CMake Warning (dev) at CMakeLists.txt:2 (PROJECT):
  cmake_minimum_required() should be called prior to this top-level project()
  call.  Please see the cmake-commands(7) manual for usage documentation of
  both commands.
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  Compatibility with CMake < 3.10 will be removed from a future version of
  CMake.

  Update the VERSION argument  value.  Or, use the ... syntax
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CMake Warning (dev) at CMakeLists.txt:8 (FIND_PACKAGE):
  Policy CMP0148 is not set: The FindPythonInterp and FindPythonLibs modules
  are removed.  Run "cmake --help-policy CMP0148" for policy details.  Use
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CMake Warning:
  Manually-specified variables were not used by the project:

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/var/pisi/comar-3.0.3.1-9/work/comar-3.0.3.1/src/process.c: In function ‘proc_fork’:
/var/pisi/comar-3.0.3.1-9/work/comar-3.0.3.1/src/process.c:139:5: warning: ignoring return value of ‘pipe’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  139 |     pipe(pfd);
      |     ^~~~~~~~~