I suspect that if the first source in a target is C++, every source in
that targets gets CMAKE_CXX_FLAGS, otherwise CMAKE_C_FLAGS. So for
now, mixing C and C++ sources in the same target is broken.
I worked around this issue by putting C sources in their own static
library, and linking that into
I'm pretty sure that the toolchain bundled with the NDK, made by Google,
hasn't been tested with other generators than Ninja or possibly Make.
Also, there are some known bugs with it, including the one related to
CMAKE_CXX_STANDARD (see
https://code.google.com/p/android/issues/detail?id=227915
We have a large project library of mostly C++, mixed with a handful of
C. The C++ compilation commands look correct and work fine. But C
files are passed to clang++.exe -x c, rather than clang.exe. Which
should work, except that CMAKE_CXX_FLAGS is applied while
CMAKE_C_FLAGS is ignored.
