If you really want to compile without ASM, configure with--disable-asm.

It was a wonderful problem for me, yes, I didn't know what it meant, but he just showed up.

A related question was found http://trac.ffmpeg.org/wiki/How%20to%20quickly%20compile%20libx264

If you get a message like this: (If you get such information)

Found yasm 0.x.x.xxxx
Minimum version is yasm-1.0.0
If you really want to compile without asm, configure with --disable-asm.

That means, which has an old version of Yasm on your system, so you should update it. The quickest.

(meaning that you have an old version of Yasm (seems to be a compiler?) Installed in your system, so it's time to upgrade him. Quick workaround:)

# git clone git://github.com/yasm/yasm.git
# cd yasm
# ./autogen.sh
# ./configure
# make
# make install

If you really want to compile without ASM, configure with--disable-asm.