Updated Xmingw32 Libraries... Are they actually static libs?

Quick question.

using the *.a libs you provided, my app compiles just fine. ( Thanks! ),
but unusually, my app seems to run fine without any of the dlls except

I’m using the link flags -lstdc++ -lttf -lSDLimage -lmingw32 -lSDLmain
-luser32 -lgdi32 -lwinmm -ldxguid -mwindows -lSDL -lpng -lz. All of the
above mentioned libraries are found in my cross-compiler’s lib

Any input?