_PATH | tr : \n
/usr/local/lib/x86_64-linux-gnu/pkgconfig
/usr/local/lib/pkgconfig
/usr/local/share/pkgconfig
/usr/lib/x86_64-linux-gnu/pkgconfig
/usr/lib/pkgconfig
/usr/share/pkgconfig
/home/linuxbrew/.linuxbrew/lib/pkgconfig
/home/linuxbrew/.linuxbrew/share/pkgconfig
/home/linuxbrew/.linuxbrew/Homebrew/Library/Homebrew/os/linux/pkgconfig

After that, removing CMakeCache.txt and re-running cmake .. worked:

logiops/build on  master via △ v3.16.3
❯ cmake ..
-- The C compiler identification is GNU 9.3.0
-- The CXX compiler identification is GNU 9.3.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Found Git: /usr/bin/git (found version "2.25.1") 
LogiOps Version Number: v0.2.2-70-gdbe2b28
-- Looking for pthread.h
-- Looking for 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 PkgConfig: /home/linuxbrew/.linuxbrew/bin/pkg-config (found version "0.29.2") 
-- Checking for module 'libevdev'
--   Found libevdev, version 1.9.0
-- Checking for module 'systemd'
--   Found systemd, version 245
-- Checking for module 'libconfig'
--   Found libconfig, version 1.5
-- Checking for module 'libudev'
--   Found libudev, version 245
-- systemd units will be installed at /lib/systemd/system
-- Configuring done
-- Generating done
-- Build files have been written to: /home/ehanko/dev/github.com/PixlOne/logiops/build