c++ - How Do I Build JAssimp With MinGW? -

i'm using mingw try build jassimp.

for unix users, command build .so file this:

gcc jassimp.cpp -i/usr/lib/jvm/default/include/ \       -i/usr/lib/jvm/default/include/linux -lassimp -shared -fpic -o libjassimp.so 

however, i'm on windows, using mingw.

i've tried using command build .dll:

gcc jassimp.cpp -i$(java_home)/include/ -i$(java_home)/include/win32 -lassimp -shared 

where $java_home$ path environment variable leading jdk directory.

however, error when try this:

in file included jassimp.cpp:1:0: jassimp.h:2:17: fatal error: jni.h: no such file or directory  #include <jni.h>                  ^ compilation terminated. 

what doing wrong?