bitbake beagleboard-demo-image - Missing libswscale Makefile

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1

I get the error "| Makefile:62: libswscale/Makefile: No such file or
directory" in task 2494 when running 'bitbake beagleboard-demo-
image'. There's a soft link 'Makefile' that points to a non-existent
Makefile. I searched for updates at git.openembedded.net, but didn't
find any.

2

I get the error "| Makefile:62: libswscale/Makefile: No such file or
directory" in task 2494 when running 'bitbake beagleboard-demo-
image'. There's a soft link 'Makefile' that points to a non-existent
Makefile. I searched for updates at git.openembedded.net, but didn't
find any.

I just hit this problem too. I'm totally guessing as to the cause,
but I noticed that the ffmpeg_git.bb file contains a line that says:
SRC_URI = "git://git.mansr.com/ffmpeg.mru;protocol=git;branch=$
{FFBRANCH}

I suspect that this particular bb task is attempting to download some
required files using git. I'm behind a firewall that won't allow me
to use git. I had to grab a dev snapshot of Angstrom through a git
web page. Now If there are packages that require git for downloading,
this isn't going to work for me.

Does git work for you? Anyone know of a workaround? I tried changing
this line to use http://www.mansr.com with protocol=http, but that
didn't work.

3

I received the same message. This is how I cured it:

I did a bitbake -c clean ffmpeg your-image (to clean out the ffmpeg
package).

Then I just restarted the bitbake your-image (to build), and it
worked the second time.

In general, I have found that occasionally my baking stops for a
network reason (couldn't fetch file etc). And I have to back up a
little and restart like this.

Best regards,
Geof

4

Thanks. I performed the specified commands. Now I get a similar error "| make: *** No rule to make target `libswscale/Makefile'. Stop.". I appreciate your help.

5

Check to see if the link to the libswscale Makefile is broken. Mine
is.

I looked here...
/home/user/Projects/tmp/work/armv7a-angstrom-linux-gnueabi/
ffmpeg-1_0.4.9+r34+gitrafb98868e19e63cbca6c9f0ed9e6cfa48d40277d-r34/
git/build.arm-angstrom-linux-gnueabi.arm-angstrom-linux-gnueabi/
libswscale
...and found that the Makefile link is broken.

I think the git is missing a libswscale folder. The libavcodec,
libavdevice, libavfilter, libavformat, libavutil, and libpostproc all
have folders of the same name here...
/home/user/Projects/tmp/work/armv7a-angstrom-linux-gnueabi/
ffmpeg-1_0.4.9+r34+gitrafb98868e19e63cbca6c9f0ed9e6cfa48d40277d-r34/
git
...but there isn't a libswscale folder there.

Clearly something is wrong with the ffmpeg repository. I don't really
care if I have this package installed right now. I just want to
continue the Angstrom build. How do we tell bitbake to skip this
package and move on?

6

Here's something to try if you're still having troubles with
libswscale...

Edit the ffmpeg_git.bb file where your package files are located (i.e.
for me it's
/home/user/Projects/OE/org.openembedded.dev/packages/ffmpeg)

Change the git in the do_configure section
from:
git clone git://git.mplayerhq.hu/libswscale
to:
git clone http://git.mplayerhq.hu/libswscale

If you're behind a corporate firewall like I am, git just isn't going
to work. So any packages that are written to retrieve files from a
git repository are going to cause problems.

7

If you’re behind a corporate firewall like I am, git just isn’t going
to work. So any packages that are written to retrieve files from a
git repository are going to cause problems.

I faced similar issue when I ran bitbake beagleboard-demo-image behind proxy. I did the following to fix this

On Fedora Core 8 server, we use at work - I also needed to upgrade git-core, curl and doxygen

yum upgrade fedora-release
yum update git-core (to 1.5.4.3)
yum update curl (to 7.18)
yum update doxygen (to 1.5.6)

(1) Created ~/bin/git_proxy_cmd.sh as shown below
#!/bin/sh

Proxycommand auto-proxy-script %h %p

socat - proxy:<proxy.server.com>:$1:$2,proxyport=<port_num>

(2) Modified bitbake/lib/bb/fetch/init.py to add GIT_PROXY_COMMAND to exportvars; exportvars = [‘PATH’, ‘GIT_PROXY_HOST’, ‘GIT_PROXY_PORT’, ‘GIT_CONFIG’, ‘http_proxy’, ‘ftp_proxy’, ‘SSH_AUTH_SOCK’, ‘SSH_AGENT_PID’, ‘GIT_PROXY_COMMAND’]

(3) Added line GIT_PROXY_COMMAND = “~/bin/git_proxy_cmd.sh” to build/conf/local.conf

(4) Added export GIT_PROXY_COMMAND=~/bin/git_proxy_cmd.sh before “git clone git://git.mplayerhq.hu/libswscale || true” in openembedded/packages/ffmpeg/ffmpeg_git.bb

do_configure() {
sed -i -e s:‘check_cflags -std=c99’::g ${S}/configure
cd ${S}
export GIT_PROXY_COMMAND=~/bin/git_proxy_cmd.sh
git clone git://git.mplayerhq.hu/libswscale || true

(5) Did a git pull in openembedded folder to update, followed by bitbake beagleboard-demo-image.

Regards,
Pratheesh