CMake makefiles not processed by omake

[ghost]

The project I choose to test is https://github.com/aslze/asl.

CMake configuration completed successfully:

mkdir build
cd build
cmake -DCMAKE_C_COMPILER=occ -DCMAKE_CXX_COMPILER=occ -G"MinGW Makefiles" ..

I tried to use OMake instead of mingw32-make:

C:\Work\asl\build>omake
Error: No rule to make target 'src\CMakeFiles\asls.dir\depend'
Error: No rule to make target 'src\CMakeFiles\asls.dir\build'
[ 50%] Built target asls

Error CMakeFiles\Makefile2(125): commands returned error code 2

Error makefile(134): commands returned error code 2

It fails immediately.

Note: I have mingw32-make also in PATH.