TARGET_OS_OSX undefined on 10.11.5 · Issue #1097 · libusb/...
os/darwin_usb.c:2449:5: error: 'TARGET_OS_OSX' is not defined, evaluates to 0 [-Werror,-Wundef] #if TARGET_OS_OSX This is supposed to be defined in TargetConditionals.h, but if you look at the TargetConditionals