[MPlayer-cvslog] r34132 - trunk/configure

[Reimar Döffinger]

On Sun, Jan 08, 2012 at 02:43:14PM +0100, Nicolas George wrote:
> Le nonidi 19 nivôse, an CCXX, Reimar Döffinger a écrit :
> > Just to make it clear: Since autodetection is basically not workable
> > on arm, you have to explicitly specify which CPU to build for.
> > -marmv5 is a deprecated way to do it which you should never use as
> > far as I can tell.
> > -march=... would be the replacement, though I though -march shouldn't really
> > be used for ARM either, but you should set -mcpu= accordingly.
> 
> Do you by any chance have a pointer to a doc helping to figure out the
> correct value for -mcpu et -mtune depending on the version of the compiler
> and the contents of /proc/cpuinfo?

No. I usually experiment wildly until I happen to get something where
configure enables NEON and it does not crash.
Since I consider a video player without NEON support mildly pointless.
I don't know why you ask, but I strongly think that such functionality
belongs in gcc and should be triggered by -mcpu=native.