CMake Error at /usr/share/cmake-3.16/Modules/CMakeTestCCompiler.cmake:60 (message):
  The C compiler

    "/usr/bin/clang"

  is not able to compile a simple test program.

  It fails with the following output:

    Change Dir: /home/conan/w/cci_PR-3949/.conan/data/mosquitto/2.0.3/_/_/build/2da54aae7623bc874bc0abdcd4d6e66d41b2349d/CMakeFiles/CMakeTmp
    
    Run Build Command(s):/usr/bin/make cmTC_5a5c8/fast && /usr/bin/make -f CMakeFiles/cmTC_5a5c8.dir/build.make CMakeFiles/cmTC_5a5c8.dir/build
    make[1]: Entering directory '/home/conan/w/cci_PR-3949/.conan/data/mosquitto/2.0.3/_/_/build/2da54aae7623bc874bc0abdcd4d6e66d41b2349d/CMakeFiles/CMakeTmp'
    Building C object CMakeFiles/cmTC_5a5c8.dir/testCCompiler.c.o
    /usr/bin/clang    -o CMakeFiles/cmTC_5a5c8.dir/testCCompiler.c.o   -c /home/conan/w/cci_PR-3949/.conan/data/mosquitto/2.0.3/_/_/build/2da54aae7623bc874bc0abdcd4d6e66d41b2349d/CMakeFiles/CMakeTmp/testCCompiler.c
    make[1]: *** [CMakeFiles/cmTC_5a5c8.dir/build.make:66: CMakeFiles/cmTC_5a5c8.dir/testCCompiler.c.o] Terminated
    make[1]: Leaving directory '/home/conan/w/cci_PR-3949/.conan/data/mosquitto/2.0.3/_/_/build/2da54aae7623bc874bc0abdcd4d6e66d41b2349d/CMakeFiles/CMakeTmp'
    make: *** [Makefile:121: cmTC_5a5c8/fast] Error 2
    
    

  

  CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
  CMakeLists.txt:10 (project)


[HOOK - conan-center.py] pre_export(): WARN: [FPIC OPTION (KB-H006)] This recipe does not include an 'fPIC' option. Make sure you are using the right casing
mosquitto/2.0.3: ERROR: Package '2da54aae7623bc874bc0abdcd4d6e66d41b2349d' build failed
mosquitto/2.0.3: WARN: Build folder /home/conan/w/cci_PR-3949/.conan/data/mosquitto/2.0.3/_/_/build/2da54aae7623bc874bc0abdcd4d6e66d41b2349d
ERROR: Exiting with code: 5