The CMAKE_C_FLAGS_COVERAGE
is a language-wide variable. These flags will be passed to all invocations of the compiler, including invocations that drive compiling and those that drive linking.
Therefore, --coverage
in the CMAKE_*_LINKER_FLAGS_COVERAGE
variables is redundant.
Also this PR allows the user to override CMAKE_C_FLAGS_COVERAGE
by setting a cache variable in the command line.