Building ends in failure on Ubuntu

[AlexanderSLoburev]

Hi, I'm having a problem installing the app. Here is my system:

dave@ubuntu:~/ImHex/build$ hostnamectl                                                                                               
   Static hostname: ubuntu                                                                                                           
   Icon name: computer-vm                                                                                                      
   Chassis: vm                                                                                                               
   Machine ID: 7414d0b9e8bf4eccabf73e2469e64c5f                                                                                 
   Boot ID: c57706f0dc9c4c76943068219a64cdcc
   Virtualization: vmware
   Operating System: Ubuntu 18.04.6 LTS
   Kernel: Linux 5.4.0-136-generic
   Architecture: x86

If you follow the instructions at https://github.com/WerWolv/ImHex/blob/master/dist/compiling/linux.md, the command
CC=gcc-12 CXX=g++-12 cmake -DCMAKE_CXX_COMPILER=/usr/bin/g++ -DCMAKE_C_COMPILER=/usr/bin/gcc -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX="/usr" -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache -DCMAKE_C_FLAGS="-fuse-ld=lld" -DCMAKE_CXX_FLAGS="-fuse-ld=lld" -DCMAKE_OBJC_COMPILER_LAUNCHER=ccache -DCMAKE_OBJCXX_COMPILER_LAUNCHER=ccache ..
ends with an error:

-- The C compiler identification is GNU 7.5.0
-- The CXX compiler identification is GNU 7.5.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - failed
-- Check for working C compiler: /usr/bin/gcc
-- Check for working C compiler: /usr/bin/gcc - broken
CMake Error at /usr/local/share/cmake-3.20/Modules/CMakeTestCCompiler.cmake:66 (message):
  The C compiler

    "/usr/bin/gcc"

  is not able to compile a simple test program.

  It fails with the following output:

    Change Dir: /home/dave/ImHex/build/CMakeFiles/CMakeTmp
    
    Run Build Command(s):/usr/bin/make -f Makefile cmTC_03c55/fast && /usr/bin/make  -f CMakeFiles/cmTC_03c55.dir/build.make CMakeFiles/cmTC_03c55.dir/build
    make[1]: Entering directory '/home/dave/ImHex/build/CMakeFiles/CMakeTmp'
    Building C object CMakeFiles/cmTC_03c55.dir/testCCompiler.c.o
    /usr/bin/gcc   -fuse-ld=lld  -o CMakeFiles/cmTC_03c55.dir/testCCompiler.c.o -c /home/dave/ImHex/build/CMakeFiles/CMakeTmp/testCCompiler.c
    Linking C executable cmTC_03c55
    /usr/local/bin/cmake -E cmake_link_script CMakeFiles/cmTC_03c55.dir/link.txt --verbose=1
    /usr/bin/gcc -fuse-ld=lld  CMakeFiles/cmTC_03c55.dir/testCCompiler.c.o -o cmTC_03c55 
    collect2: fatal error: cannot find 'ld'
    compilation terminated.
    CMakeFiles/cmTC_03c55.dir/build.make:98: recipe for target 'cmTC_03c55' failed
    make[1]: *** [cmTC_03c55] Error 1
    make[1]: Leaving directory '/home/dave/ImHex/build/CMakeFiles/CMakeTmp'
    Makefile:127: recipe for target 'cmTC_03c55/fast' failed
    make: *** [cmTC_03c55/fast] Error 2
    
    

  

  CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
  CMakeLists.txt:22 (project)


-- Configuring incomplete, errors occurred!
See also "/home/dave/ImHex/build/CMakeFiles/CMakeOutput.log".
See also "/home/dave/ImHex/build/CMakeFiles/CMakeError.log".

What should I do in this case?

