sane-backends: build takes forever

[dylanarena@…]

I have a brand-new MacBook Pro running 10.7.2. I wanted to install GIMP, so I installed MacPorts from the AppStore and then called "sudo port install gimp" from Terminal. I saw a huge list of dependencies, which MacPorts diligently chipped away at for hours. But it seemed to have hung up at the following point in the process:

--->  Fetching archive for sane-backends
--->  Attempting to fetch sane-backends-1.0.22_1.darwin_11.x86_64.tbz2 from http://packages.macports.org/sane-backends
--->  Fetching sane-backends
--->  Attempting to fetch sane-backends-1.0.22.tar.gz from http://distfiles.macports.org/sane-backends
--->  Verifying checksum(s) for sane-backends
--->  Extracting sane-backends
--->  Applying patches to sane-backends
--->  Configuring sane-backends
--->  Building sane-backends

It had been a few hours, so I hit control-C and then called "sudo port install gimp" again. Happily, this time the list of dependencies was very short:

--->  Dependencies to be installed: xsane sane-backends

So I left the computer to run overnight. But when I returned to my computer this morning I saw that it had been hanging at the following line for at least ten hours:

--->  Computing dependencies for gimp
--->  Dependencies to be installed: xsane sane-backends
--->  Building sane-backends

Can anyone help me diagnose the problem?

Thanks very much for your time, Dylan

[neverpanic (Clemens Lang)]

Please remember to use WikiFormatting for shell output, set the port field and Cc the maintainer.

Can you attach the logfile pointed to by port log sane-backends? Also, do you see extensive memory usage while the process runs and does everything get very slow?

[ryandesign (Ryan Carsten Schmidt)]

Replying to cal@…:

Can you attach the logfile pointed to by port log sane-backends?

port log sane-backends prints the contents of the logfile. If you want the location of the logfile, use port logfile sane-backends.

[albanx99@…]

I can confirm this. My logfile is attached.

Same deal: port install gimp ... Building sane-backends takes forever.

[mowerm@…]

Same problem for me. Log attached, seems that build gets hung at

:info:build libtool: link: Waiting for /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_graphics_sane-backends/sane-backends/work/sane-backends-1.0.22/backend/../lib/.libs/liblib.a.lock to be removed

[mowerm@…]

Cc Me!

[aguynamedryan+macports@…]

proposed patch

[aguynamedryan+macports@…]

Bummer. The only thing I can think of is that maybe there's a deadlock situation arising from building in parallel.

Some googling reveals that libtool might be upset since the phrase "Waiting for $lockfile to be removed" appears ​here and right below it suggests not doing a parallel build.

I've removed parallel building from the Portfile.

I couldn't recreate the problem on my end, so I can't verify my proposed patch.

[mowerm@…]

Concerning your patch, when I removed the line for "use_parallel_build", I still ened up at "Waiting for $lockfile to be removed". When I changed the line to

use_parallel_build          no

the build succeeded, and gimp was subsequently installed.

[aguynamedryan+macports@…]

propose patch base on comment:7

[aguynamedryan+macports@…]

Is there anything else I need to do to get the patch committed and this ticket closed? Thanks!

[neverpanic (Clemens Lang)]

Sorry for the delay, r94676. A revision bump was not needed, because the list of installed files didn't change and it you were hit by this bug you can't have a sucessfully installed sane-backends port and thus don't need a rebuild.