After configuring with the attached config.log, I'm getting the following error during build: CC btio/bluetoothd-btio.o btio/btio.c: In function 'bt_io_get_type': btio/btio.c:109:35: error: 'SO_DOMAIN' undeclared (first use in this function) btio/btio.c:109:35: note: each undeclared identifier is reported only once for each function it appears in btio/btio.c:123:35: error: 'SO_PROTOCOL' undeclared (first use in this function) make[3]: *** [btio/bluetoothd-btio.o] Error 1 make[2]: *** [all] Error 2 make[2]: Leaving directory `/home/embedded-linux/tool/ti-sdk/bluez/bluez-5.2' make[1]: *** [make] Error 2 make[1]: Leaving directory `/home/embedded-linux/tool/ti-sdk/bluez' make: *** [bluez] Error 2 I checked the kernel/usr/include/sys/socket.h and it does not have SO_DOMAIN defined. I am using a fresh (cross-)build of glibc-2.17. Note that I am cross-compiling for the beagle-board xm using TI's Arago cross-compiler tools. Am I missing something obvious, or is this a build bug? -- Randy Yates Digital Signal Labs http://www.digitalsignallabs.com