mpd crash on Lion when playing m4a files

[promac@…]

The bug was also reported in mantis:

​http://musicpd.org/mantis/view.php?id=3413

mp3 files play fine, but any m4a file downloaded from icloud crashes mpd when switching to another song or at the end of the song.

I am using the latest mpd port (0.16.5).

[ryandesign (Ryan Carsten Schmidt)]

Then I guess we'll wait for upstream to fix it. Not MacPorts-specific.

[iggames@…]

The upstream bug is stuck because no one can get the debug info he asked for. I took a stab at this myself, and found that I could not reproduce the crash if I disabled optimization (I was trying to include debug symbols with -g, and ​http://stackoverflow.com/questions/1370945/xcode-3-2-llvm-no-local-symbols-when-debugging suggested that optimization might get in the way of this):

Edit the Port file: sudo port edit mpd
Add line: configure.cflags-delete -O2
Uninstall: sudo port uninstall mpd
Reinstall from local sources: sudo port -s install mpd

This suggestions a compiler bug, not necessarily a product bug. Should macports take some action here (such as removing the -O2 flag by default)? Or does the fact that -O2 causes the problem suggest a particular sort of fix in the product?

[promac@…]

Replying to iggames@…:

The upstream bug is stuck because no one can get the debug info he asked for. I took a stab at this myself, and found that I could not reproduce the crash if I disabled optimization (I was trying to include debug symbols with -g, and ​http://stackoverflow.com/questions/1370945/xcode-3-2-llvm-no-local-symbols-when-debugging suggested that optimization might get in the way of this):

Edit the Port file: sudo port edit mpd
Add line: configure.cflags-delete -O2
Uninstall: sudo port uninstall mpd
Reinstall from local sources: sudo port -s install mpd

This suggestions a compiler bug, not necessarily a product bug. Should macports take some action here (such as removing the -O2 flag by default)? Or does the fact that -O2 causes the problem suggest a particular sort of fix in the product?

I can confirm that suppressing -O2 fixes this issue.

That is exactly the same problem I have when running CGAL applications on Lion. Random crashes if I use -O2.

[iggames@…]

Cc Me!

[ryandesign (Ryan Carsten Schmidt)]

Clearing or changing configure.optflags would be easier than using configure.cflags.

Is this change still needed with mpd 0.17?

[promac@…]

Unfortunately, yes, it still crashes.

The solution is keep rebuilding mdp myself ...

[mf2k (Frank Schima)]

rmstonecipher has retired. See #51138.

[kurthindenburg (Kurt Hindenburg)]

closing - mpd requires Mt Lion+