[Discuss-gnuradio] configure tests?

[Michael Dickens]

I think I've got the issue with gr-audio-osx running on Intel  
Macs ... it's about endianness in the float stream.  Which means, if  
I'm correct, that I need to add a #ifdef to select on whether the CPU  
is big (PPC) or little (Intel) endian.  Anyone know if this is  
already available for configure, or will I need to add one?  If the  
latter, I'm sure it's straight forward (e.g. `uname -a | grep  
powerpc` == ""), but why reinvent the wheel?

Also, it looks like Apple's GCC implements the ".align X" in assembly  
as a log2 based number (for either PPC or Intel) while others use  
".align Y" where X = log2 (Y) .. a linear number.  I really doubt  
that this is available for configure, but it's worth checking.  I've  
already started writing this one ("config/gr_asm_dot_align.m4"), but  
again why reinvent the wheel?

Thanks! - MLD