avformat NOT creating avi file on 32 bit Mac 10.6

[Thunderbird]

I have compiled ffmpeg on 64 bit Mac machine with following configuration.
ffmpeg version 0.8.2

./configure --enable-debug --disable-asm --disable-yasm --disable-mmx --disable-mmx2 --disable-static --enable-shared --extra-cflags="-arch i386" --extra-ldflags="-arch i386" --arch=x86 --target-os=darwin --enable-cross-compile

This libraries saves video from USB webcam fine on 64 bit machine.
but on 32 bit machine I get following errors.
I am using libavformat to create avi file

avformat_alloc_output_context2(&oc,NULL,NULL,"/Documents/temp.avi")
[NULL @ 0x3167800] Unable to find a suitable output format for '/Documents/temp.avi'
avformat_alloc_output_context2(&oc,NULL,"avi","/Documents/temp.avi")
[NULL @ 0x3163800] Requested output format 'avi' is not a suitable output format

same ffmpeg is able to convert mpeg files to avi files

Any help is appreciated.

Thanks

[Carl Eugen Hoyos]

Could you test latest git head?
Is the problem also reproducible with ffmpeg (the application), or only if you use the library from another application?
Does "./configure --cc='cc -m32'" work with current git head and is the problem also reproducible with this configuration?

[Carl Eugen Hoyos]

Please re-open if more information is available.