embedded bluez headers are included in python3 C module builds
Something I noticed while monitoring mips64 bootstrap for edge:
building 'Cython.Compiler.FlowControl' extension
gcc -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -Os -fomit-frame-pointer -g -I/home/buildozer/aports/main/python3/src/bluez-5.53 -Os -fomit-frame-pointer -g -Os -fomit-frame-pointer -g -DTHREAD_STACK_SIZE=0x100000 -Os -fomit-frame-pointer -Os -fomit-frame-pointer -fPIC -I/usr/include/python3.8 -c /home/buildozer/aports/main/cython/src/cython-0.29.15/Cython/Compiler/FlowControl.c -o build/temp.linux-mips64-3.8/home/buildozer/aports/main/cython/src/cython-0.29.15/Cython/Compiler/FlowControl.o
The -I/home/buildozer/main/python3/src/bluez-5.53
seems like it shouldn't be there. We need it for bluetooth/bluetooth.h while building Python, but this CFLAG should not be present when building other packages against the Python3 SDK.