v5.4.7
CMake: Create liblzma.def when building liblzma.dll with MinGW-w64.
Build: Fix bugs in the CMake files.
CMake: Sync tuklib_cpucores.cmake with tuklib_cpucores.m4.
Build: Update comments about unaligned access to mention 64-bit.
CMake: Use -D_FILE_OFFSET_BITS=64 if (and only if) needed.
CMake: Fix compatibility with CMake 3.13.
Build: Only define HAVE_PROGRAM_INVOCATION_NAME if it is set to 1.