[pulseaudio-discuss] Building PA on GCC 4.7

[Arun Raghavan]

On Sat, 2012-02-25 at 11:03 +0000, Colin Guthrie wrote:
> 'Twas brillig, and Arun Raghavan at 25/02/12 04:00 did gyre and gimble:
> > On Fri, 2012-02-24 at 21:30 +0000, Colin Guthrie wrote:
> >> 'Twas brillig, and Lennart Poettering at 20/02/12 19:08 did gyre and gimble:
> >>> Heya,
> >>>
> >>> It turns out I currently can't build PA on F17, due to some GCC 4.7 ASM
> >>> incompatibility in the SBC code:
> >>>
> >>>   CC     libbluetooth_sbc_la-sbc_primitives_mmx.lo
> >>> modules/bluetooth/sbc/sbc_primitives_mmx.c: In function 'sbc_calc_scalefactors_mmx':
> >>> modules/bluetooth/sbc/sbc_primitives_mmx.c:294:4: warning: asm operand 2
> >>> probably doesn't match constraints [enabled by default]
> >>> modules/bluetooth/sbc/sbc_primitives_mmx.c:294:4: error: impossible
> >>> constraint in 'asm'
> >>> make[3]: *** [libbluetooth_sbc_la-sbc_primitives_mmx.lo] Error 1
> >>>
> >>> git blame says Siarhei Siamashka wrote this bit. Siarhei, any idea what
> >>> is going on here?
> >>
> >> Looks like:
> >>
> >> http://git.kernel.org/?p=bluetooth/bluez.git;a=commit;h=03bb9d3426af326642cb4ff280a793cd69a0d844
> >>
> >> fixes the issue.
> >>
> >> "make update-sbc" run and the result pushed to git.
> > 
> > That error does seem to be different from the one posted here, though.
> 
> Yup, I didn't read properly the phrase "pushed a fix for bluez"... Peter
> meant he'd pushed a fix to *fedora* for bluez *package*... /me just
> assumed the most recent commit in bluez upstream git mentioning sbc was
> the one to which he was referring. Silly me.
> 
> Real fix is here:
> http://pkgs.fedoraproject.org/gitweb/?p=bluez.git;a=blob;f=sbc_mmx.patch;h=2f00bb6856fb8e313f332d8ed90ca65a3a58de3a;hb=HEAD
> 
> As soon as it goes upstream in bluez we can do make update-sbc again and
> push it :)