clang: error: unsupported option '-print-multi-os-directory'
clang: error: no input files
source_subfolder/src/java_raw_api.c:328:46: warning: 'ffi_java_raw_size' is deprecated [-Wdeprecated-declarations]
  ffi_java_raw *raw = (ffi_java_raw*)alloca (ffi_java_raw_size (cif));
                                             ^
include/ffi.h:299:56: note: 'ffi_java_raw_size' has been explicitly marked deprecated here
size_t ffi_java_raw_size (ffi_cif *cif) __attribute__((deprecated));
                                                       ^
source_subfolder/src/java_raw_api.c:331:3: warning: 'ffi_java_ptrarray_to_raw' is deprecated [-Wdeprecated-declarations]
  ffi_java_ptrarray_to_raw (cif, avalue, raw);
  ^
include/ffi.h:295:93: note: 'ffi_java_ptrarray_to_raw' has been explicitly marked deprecated here
void ffi_java_ptrarray_to_raw (ffi_cif *cif, void **args, ffi_java_raw *raw) __attribute__((deprecated));
                                                                                            ^
2 warnings generated.
ar: `u' modifier ignored since `D' is the default (see `U')
ar: `u' modifier ignored since `D' is the default (see `U')
CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_EXPORT_NO_PACKAGE_REGISTRY