How to colcon build RelWithDebInfo with no code optimizations ( -O0 )

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Hi, I am trying to build a project with ros2 foxy windows, in RelWithDebInfo with no code optimizations ( -O0 ). The following line works:

colcon build --merge-install --event-handlers console_direct+ --cmake-args -DCMAKE_BUILD_TYPE=RelWithDebInfo

However when I try to indicate I want all optimizations turned off, the project is built in release mode, with no .pdb files that are needed for debugging and putting breakpoints. The following line seems to ignore all flags and creates a release project, not RelWithDebInfo project:

colcon build --merge-install --event-handlers console_direct+ --cmake-args " -DCMAKE_BUILD_TYPE=RelWithDebInfo" --cmake-args " -DCMAKE_C_FLAGS_RELWITHDEBINFO=-g -O0" --cmake-args " -DCMAKE_CXX_FLAGS_RELWITHDEBINFO=-g -O0"

I saw at https://colcon.readthedocs.io/en/rele... that: --cmake-args [* [* …]] , Pass arbitrary arguments to CMake projects. Arguments matching other options must be prefixed by a space, e.g. --cmake-args " --help"

I tried many other variants but they all created Release projects, without any debug symbols ( Eventually I need RelWithDebInfo with no code optimizations ( -O0 ) :

colcon build --merge-install --cmake-args " -DCMAKE_BUILD_TYPE=Debug" --cmake-args " -DCMAKE_C_FLAGS_DEBUG=-g -O0" --cmake-args " -DCMAKE_CXX_FLAGS_DEBUG=-g -O0" --event-handlers console_direct+

colcon build --merge-install --cmake-args -DCMAKE_BUILD_TYPE=Debug --cmake-args -DCMAKE_C_FLAGS_DEBUG="-g -O0" --cmake-args -DCMAKE_CXX_FLAGS_DEBUG="-g -O0" --event-handlers console_direct+

colcon build --merge-install --cmake-args "-DCMAKE_BUILD_TYPE=Debug" --cmake-args " -DCMAKE_C_FLAGS_DEBUG=-g -O0" --cmake-args " -DCMAKE_CXX_FLAGS_DEBUG=-g -O0" --event-handlers console_direct+

colcon build --merge-install --cmake-args " -DCMAKE_BUILD_TYPE=Debug -DCMAKE_C_FLAGS_DEBUG="-g -O0" -DCMAKE_CXX_FLAGS_DEBUG="-g -O0" "

colcon build --merge-install --cmake-args " -DCMAKE_BUILD_TYPE=Debug" --cmake-args " -DCMAKE_C_FLAGS_DEBUG='-g -O0' " --cmake-args " -DCMAKE_CXX_FLAGS_DEBUG='-g -O0' "

Any ideas?