can i use external libraries with avr-gcc?
The BlueZ kernel modules, libraries and utilities are known to be working prefect on many architectures supported by Linux. This also includes single and multi processor platforms as well as hyper threading systems:
Intel and AMD x86
AMD64 and EM64T (x86-64)
SUN SPARC 32/64bit
Intel StrongARM and XScale
Hitachi/Renesas SH processors
Of course you CANNOT use precompiled libraries for a different architecture !!
And it has a dozen other dependencies !