can not found usb.h when compiling Openocd using mingw?
jlink.c:32:17: usb.h: No such file or directory
jlink.c: In function `jlink_usb_open’:
jlink.c:750: warning: assignment makes pointer from integer without a cast
jlink.c:754: error: dereferencing pointer to incomplete type
jlink.c:756: error: dereferencing pointer to incomplete type
jlink.c:756: error: dereferencing pointer to incomplete type
jlink.c:758: error: dereferencing pointer to incomplete type
jlink.c:758: error: dereferencing pointer to incomplete type
jlink.c:760: warning: assignment makes pointer from integer without a cast
jlink.c:763: error: dereferencing pointer to incomplete type
make[3]: *** [jlink.o] Error 1
make[3]: Leaving directory `/c/openocd/src/jtag’
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/c/openocd/src’
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/c/openocd’
make: *** [all] Error 2
how to set the include path in MSYS?