[PD-dev] devel_0_38 compilation

Hi Tim, currently, devel_0_38 is not compilable on OSX because of ld: Undefined symbols: _env_tilde_accum _line_tilde_slope_simd _peakvec_simd

Apart from that i disabled LOCKFREE fifos for powerpc since the assembly code for CAS2 can't be assembled: m_fifo.c:204: error: called object is not a function m_fifo.c:204: error: called object is not a function m_fifo.c:204: error: called object is not a function m_fifo.c:204: error: called object is not a function m_fifo.c:204: error: called object is not a function m_fifo.c:204: error: parse error before ')' token m_fifo.c:207: error: called object is not a function etc.etc.

best greetings, Thomas