If you see this early in the output
-----
Run the configure script to configure the downloaded software
The ./download script has ended.
Starting ./configure script.
/bin/sed
Removing DOS LF chars...
Done.
x264
No suitable assembler found. Install 'yasm' to get MMX/SSE optimized code.
If you really want to compile without asm, configure with --disable-asm.
x264 done
----
Then you need to install nasm using synaptic package manager
The source of this problem lies with nasm
If you see this early in the output
-----
Run the configure script to configure the downloaded software
The ./download script has ended.
Starting ./configure script.
/bin/sed
Removing DOS LF chars...
Done.
x264
No suitable assembler found. Install 'yasm' to get MMX/SSE optimized code.
If you really want to compile without asm, configure with --disable-asm.
x264 done
----
Then you need to install nasm using synaptic package manager