[Linux] Compiling Ardour 2.X without SSE Optimizations

Installation & Configuration Linux
#1

Hi all :slight_smile:

Sorry form my very bad “spaghetti-english” powered by Gøogle, by i don’t speak it.

Now, this is the question:

it’s possible to build Ardour without SSE optimizations? My CPU is an AMD Athlon Thunderbird.

How can “instruct” scons?

I tried with:

export CFLAGS="-O3 -mno-sse -mno-sse2"; export CXXFLAGS=$CFLAGS

but it seems not work.

Thanks in advance for your help

#2

Hi there!

I have the same CPU (AMD Athlon Thunderbird 1,4 GHz 133 MHz fsb) and also thought about this some time ago.

Do I get any performance gain if I compile without SSE (if the CPU doesn’t support SSE like the AMd Athlon Thunderbird)?

thanks,
Benjamin

#3

Solved!

Thanks philicorda, you’re right when you wrote:

“I think you can do it like this: scons FPU_OPTIMIZATION=0”

:wink:

Now ardour is compiled with “mmx” and “3dnow” support only.

Best regards :slight_smile:

#4

I think you can do it like this:

scons FPU_OPTIMIZATION=0

try scons --help for other options.