[WerWolv]

GNU 7.5.0
Your compiler is way way too old. It looks like you're setting CC to gcc12 but at the same time also set CMAKE_C_COMPILER to /usr/bin/gcc which overrides whatever you set CC to. Try just setting CMAKE_C_COMPILER and CMAKE_CXX_COMPILER to the right gcc version or remove those two flags alltogether

[AlexanderSLoburev]

Thank you very much for your reply. I updated gcc and g++, but now I have the following kind of error:

dave@ubuntu:~/ImHex/build$ whereis gcc-11
gcc-11: /usr/bin/gcc-11 /usr/share/man/man1/gcc-11.1.gz
dave@ubuntu:~/ImHex/build$ whereis g++-11
g++-11: /usr/bin/g++-11 /usr/share/man/man1/g++-11.1.gz
dave@ubuntu:~/ImHex/build$ CC=gcc-11 CXX=g++-11 cmake                        -DCMAKE_CXX_COMPILER=/usr/bin/g++-11          -DCMAKE_C_COMPILER=/usr/bin/gcc-11            -DCMAKE_BUILD_TYPE=Release                    -DCMAKE_INSTALL_PREFIX="/usr"               -DCMAKE_C_COMPILER_LAUNCHER=ccache            -DCMAKE_CXX_COMPILER_LAUNCHER=ccache          -DCMAKE_C_FLAGS="-fuse-ld=lld"                -DCMAKE_CXX_FLAGS="-fuse-ld=lld"              -DCMAKE_OBJC_COMPILER_LAUNCHER=ccache         -DCMAKE_OBJCXX_COMPILER_LAUNCHER=ccache       ..
-- The C compiler identification is GNU 11.1.0
-- The CXX compiler identification is GNU 11.1.0
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - failed
-- Check for working C compiler: /usr/bin/gcc-11
-- Check for working C compiler: /usr/bin/gcc-11 - broken
CMake Error at /usr/local/share/cmake-3.20/Modules/CMakeTestCCompiler.cmake:66 (message):
  The C compiler

    "/usr/bin/gcc-11"

  is not able to compile a simple test program.

  It fails with the following output:

    Change Dir: /home/dave/ImHex/build/CMakeFiles/CMakeTmp
    
    Run Build Command(s):/usr/bin/make -f Makefile cmTC_9c53d/fast && /usr/bin/make  -f CMakeFiles/cmTC_9c53d.dir/build.make CMakeFiles/cmTC_9c53d.dir/build
    make[1]: Entering directory '/home/dave/ImHex/build/CMakeFiles/CMakeTmp'
    Building C object CMakeFiles/cmTC_9c53d.dir/testCCompiler.c.o
    /usr/bin/gcc-11   -fuse-ld=lld  -o CMakeFiles/cmTC_9c53d.dir/testCCompiler.c.o -c /home/dave/ImHex/build/CMakeFiles/CMakeTmp/testCCompiler.c
    Linking C executable cmTC_9c53d
    /usr/local/bin/cmake -E cmake_link_script CMakeFiles/cmTC_9c53d.dir/link.txt --verbose=1
    /usr/bin/gcc-11 -fuse-ld=lld  CMakeFiles/cmTC_9c53d.dir/testCCompiler.c.o -o cmTC_9c53d 
    collect2: fatal error: cannot find ‘ld’
    compilation terminated.
    CMakeFiles/cmTC_9c53d.dir/build.make:98: recipe for target 'cmTC_9c53d' failed
    make[1]: *** [cmTC_9c53d] Error 1
    make[1]: Leaving directory '/home/dave/ImHex/build/CMakeFiles/CMakeTmp'
    Makefile:127: recipe for target 'cmTC_9c53d/fast' failed
    make: *** [cmTC_9c53d/fast] Error 2
    
    

  

  CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
  CMakeLists.txt:22 (project)


-- Configuring incomplete, errors occurred!
See also "/home/dave/ImHex/build/CMakeFiles/CMakeOutput.log".
See also "/home/dave/ImHex/build/CMakeFiles/CMakeError.log".

[WerWolv]

Did you run the dependency install script? I think it can't find the ld.lld linker

https://github.com/WerWolv/ImHex/blob/master/dist/get_deps_debian.sh

[AlexanderSLoburev]

Oh, yes, I forgot it. Thank you!