…ing the X axis to an absolute level position.

Add Wasin Thonkaew to staff.

This will be safer, one library at the time will be fed like the
following

-Wl,-rpath,<library>

before it has problem with multiple libraries, now with above, it works
properly.

This makes it easier to do cross-compile. In short, build all
dependencies as usual, then execute the following build.sh command

BUILD_DEBUG=1 EXTRA_INCLUDES="..." EXTRA_LIBRARIES="..." ./build.sh 5

in which specify all paths to built dependencies via EXTRA_INCLUDES and
EXTRA_LIBRARIES separated by space.

For example

EXTRA_INCLUDE="/my/deps/sdl2-win32/include/SDL2
/my/deps/zlib-win32/include ..." (specify more paths in ...)

same goes for EXTRA_LIBRARIES

EXTRA_LIBRARIES="/my/deps/sdl2-win32/lib /my/deps/zlib-win32/lib ...".

Improve Cross-compile support for Windows build on Linux