Comments on: Cross-Compiling for Ubuntu ARM by ffmpeg Example

By: Anandhakrishnan R

Anandhakrishnan R — Tue, 15 Oct 2013 08:26:21 +0000

Hello arif,
Thanks for your attention on my question.

Do I have to include the following locations in make file while linking the object files as you have mentioned in your previous comment.,

/usr/arm-linux-gnueabi/lib/libstdc++.so.6
/usr/arm-linux-gnueabi/lib/libstdc++.so.6.0.16
/usr/share/doc/libstdc++6-armel-cross

I am looking forward to your comment to resolve the linking problem.

Thank you,

By: Arif

Arif — Sat, 12 Oct 2013 16:02:48 +0000

Hi, I can't help you with the exact case reproduction but I think it is still a similar issue as my previous comment.

By: Anandhakrishnan R

Anandhakrishnan R — Fri, 11 Oct 2013 11:48:52 +0000

Hi,
I am getting the following error while linking the codes, Kindly give me a suggestion to resolve this linker error.,
/usr/lib/gcc/arm-linux-gnueabi/4.6/../../../../arm-linux-gnueabi/bin/ld: cannot find -lasound
/usr/lib/gcc/arm-linux-gnueabi/4.6/../../../../arm-linux-gnueabi/bin/ld: cannot find -lgstapp-0.10
/usr/lib/gcc/arm-linux-gnueabi/4.6/../../../../arm-linux-gnueabi/bin/ld: cannot find -lgstbase-0.10
/usr/lib/gcc/arm-linux-gnueabi/4.6/../../../../arm-linux-gnueabi/bin/ld: cannot find -lgstreamer-0.10
/usr/lib/gcc/arm-linux-gnueabi/4.6/../../../../arm-linux-gnueabi/bin/ld: cannot find -lgobject-2.0
/usr/lib/gcc/arm-linux-gnueabi/4.6/../../../../arm-linux-gnueabi/bin/ld: cannot find -lgmodule-2.0
/usr/lib/gcc/arm-linux-gnueabi/4.6/../../../../arm-linux-gnueabi/bin/ld: cannot find -lgthread-2.0
/usr/lib/gcc/arm-linux-gnueabi/4.6/../../../../arm-linux-gnueabi/bin/ld: cannot find -lxml2
/usr/lib/gcc/arm-linux-gnueabi/4.6/../../../../arm-linux-gnueabi/bin/ld: cannot find -lglib-2.0
collect2: ld returned 1 exit status
make: *** [avbd] Error 1

By: Arif Kusbandono

Arif Kusbandono — Tue, 21 May 2013 03:15:01 +0000

Test

By: Arif

Arif — Wed, 15 May 2013 07:39:01 +0000

As you can see from my example the linker ld cannot find some Theora libraries needed:

/usr/lib/gcc/arm-linux-gnueabi/4.6.1/../../../../arm-linux-gnueabi/bin/ld: cannot find -ltheoraenc

What I do is copy:

libtheoraenc.a
libtheoraenc.la
libtheoraenc.so

into /usr/local/cross-compile/usr/lib where the linker will look for those. In your case, I think what's missing according to the linker is what's listed here http://packages.ubuntu.com/precise/all/libstdc++6-armel-cross/filelist:

/usr/arm-linux-gnueabi/lib/libstdc++.so.6
/usr/arm-linux-gnueabi/lib/libstdc++.so.6.0.16

I used 4.6.1 for the toolchain by the way, it is weird the way that it missed out libstdc++: a standard in compiling.

By: Alex

Alex — Mon, 13 May 2013 13:35:35 +0000

Can you help me about this error:

/usr/lib/gcc/arm-linux-gnueabi/4.4.5/../../../../arm-linux-gnueabi/bin/ld: cannot find -lstdc++
??

By: Arif

Arif — Mon, 13 May 2013 12:59:23 +0000

If processing time doesn't bother you, you can compile inside the Beagle Board itself. If the board runs Ubuntu ARM, install build-essential from the repo and you're good to go the same as compiling on the desktop. I haven't try libavg so I don't know how long it would take compiling directly on the board. Will tell you when I had the chance.

By: Alex

Alex — Mon, 13 May 2013 10:26:12 +0000

Hello,
I need to cross-compile the libavg-1.7.0 for Ebv beagle board

can you help me