[speex-dev] Speex 1.1.4 is out

[Jean-Marc Valin]

> 1. I think that run-time processor detection should not be included in Speex.

Definitely. Detection belongs to the application, not libspeex.

> 2. There a few ways of doing per-file compiling flags.
>          a. Make a new static library that is just the files that have the 
> SSE / Altivec code in them. You can then use target_CFLAGS in the 
> Makefile.am script to set what you need

That wouldn't work well on non-x86 though.

>          b. Do tricks with file extensions. CFLAGS applies to files that 
> have a .c ending. CXXFLAGS applies to files that have .cpp . If you place 
> all the SSE intrinics into .cpp files, then you can add in 
> libspeex\Makefile.am  a line like:  libspeex_la_CXXFLAGS = -march=pentium3. 
> Even better, you can use the configure.in magic from our patch. You define 
> the CXXFLAGS to add based upon the target architecture. (Note, you will 
> need to add AC_PROG_CXX into configure.in). That way you add both #ifdef 
> inside those files and you have runtime selection of the function to use.

The problem with this one is that it's really unclean. I don't want to
force people to have a C++ compiler just because gcc is to stupid to
handle this properly.

        Jean-Marc


-- 
Jean-Marc Valin, M.Sc.A., ing. jr.
LABORIUS (http://www.gel.usherb.ca/laborius)
Université de Sherbrooke, Québec, Canada


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